Analysis by: Maria Emreen Viray
 ALIASES:

TrojanDownloader:O97M/Qakbot.STC!MTB (MICROSOFT)

 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.

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

  TECHNICAL DETAILS

Tipo de compactação: 555,520 bytes
Tipo de arquivo: XLS
Residente na memória: No
Data de recebimento das amostras iniciais: 21 Oct 2021

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:

  • regsvr32 -silent ..\Celod.wac
  • regsvr32 -silent ..\Celod.wac1
  • regsvr32 -silent ..\Celod.wac2

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://{BLOCKED}.{BLOCKED}.37.236/44490.{Random Numbers}.dat
  • http://{BLOCKED}.{BLOCKED}.90.73/44490.{Random Numbers}.dat
  • http://{BLOCKED}.{BLOCKED}.191.16/44490.{Random Numbers}.dat

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