General

  • Target

    398d98b126f3924b8618fdbf11d52aad45a74cb2b70f8efa38592b8cb1aaadb4

  • Size

    144KB

  • Sample

    230211-bwp4asaa3x

  • MD5

    0cea18b50592fb0573908dd2654f1784

  • SHA1

    2bbd52b164055b5e33bab2461c2aa3ca8c555c0d

  • SHA256

    398d98b126f3924b8618fdbf11d52aad45a74cb2b70f8efa38592b8cb1aaadb4

  • SHA512

    f717746632b394d9f7afbae4a88bca22d6b51d0c21f07798564d1ea7466a545a075237f44f1951355e49d697c751756ccdad19061b52cfcbefd196a50aa2a20e

  • SSDEEP

    3072:TWT5ABV0BtcyOUXJTkPj/JitMh+byG25O6ZDuxKIgFDz7V:iTeBV03cyOUmrgWJO6ZSxKIgp7V

Malware Config

Extracted

Family

quasar

Version

1.4.0.0

Botnet

Office04

C2

spoofer.sytes.net:4782

Mutex

Xt4orhlt3APwEULq83

Attributes
  • encryption_key

    lm9tqqmq7KePP7IJgOau

  • install_name

    svchost.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Cortana

  • subdirectory

    Microsoft

Targets

    • Target

      398d98b126f3924b8618fdbf11d52aad45a74cb2b70f8efa38592b8cb1aaadb4

    • Size

      144KB

    • MD5

      0cea18b50592fb0573908dd2654f1784

    • SHA1

      2bbd52b164055b5e33bab2461c2aa3ca8c555c0d

    • SHA256

      398d98b126f3924b8618fdbf11d52aad45a74cb2b70f8efa38592b8cb1aaadb4

    • SHA512

      f717746632b394d9f7afbae4a88bca22d6b51d0c21f07798564d1ea7466a545a075237f44f1951355e49d697c751756ccdad19061b52cfcbefd196a50aa2a20e

    • SSDEEP

      3072:TWT5ABV0BtcyOUXJTkPj/JitMh+byG25O6ZDuxKIgFDz7V:iTeBV03cyOUmrgWJO6ZSxKIgp7V

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

    • 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 v6

Tasks