Analysis by: Rhena Inocencio

ALIASES:

TrojanDownloader:O97M/Donoff (Microsoft), VBA/TrojanDownloader.Agent.BAK trojan (ESET), WM/TrojanDownloader.7BA9!tr (Fortinet)

 PLATFORM:

Windows

 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 as an attachment to email messages spammed by other malware/grayware or malicious users.

  TECHNICAL DETAILS

File Size: 234,419 bytes
File Type: DOC
Initial Samples Received Date: 03 May 2016

Arrival Details

This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

Dropping Routine

This Trojan drops the following files:

  • %User Temp%\{random number}.vbs - connects to the following possibly malicious URL:
    • http://tiptop-opmaat.nl/tm.jpg?Uyr1geHTb=5