Analysis by: Mohammed Malubay
ALIASES:

VBA/TrojanDownloader.Agent.RGB trojan(NOD32); Trojan-Downloader.VBA.Emotet(IKARUS);

 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 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: 254,377 bytes
File Type: DOC
Memory Resident: No
Initial Samples Received Date: 16 Jan 2020

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.

Installation

This Trojan adds the following processes:

  • Powershell -w hidden -en {base-64 encoded command}

Download Routine

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

  • %User Profile%\121.exe

(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name} on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://{BLOCKED}ique.org/-/wv4y-6w5-3697/
  • https://wlskdjfsa.{BLOCKED}ostapp.com/wp-admin/VbuFbbG/
  • http://blog.{BLOCKED}avarici.com/wp-includes/fQbmzw/
  • http://{BLOCKED}n.com/wp-admin/be19e6-le6fjr-256/
  • http://bbv.{BLOCKED}ier.media/wp-includes/runyp-zsv8cv-3508006/