General

  • Target
    Pix_id8680.js
  • Size 18KB
  • Sample240724-bb5m9aydpm
  • SHA256 e38b8f0ae53c24d62f7b0580891be2bfc4a3c855dcf2ee01fc64c0439777bdc9
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Language
  • ps1

Source
URLs
  • ps1.dropper

    https://pastebin.com/raw/gk5zDwdG

  • exe.dropper

    https://drive.google.com/uc?export=download&id=

Extracted

Family
  • quasar

Version
  • 2.8.0.1

Botnet
  • Recomeco

C2
  • 15.235.61.212:5552

Mutex
  • rQp3LFG3Jkv7ob8MOH

Attributes
  • encryption_key

    VYA1GjjnuckdAWisXsLT

  • install_name

    Venom.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Venom Client Startup

Targets

    • Target
      Pix_id8680.js
    • Size 18KB
    • SHA256 e38b8f0ae53c24d62f7b0580891be2bfc4a3c855dcf2ee01fc64c0439777bdc9
    • MD5 SHA1 SHA512 SSDEEP
    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Blocklisted process makes network request

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Adds Run key to start application

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks