Trojan.GenericKD.1792145_2162dca8bf – Adaware

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

tmp.exe:1376
%original file name%.exe:1676
%original file name%.exe:1724
kecefoi.exe:1596
wscript.exe:524

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

Explorer.EXE:2032

Mutexes

The following mutexes were created/opened:No objects were found.

File activity

The process tmp.exe:1376 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\tmp2dfd3c29.bat (213 bytes)
%Documents and Settings%\%current user%\Application Data\Egutfog\kecefoi.exe (144 bytes)

The process %original file name%.exe:1676 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\rundll11-.txt (2321 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\mata2.bat (139 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\mata.bat (47 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\notepad .exe (35 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\invs.vbs (78 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmp.exe (144 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\mata2.bat (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\mata.bat (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\invs.vbs (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\rundll11-.txt (0 bytes)

Registry activity

The process tmp.exe:1376 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "15 85 44 29 17 1E F8 B6 07 3C 2F 26 2A 84 E2 1E"

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

[HKCU\Software\Microsoft\Ilani]
"Fecaibi" = "64 55 71 48 78 4C E2 51 40 28 F1 39 F8 5A 6F D4"

Adds a rule to the firewall Windows which allows any network activity:

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\%windir%]
"explorer.exe" = "%windir%\explorer.exe"

The Trojan adds process executable file it works in to the list of trusted Windows Firewall applications:

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\%windir%]
"explorer.exe" = "%windir%\explorer.exe"

The process %original file name%.exe:1676 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "DF 2C 3B 1C DE 9D 30 A7 28 E9 02 3A BC F6 EE 3F"

[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"

[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]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

[HKCU\Software\Microsoft\Ilani]
"Fecaibi" = "64 55 71 48 78 4C E2 51 40 28 F1 39 F8 5A 6F D4"

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

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

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%Documents and Settings%\%current user%\Local Settings\Temp]
"tmp.exe" = "tmp"

The Trojan adds the reference to itself to be executed when a user logs on:

[HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
"Shell" = "%Documents and Settings%\%current user%\Local Settings\Temp\pdf.exe"

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 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 urls to the Intranet Zone:

"IntranetName" = "1"

The process %original file name%.exe:1724 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "53 C7 10 09 7C 8F D1 CD F7 AF 3E A5 19 CA D3 68"

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

[HKCU\Software\Microsoft\Ilani]
"Fecaibi" = "64 55 71 48 78 4C E2 51 40 28 F1 39 F8 5A 6F D4"

The process kecefoi.exe:1596 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "E2 3E 4B E3 1C CC B8 66 5F C4 90 50 E5 30 0F 1E"

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

[HKCU\Software\Microsoft\Ilani]
"Fecaibi" = "64 55 71 48 78 4C E2 51 40 28 F1 39 F8 5A 6F D4"

The process wscript.exe:524 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "D4 2A 54 D2 83 B9 39 CC 5F 47 7A 18 F8 0B DB DB"

[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\ShellNoRoam\MUICache\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp]
"mata2.bat" = "mata2"

[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\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"

Dropped PE files

MD5	File path
8d21774e8027c6da812a69e40bf6ccde	c:\Documents and Settings\"%CurrentUserName%"\Application Data\Egutfog\kecefoi.exe
e0d21bee6dae44a7c6e1896d7a8c7463	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\notepad .exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

The Trojan installs the following user-mode hooks in WININET.dll:

HttpSendRequestExA
HttpSendRequestW
InternetReadFileExA
InternetQueryDataAvailable
HttpSendRequestExW
InternetReadFile
HttpQueryInfoA
HttpSendRequestA
InternetCloseHandle

The Trojan installs the following user-mode hooks in CRYPT32.dll:

PFXImportCertStore

The Trojan installs the following user-mode hooks in USER32.dll:

SetCursorPos
DefMDIChildProcA
DefFrameProcA
DefDlgProcA
GetClipboardData
DefMDIChildProcW
DefFrameProcW
GetUpdateRgn
RegisterClassA
GetDCEx
ReleaseCapture
SetCapture
DefWindowProcA
CallWindowProcA
GetUpdateRect
PeekMessageA
CallWindowProcW
GetMessagePos
GetCursorPos
EndPaint
BeginPaint
DefWindowProcW
RegisterClassExA
GetMessageA
DefDlgProcW
SwitchDesktop
OpenInputDesktop
RegisterClassExW
RegisterClassW
GetCapture
PeekMessageW
GetMessageW
GetWindowDC
TranslateMessage
GetDC
ReleaseDC

The Trojan installs the following user-mode hooks in WS2_32.dll:

WSASend
send
closesocket

The Trojan installs the following user-mode hooks in kernel32.dll:

GetFileAttributesExW

The Trojan installs the following user-mode hooks in ntdll.dll:

LdrLoadDll
NtCreateThread

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*

Scan a system with an anti-rootkit tool.
Terminate malicious process(es) (How to End a Process With the Task Manager):
tmp.exe:1376
%original file name%.exe:1676
%original file name%.exe:1724
kecefoi.exe:1596
wscript.exe:524
Delete the original Trojan file.
Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Local Settings\Temp\tmp2dfd3c29.bat (213 bytes)
%Documents and Settings%\%current user%\Application Data\Egutfog\kecefoi.exe (144 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\rundll11-.txt (2321 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\mata2.bat (139 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\mata.bat (47 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\notepad .exe (35 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\invs.vbs (78 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmp.exe (144 bytes)
Remove the references to the Trojan by modifying the following registry value(s) (How to Work with System Registry):
[HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
"Shell" = "%Documents and Settings%\%current user%\Local Settings\Temp\pdf.exe"
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: Adobe Systems Incorporated
Product Name: Adobe Systems Incorporated
Product Version: 11.0.07.79
Legal Copyright: Copyright 1984-2012 Adobe Systems Incorporated and its licensors. All rights reserved.
Legal Trademarks: Adobe Systems Incorporated
Original Filename: 4335435.exe
Internal Name: 4335435.exe
File Version: 1.0
File Description: Adobe Reader
Comments: Adobe Reader
Language: Language Neutral

Company Name: Adobe Systems IncorporatedProduct Name: Adobe Systems IncorporatedProduct Version: 11.0.07.79Legal Copyright: Copyright 1984-2012 Adobe Systems Incorporated and its licensors. All rights reserved.Legal Trademarks: Adobe Systems IncorporatedOriginal Filename: 4335435.exeInternal Name: 4335435.exeFile Version: 1.0 File Description: Adobe Reader Comments: Adobe Reader Language: Language Neutral

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.rsrc	8192	10984	11264	2.93653	8f20dd0c0007fdf47b25926aed0d71e7
.text	24576	427568	428032	4.57946	57ad5b4b37a4ad46d857df7d02495263
.reloc	458752	12	512	0.084755	ccf042669d98109a0d983693110d6b78

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

URL	IP
hxxp://144.76.167.70/xo2/config/index.php
hxxp://dlauten.bplaced.net/xo2/config/index.php

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

POST /xo2/config/index.php HTTP/1.1

Accept: */*

Content-Type: application/x-www-form-urlencoded

Connection: Close

User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)

Host: dlauten.bplaced.net

Content-Length: 63

Cache-Control: no-cache

.O.6{..A.......o..~i]...cY#.sv....<.G..N7~9.n.f^.r.r@&.s8....d. HTTP/1.1 404 Not Found

Date: Sun, 10 Aug 2014 23:48:15 GMT

Server: Apache/2.4

Last-Modified: Thu, 08 May 2014 18:15:36 GMT

ETag: "99f-4f8e777b00200"

Accept-Ranges: bytes

Content-Length: 2463

Vary: Accept-Encoding

Connection: close

<<< skipped >>>

POST /xo2/config/index.php HTTP/1.1

Accept: */*

Content-Type: application/x-www-form-urlencoded

Connection: Close

User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)

Host: dlauten.bplaced.net

Content-Length: 63

Cache-Control: no-cache

.O.6{..A.......o..~i]...cY#.sv....<.G..N7~9.n.f^.r.r@&.s8....d. HTTP/1.1 404 Not Found

Date: Sun, 10 Aug 2014 23:48:04 GMT

Server: Apache/2.4

Last-Modified: Thu, 08 May 2014 18:15:36 GMT

ETag: "99f-4f8e777b00200"

Accept-Ranges: bytes

Content-Length: 2463

Vary: Accept-Encoding

Connection: close

<<< skipped >>>

POST /xo2/config/index.php HTTP/1.1

Accept: */*

Content-Type: application/x-www-form-urlencoded

Connection: Close

User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)

Host: dlauten.bplaced.net

Content-Length: 63

Cache-Control: no-cache

.O.6{..A.......o..~i]...cY#.sv....<.G..N7~9.n.f^.r.r@&.s8....d. HTTP/1.1 404 Not Found

Date: Sun, 10 Aug 2014 23:48:10 GMT

Server: Apache/2.4

Last-Modified: Thu, 08 May 2014 18:15:36 GMT

ETag: "99f-4f8e777b00200"

Accept-Ranges: bytes

Content-Length: 2463

Vary: Accept-Encoding

Connection: close

<<< skipped >>>

POST /xo2/config/index.php HTTP/1.1

Accept: */*

Content-Type: application/x-www-form-urlencoded

Connection: Close

User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)

Host: dlauten.bplaced.net

Content-Length: 63

Cache-Control: no-cache

.O.6{..A.......o..~i]...cY#.sv....<.G..N7~9.n.f^.r.r@&.s8....d. HTTP/1.1 404 Not Found

Date: Sun, 10 Aug 2014 23:48:04 GMT

Server: Apache/2.4

Last-Modified: Thu, 08 May 2014 18:15:36 GMT

ETag: "99f-4f8e777b00200"

Accept-Ranges: bytes

Content-Length: 2463

Vary: Accept-Encoding

Connection: close

<<< skipped >>>

POST /xo2/config/index.php HTTP/1.1

Accept: */*

Content-Type: application/x-www-form-urlencoded

Connection: Close

User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)

Host: dlauten.bplaced.net

Content-Length: 63

Cache-Control: no-cache

.O.6{..A.......o..~i]...cY#.sv....<.G..N7~9.n.f^.r.r@&.s8....d. HTTP/1.1 404 Not Found

Date: Sun, 10 Aug 2014 23:48:16 GMT

Server: Apache/2.4

Last-Modified: Thu, 08 May 2014 18:15:36 GMT

ETag: "99f-4f8e777b00200"

Accept-Ranges: bytes

Content-Length: 2463

Vary: Accept-Encoding

Connection: close

Content-Type: text/html <pre><!DOCTYPE html PUBLIC. "-//W3C//DTD XHTML 1.1//EN". "hXXp://w ww..</pre> <br

POST /xo2/config/index.php HTTP/1.1

Accept: */*

Content-Type: application/x-www-form-urlencoded

Connection: Close

User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)

Host: dlauten.bplaced.net

Content-Length: 63

Cache-Control: no-cache

.O.6{..A.......o..~i]...cY#.sv....<.G..N7~9.n.f^.r.r@&.s8....d. HTTP/1.1 404 Not Found

Date: Sun, 10 Aug 2014 23:48:10 GMT

Server: Apache/2.4

Last-Modified: Thu, 08 May 2014 18:15:36 GMT

ETag: "99f-4f8e777b00200"

Accept-Ranges: bytes

Content-Length: 2463

Vary: Accept-Encoding

Connection: close

<<< skipped >>>

Map

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

Strings from Dumps

Explorer.EXE_2032_rwx_00E70000_00028000:

.text

`.data

.reloc

#8 "%f/&)

5'7:5%7!/

%.8$;&0#

9#'!35#/(

1,!52#0

78* 73|30( 5?)

zGM^ZM]K}mJAWKTI_LgsSHZL_UG

YN^CM`es{~`Jsuk|}jnx,phnqXkkin*%.ima

gdiplus.dll

GdiplusShutdown

ole32.dll

gdi32.dll

PR_OpenTCPSocket

hXXp://

hXXps://

*.jpg|*.js|*.css|*.gif|*.png|*.ico

HTTP/1.1

userenv.dll

del "%s"

if exist "%s" goto d

del /F "%s"

Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)

Content-Type: application/x-www-form-urlencoded

urlmon.dll

cabinet.dll

PSSSSSSh

SSShlH

SSSh8H

GetProcessHeap

KERNEL32.dll

ExitWindowsEx

GetKeyboardState

MapVirtualKeyW

MsgWaitForMultipleObjects

SetKeyboardState

OpenWindowStationW

GetProcessWindowStation

CreateWindowStationW

CloseWindowStation

SetProcessWindowStation

USER32.dll

RegOpenKeyExW

RegEnumKeyExW

RegCloseKey

RegCreateKeyExW

ADVAPI32.dll

PathIsURLW

UrlUnescapeA

SHDeleteKeyW

SHLWAPI.dll

ShellExecuteW

SHELL32.dll

Secur32.dll

SetViewportOrgEx

GDI32.dll

WS2_32.dll

CertDeleteCertificateFromStore

CertOpenSystemStoreW

CertCloseStore

PFXImportCertStore

CertEnumCertificatesInStore

CertDuplicateCertificateContext

PFXExportCertStoreEx

CRYPT32.dll

HttpSendRequestExA

HttpQueryInfoA

HttpSendRequestExW

HttpSendRequestW

HttpSendRequestA

GetUrlCacheEntryInfoW

HttpAddRequestHeadersW

HttpAddRequestHeadersA

InternetCrackUrlA

HttpOpenRequestA

WININET.dll

OLEAUT32.dll

NETAPI32.dll

273C3[3g3A4D4_4p4

nspr4.dll

cGlobal\XXX

e.dat

kernel32.dll

"%s" %s

/c "%s"

%sx.%s

%sx

SysShadow

Global\{C7BD8F3F-B2E5-0F01-EAA9-4195AE55751B}

%Documents and Settings%\%current user%\Application Data

{B8DEBB2C-86F6-7062-EAA9-4195AE55751B}

%Documents and Settings%\%current user%\Application Data\Guy\urqyypm.icy

%Documents and Settings%\%current user%\Application Data\Guy

urqyypm.icy

Summary

Dynamic Analysis

Removals

Static Analysis

Network Activity

Map

Strings from Dumps