Analysis by: Francesca Villasanta
ALIASES:

HEUR:Trojan.MSOffice.Emotet.gen (KASPERSKY)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel: Dropped by other malware, Downloaded from the Internet

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.

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

  TECHNICAL DETAILS

File Size: 36,495 bytes
File Type: Other
Memory Resident: No
Initial Samples Received Date: 04 Apr 2023
Payload: Drops files, Connects to URLs/IPs

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 drops the following files:

  • %User Profile%\xdha.ocx

(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).)

It adds the following processes:

  • "%Windows%\SysWow64\regsvr32.exe" -s ..\xdha.ocx

(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)

Other Details

This Trojan connects to the following possibly malicious URL:

  • https://{BLOCKED}ub.com/wp-content/uploads/8ST56kZvvQ/
  • http://blog.{BLOCKED}t.com:443
  • http://{BLOCKED}ran.com:443
  • https://hindi.{BLOCKED}mirror.com/wp-includes/NfqhqWd1AfATg6PH3MV/
  • http://{BLOCKED}rra.com:443
  • http://{BLOCKED}rtivf.com:443
  • http://{BLOCKED}solicitors.com:443

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