Analysis by: Augusto II Remillano
ALIASES:

Trojan-Downloader.VBA.Agent (Ikarus), HEUR/Macro.Downloader.PAU.Gen (Antivir)

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

However, as of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size: 519,680 bytes
File Type: DOC
Memory Resident: No
Initial Samples Received Date: 30 Jul 2018

Arrival Details

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

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

Download Routine

This Trojan saves the files it downloads using the following names:

  • %All Users Profile%\KhzCUf.exe

(Note: %All Users Profile% is the common user's profile folder, which is usually C:\Documents and Settings\All Users on Windows 2000, XP, and Server 2003, or C:\ProgramData on Windows Vista, 7, and 8. )

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://{BLOCKED}d.ba/typo3/classes/newtest.exe

However, as of this writing, the said sites are inaccessible.