General

  • Target

    https://cdn.discordapp.com/attachments/1182130099114496000/1269968026564825119/Bootstrapper.rar?ex=66b4a064&is=66b34ee4&hm=c69a7aeaba03d8368455a38a1a6e2745f2a4de2a5e824166aee38b89d378c712&

  • Sample

    240807-ph62jssbmh

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

wefdwef-34180.portmap.host:34180

Mutex

c4be1726-3f86-4f80-bc7c-0779b06ffeeb

Attributes
  • encryption_key

    97BF1FDCF446A7218FA05296FD8D8F0C41A6B1E7

  • install_name

    Bootstrapper.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Spotify

  • subdirectory

    system32

Targets

    • Target

      https://cdn.discordapp.com/attachments/1182130099114496000/1269968026564825119/Bootstrapper.rar?ex=66b4a064&is=66b34ee4&hm=c69a7aeaba03d8368455a38a1a6e2745f2a4de2a5e824166aee38b89d378c712&

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Executes dropped EXE

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks