General

  • Target

    intro.avi.exe

  • Size

    348KB

  • Sample

    250102-kaqblswjgj

  • MD5

    d219d94cabaa00e5abffc599bdeef75d

  • SHA1

    123e511de20beab7bfa2bea5c2206422bc5e8241

  • SHA256

    3cc847687e60acda504fc35577f36eedd0bca559a4de915d6dd88db9178567d4

  • SHA512

    82dbb2484e3e42fcd6c3914da4ebfc540e135b8b57bf240a28a3e9fceb6409d8a9b1f9ca9b4bf545d05a10fd9b1672a2a6a05d963aaa33f4905e74cc1c068734

  • SSDEEP

    6144:0I6bPXhLApfpMMoDMWZVGZV+RzbLirAeMB2Wku:FmhApypOrAeMB2/u

Malware Config

Extracted

Family

quasar

Version

1.1.0.0

Botnet

User

C2

erbaevbann3.ddns.net:4444

Mutex

xTSR_MUTEX_tDOmSpZY0vhNMbdmkR

Attributes
  • encryption_key

    Uz3u2uI4Ld2N91oq93Eb

  • install_name

    systemware.exe

  • log_directory

    logs

  • reconnect_delay

    3000

  • startup_key

    System Ware

  • subdirectory

    system

Targets

    • Target

      intro.avi.exe

    • Size

      348KB

    • MD5

      d219d94cabaa00e5abffc599bdeef75d

    • SHA1

      123e511de20beab7bfa2bea5c2206422bc5e8241

    • SHA256

      3cc847687e60acda504fc35577f36eedd0bca559a4de915d6dd88db9178567d4

    • SHA512

      82dbb2484e3e42fcd6c3914da4ebfc540e135b8b57bf240a28a3e9fceb6409d8a9b1f9ca9b4bf545d05a10fd9b1672a2a6a05d963aaa33f4905e74cc1c068734

    • SSDEEP

      6144:0I6bPXhLApfpMMoDMWZVGZV+RzbLirAeMB2Wku:FmhApypOrAeMB2/u

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • 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