ThreatExpert Report: Mal/VB-ABH, TrojanDownloader:Win32/Banload.ANE

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Submission Summary:

Submission details:

Submission received: 4 August 2012, 15:29:18
Processing time: 8 min 49 sec
Submitted sample:

File MD5: 0xC832F07B56093175F7497E81093AB9CD
File SHA-1: 0x6A611226EE27FB0C1340FBFC1201B40F62DD43A0
Filesize: 24,576 bytes
Alias:

Mal/VB-ABH [Sophos]
TrojanDownloader:Win32/Banload.ANE [Microsoft]

Summary of the findings:

What's been found	Severity Level
Produces outbound traffic.

Technical Details:

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%Temp%\QKaHc2n3qJvemL5M8qwthyB2o14kN	3 bytes	MD5: 0xA5EA0AD9260B1550A14CC58D2C39B03D SHA-1: 0xF0AEDF295071ED34AB8C6A7692223D22B6A19841	(not available)
2	%System%\GbHIex.dll	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709	(not available)
3	[file and pathname of the sample #1]	24,576 bytes	MD5: 0xC832F07B56093175F7497E81093AB9CD SHA-1: 0x6A611226EE27FB0C1340FBFC1201B40F62DD43A0	Mal/VB-ABH [Sophos] TrojanDownloader:Win32/Banload.ANE [Microsoft]

Notes:

%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).
%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).

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]	28,672 bytes

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\PreApproved
HKEY_LOCAL_MACHINE\SOFTWARE\Description
HKEY_LOCAL_MACHINE\SOFTWARE\Description\Microsoft
HKEY_LOCAL_MACHINE\SOFTWARE\Description\Microsoft\Rpc
HKEY_LOCAL_MACHINE\SOFTWARE\Description\Microsoft\Rpc\UuidTemporaryData
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Ext
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Ext\CLSID

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects]

NoExplorer = 0x00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system]

EnableLUA = 0x00000000

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\PreApproved]

(Default) = ""

[HKEY_LOCAL_MACHINE\SOFTWARE\Description\Microsoft\Rpc\UuidTemporaryData]

NetworkAddress = B9 59 4B 72 56 52
NetworkAddressLocal = 0x00000001

[HKEY_CURRENT_USER\AppEvents\Schemes\Apps\Explorer\Navigating]

.Default = ""
.Current = ""

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Ext\CLSID]

(Default) = "1"

Other details

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

Australia

The following Host Name was requested from a host database:

appdevfs.cxajophltglu.ap-northeast-1.rds.amazonaws.com

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

Remote Host	Port Number
appdevfs.cxajophltglu.ap-northeast-1.rds.amazonaws.com	1433

Outbound traffic (potentially malicious)

There was an outbound traffic produced on port 1433:

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