TROJ_MDROP.ZTBH

September 22, 2014
 Analysis by: RonJay Kristoffer Caragay
 ALIASES:

Exploit.CVE-2012-0158 (AVG); Exploit.MSWord.CVE-2012-0158.du (Kaspersky); Exploit-FVJ!CVE2012-0158 (McAfee); Exploit.CVE-2012-0158.Gen (BitDefender); Troj/DocDrop-BE (Sophos);

 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

  TECHNICAL DETAILS

File Size:

209,456 bytes

File Type:

DOC, DOCX

Initial Samples Received Date:

22 Sep 2014

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Other System Modifications

This Trojan modifies the following file(s):

  • {malware path and filename}

Dropping Routine

This Trojan drops the following files:

  • %User Temp%\{malware name and extension}
  • %User Temp%\word.exe

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)

It takes advantage of the following software vulnerabilities to drop malicious files: