Trojan.PWS.Sinowal.NCX_5b29acf9e6 – Adaware

Susp_Dropper (Kaspersky), Trojan.PWS.Sinowal.NCX (B) (Emsisoft), Trojan.PWS.Sinowal.NCX (AdAware), Backdoor.Win32.PcClient.FD, Sinowal.YR (Lavasoft MAS)Behaviour: Trojan, Backdoor

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

Summary

MD5: 5b29acf9e68ab3b642466158adf418e3

SHA1: c935ade1d4227462eae3933f861c82439420fc6d

SHA256: ef27204c2b84ad0e6d0d039280dea36afc0a834748b1837ec0e1d81cc0cba6ea

SSDeep: 12288:evwckc2x3Vtg5eeFXJHES5yUwNjo2fBtb0op/z: V 3TgFHES5yUwNjoKtb

Size: 999424 bytes

File type: EXE

Platform: WIN32

Entropy: Not Packed

PEID: UPolyXv05_v6

Company: no certificate found

Created at: 2005-06-03 03:07:18

Analyzed on: WindowsXP 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):

%original file name%.exe:1988

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

rundll32.exe:1392

Mutexes

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

File activity

The process %original file name%.exe:1988 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\1.tmp (3802 bytes)
%Documents and Settings%\%current user%\Start Menu\Programs\Startup\scandisk.lnk (685 bytes)

The process rundll32.exe:1392 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\scandisk.lnk (1370 bytes)
%System%\tloadmA2.dll (3802 bytes)
%Documents and Settings%\%current user%\tloadmA2.dll (3802 bytes)

Registry activity

The process %original file name%.exe:1988 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]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

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

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

[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"
"Startup" = "%Documents and Settings%\%current user%\Start Menu\Programs\Startup"

[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\Explorer\Shell Folders]
"CommonMusic" = "%Documents and Settings%\All Users\Documents\My Music"
"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\CurrentVersion\Internet Settings\Zones\3]
"1400" = "0"

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

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

"Start Menu" = "%Documents and Settings%\%current user%\Start Menu"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"CommonVideo" = "%Documents and Settings%\All Users\Documents\My Videos"
"CommonPictures" = "%Documents and Settings%\All Users\Documents\My Pictures"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "BB 8D 80 37 8B 6F 87 E2 57 CB A7 19 79 8D A0 10"

[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\ShellNoRoam\MUICache\%System%]
"reg.exe" = "Registry Console Tool"

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

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"

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]
"NvCplDaemonTool" = "rundll32.exe %System%\tloadmA2.dll,_IWMPEvents"

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 web-nodes that bypassing the proxy to the Intranet Zone:

"ProxyBypass" = "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:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"NvCplDaemonTool" = "rundll32.exe C:\DOCUME~1\"%CurrentUserName%"\tloadmA2.dll,_IWMPEvents"

The process rundll32.exe:1392 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "78 B4 EA 70 AB 1C 68 A6 D8 CD C2 70 CF A4 14 9C"

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

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

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

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

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

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

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

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

[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\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

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

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3]
"1400" = "0"

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

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

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

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]
"NvCplDaemonTool" = "rundll32.exe %System%\tloadmA2.dll,_IWMPEvents"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"NvCplDaemonTool" = "rundll32.exe C:\DOCUME~1\"%CurrentUserName%"\tloadmA2.dll,_IWMPEvents"

Dropped PE files

MD5	File path
de0ec9a8891de7609adfe77e399fe57d	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\1.tmp
de0ec9a8891de7609adfe77e399fe57d	c:\Documents and Settings\"%CurrentUserName%"\Start Menu\Programs\Startup\scancdiskv48.dll
de0ec9a8891de7609adfe77e399fe57d	c:\Documents and Settings\"%CurrentUserName%"\tloadmA2.dll
de0ec9a8891de7609adfe77e399fe57d	c:\WINDOWS\system32\tloadmA2.dll

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:1988
Delete the original Trojan file.
Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Local Settings\Temp\1.tmp (3802 bytes)
%Documents and Settings%\%current user%\Start Menu\Programs\Startup\scandisk.lnk (685 bytes)
%System%\tloadmA2.dll (3802 bytes)
%Documents and Settings%\%current user%\tloadmA2.dll (3802 bytes)
Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"NvCplDaemonTool" = "rundll32.exe %System%\tloadmA2.dll,_IWMPEvents"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"NvCplDaemonTool" = "rundll32.exe C:\DOCUME~1\"%CurrentUserName%"\tloadmA2.dll,_IWMPEvents"
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: Microsoft Corporation
Product Name: Microsoft Multimedia Controls
Product Version: 6.03.01.0146
Legal Copyright: Copyright (c) Microsoft Corp. 1997-1999
Legal Trademarks:
Original Filename:
Internal Name:
File Version: 6.03.01.0146
File Description: Microsoft Multimedia Controls Utilities
Comments:
Language: English (United States)

Company Name: Microsoft CorporationProduct Name: Microsoft Multimedia ControlsProduct Version: 6.03.01.0146Legal Copyright: Copyright (c) Microsoft Corp. 1997-1999Legal Trademarks: Original Filename: Internal Name: File Version: 6.03.01.0146File Description: Microsoft Multimedia Controls UtilitiesComments: Language: English (United States)

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	14744	16384	4.09011	3526c24b57b6f35d04c89a0b9e9543fe
.data	20480	958804	962560	4.91019	dfff4301c0f24da8f50ebb434c86a7f7
.data1	983040	1	4096	0.002275	1e80597e0cdc0cd088dbae224f814eea
.data2	987136	1	4096	0.002275	000dc554a56119ad12d5c983df491cfc
.rsrc	991232	840	4096	0.624802	bcf8a50d29ffe32f1abd3e04ee30cfcf
.reloc	995328	1764	4096	0.482917	a1c01130251ad6f4963199805b7f7ba3

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

URL	IP
hxxp://google.com/	173.194.113.192

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

GET / HTTP/1.0

Host: google.com

User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0)

Connection: close

HTTP/1.0 302 Found

Cache-Control: private

Content-Type: text/html; charset=UTF-8

Location: hXXp://VVV.google.com.ua/?gfe_rd=cr&ei=M5hgV4-BCPCEygWFqrqoCw

Content-Length: 262

Date: Tue, 14 Jun 2016 23:50:11 GMT

<HTML><HEAD><meta http-equiv="content-type" content="text/html;charset=utf-8">.<TITLE>302 Moved</TITLE></HEAD><BODY>.<H1>302 Moved</H1>.The document has moved.<A HREF="hXXp://VVV.google.com.ua/?gfe_rd=cr&ei=M5hgV4-BCPCEygWFqrqoCw">here</A>...</BODY></HTML>....

Map

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

Strings from Dumps

rundll32.exe_1392:

.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