ThreatExpert Report: Win32.VBCrypt

Submission Summary:

Submission details:

Submission received: 17 August 2012, 04:08:32
Processing time: 8 min 22 sec
Submitted sample:

File MD5: 0xFC8DE35B65EF6636BF6353905B80AB62
File SHA-1: 0xFDB0C9EA3F154ACC6C278634334D6794F10F5F3D
Filesize: 12,288 bytes

Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.

Technical Details:

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash
1	%AppData%\cudr.exe %AppData%\msfragger.exe	125 bytes	MD5: 0x7C5F5A68051F6B0C0E9A2AD33C40D415 SHA-1: 0x120865765927A61AF83F02B83DC297EEDE61EC41
2	[file and pathname of the sample #1]	12,288 bytes	MD5: 0xFC8DE35B65EF6636BF6353905B80AB62 SHA-1: 0xFDB0C9EA3F154ACC6C278634334D6794F10F5F3D
3	%Windir%\Temp\scsA.tmp	2,686 bytes	MD5: 0x4A587187D760161311010B03417B3C3F SHA-1: 0x863BBF5F7F4114A1307C6BAD5DD89224D511FED5

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.
%Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.

Memory Modifications

There was a new process created in the system:

Process Name	Process Filename	Main Module Size
[filename of the sample #1]	[file and pathname of the sample #1]	16,384 bytes

There were new memory pages created in the address space of the system process(es):

Process Name	Process Filename	Allocated Size
ntvdm.exe	%System%\ntvdm.exe	577,536 bytes
ntvdm.exe	%System%\ntvdm.exe	577,536 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).

Other details

The following Host Name was requested from a host database:

192.5.5.241

There was registered attempt to establish connection with the remote host. The connection details are:

Remote Host	Port Number
192.5.5.241	1033

The following Internet Connection was established:

Server Name	Server Port	Connect as User	Connection Password
killertrumps.com	80	(null)	(null)

The following GET requests were made:

chrome.exe
firefox.exe

Downloaded File Summary:

Download details:

Download retrieved: 17 August 2012 04:19:48
Processing time: 7 min 42 sec
Downloaded sample:

File MD5: 0xD348CBC24F478B0E93184C3850C0E90B
File SHA-1: 0x14A2490FC4D7401DE37C964BF5CBBFF3C82092DC
Filesize: 3,858,432 bytes
Alias: Win32.VBCrypt [Ikarus]

Technical Details:

The new window was created, as shown below:

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File System Modifications

The following file was created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	[file and pathname of the sample #1]	3,858,432 bytes	MD5: 0xD348CBC24F478B0E93184C3850C0E90B SHA-1: 0x14A2490FC4D7401DE37C964BF5CBBFF3C82092DC	Win32.VBCrypt [Ikarus]

Memory Modifications

There was a new process created in the system:

Process Name	Process Filename	Main Module Size
[filename of the sample #1]	[file and pathname of the sample #1]	3,870,720 bytes

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