Resubmissions

15/04/2026, 23:38

260415-3mwy2aev5y10

15/04/2026, 23:35

260415-3k8vtaet811

18/10/2024, 03:36

241018-d5xkvaxgkk

01/07/2024, 16:44

240701-t87g8aserl10

General

  • Target
    SeroXen.rar
  • Size 7.4MB
  • Sample260415-3mwy2aev5y
  • SHA256 43b56573aa46b0a5c526e41ef58f0e902074181622a7b7508fa97c447b8afcc9
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • quasar

Version
  • 15.5.0

Botnet
  • SeroXen

C2
  • 147.185.221.20:49485

Mutex
  • QSR_MUTEX_rzhQPLl57DqbMvbZp9

Attributes
  • encryption_key

    M2nw0PLpJxuyZQLyQ14p

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    $sxr-Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      SeroXen.rar
    • Size 7.4MB
    • SHA256 43b56573aa46b0a5c526e41ef58f0e902074181622a7b7508fa97c447b8afcc9
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects DonutLoader

    • Family: DonutLoader

      DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Executes dropped EXE

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

MITRE ATT&CK Enterprise v16

Tasks