General

  • Target

    https://github.com/Hello529648/github-dont-ban-its-for-test.git

  • Sample

    250122-ve8nvswke1

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Office04

C2

Client2:4782

Mutex

QSR_MUTEX_RH6ctD844WCagY5nuM

Attributes
  • encryption_key

    nyassPD33yuypk3HMAZZ

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      https://github.com/Hello529648/github-dont-ban-its-for-test.git

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • 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.

MITRE ATT&CK Enterprise v15

Tasks