ThreatExpert Report: Suspicious.MH690, Mal/EncPk-BW, Packed/Upack

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Submission Summary:

Submission details:

Submission received: 13 September 2012, 11:44:47
Processing time: 7 min 53 sec
Submitted sample:

File MD5: 0x0AB7E4964C551CE2339B5F362F30185F
File SHA-1: 0x6B792B8EF264277548B9E2EAB5B3EED29DC2A89E
Filesize: 186,784 bytes
Alias & packer info:

Suspicious.MH690 [Symantec]
Mal/EncPk-BW [Sophos]
Packed/Upack [AhnLab]
packed with: UPack [Kaspersky Lab]

Technical Details:

The new window was created, as shown below:

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File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%AppData%\rcs.jpg	61,522 bytes	MD5: 0x49A080CCEB7AEE562515EAEE8C2D5BD5 SHA-1: 0xCE3D2C9A84738789EF4C559CAD6E3452333D77E5	(not available)
2	c:\Settings\search.cmd [file and pathname of the sample #1]	186,784 bytes	MD5: 0x0AB7E4964C551CE2339B5F362F30185F SHA-1: 0x6B792B8EF264277548B9E2EAB5B3EED29DC2A89E	Suspicious.MH690 [Symantec] Mal/EncPk-BW [Sophos] Packed/Upack [AhnLab] packed with UPack [Kaspersky Lab]

Note:

%AppData% is a variable that refers to the file system directory that serves as a common repository for application-specific data. A typical path is C:\Documents and Settings\[UserName]\Application Data.

The following directory was created:

c:\Settings

Memory Modifications

There were new processes created in the system:

Process Name	Process Filename	Main Module Size
[filename of the sample #1]	[file and pathname of the sample #1]	724,992 bytes
search.cmd	C:\Settings\search.cmd	724,992 bytes

Registry Modifications

The newly created Registry Value is:

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]

Search = "C:\Settings\search.cmd"

so that search.cmd runs every time Windows starts

Other details

Analysis of the file resources indicate the following possible country of origin:

Russian Federation

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