ThreatExpert Report: Mal/EncPk-ZC

Submission Summary:

Submission details:

Submission received: 23 October 2012, 18:53:24
Processing time: 7 min 56 sec
Submitted sample:

File MD5: 0x4C3D0B2B36957B05327471A5C2724FAF
File SHA-1: 0x9158F1D4898178E549868D44966579C1F2D6C9F4
Filesize: 399,448 bytes

Summary of the findings:

What's been found	Severity Level
Creates a startup registry entry.

Technical Details:

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%AppData%\Ziatuh\alnoaz.exe	399,448 bytes	MD5: 0x1A2288D8D520B329B3C025F600E91F4B SHA-1: 0xE749ADFBC9EC376AB55C21F0D1F5A6DC918655C6	Mal/EncPk-ZC [Sophos]
2	%AppData%\axunri.yms	1,009 bytes	MD5: 0x64C576DD0F537DA09141EA7C7BF3771D SHA-1: 0xD5DD5D989E0E0E438CD0EF6EB04D6E2CEC875A38	(not available)
3	%Temp%\tmp2cd50588.bat	168 bytes	MD5: 0x339A4D2392AABCC06E1FB376496F89B7 SHA-1: 0x3622590C4FAC273FEB4C241EDE761A374C12A68A	(not available)
4	[file and pathname of the sample #1]	399,448 bytes	MD5: 0x4C3D0B2B36957B05327471A5C2724FAF SHA-1: 0x9158F1D4898178E549868D44966579C1F2D6C9F4	(not available)

Notes:

%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.
%Temp% is a variable that refers to the temporary folder in the short path form. By default, this is C:\Documents and Settings\[UserName]\Local Settings\Temp\ (Windows NT/2000/XP).

The following directory was created:

%AppData%\Ziatuh

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]	286,720 bytes
alnoaz.exe	%AppData%\Ziatuh\alnoaz.exe	286,720 bytes

There was a new memory page created in the address space of the system process(es):

Process Name	Process Filename	Allocated Size
cmd.exe	%System%\cmd.exe	311,296 bytes

Notes:

%System% is a variable that refers to the System folder. By default, this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).

Registry Modifications

The following Registry Key was created:

HKEY_CURRENT_USER\Software\Microsoft\Qubyq

The newly created Registry Values are:

[HKEY_CURRENT_USER\Identities]

Identity Login = 0x00098053

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

{3DFA1AE4-115C-AD7B-A6BA-A75086AF8442} = ""%AppData%\Ziatuh\alnoaz.exe""

so that alnoaz.exe runs every time Windows starts

[HKEY_CURRENT_USER\Software\Microsoft\Qubyq]

2ghce542 = "v84/xOWVDQGogzNdh3k0N6qSJHf2Kw=="
2d0b46bg = 94 CE 4A C4
1d0ha5a0 = "zKdKxJDgYwH3gwFd"

Other details

To mark the presence in the system, the following Mutex object was created:

Local\{FA4803F7-084F-6AC9-A6BA-A75086AF8442}

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