General

  • Target

    PC_Booster.exe

  • Size

    3.1MB

  • Sample

    241120-h5ykcstakc

  • MD5

    81d8571af28e42e2bbe60b5118173da6

  • SHA1

    a826876a268bb7ebcf67b050707ff8a8e05ee6ef

  • SHA256

    5fccda50065844a012e1425d3d9d60b608c6d5dc07514d32d04b1c55a1eade36

  • SHA512

    b6f2dc77b046e4577a996495a6a5589f6ea263e61570ff362f2fb3386dc2b5c80c63ee6ab0678b36e1e11f7a3e46a9c5ed2cf33a5fb523e6afaed0f5a38da347

  • SSDEEP

    49152:KvyI22SsaNYfdPBldt698dBcjHF9rwmCPLoGZB3voTHHB72eh2NT:Kvf22SsaNYfdPBldt6+dBcjHF9rQ

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.1.18:4782

Mutex

4d099eab-30e3-4c3b-bf50-bf77e2e70e0f

Attributes
  • encryption_key

    04E6B8EB331AA0F74187E430ADEDBC1B79B631E4

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      PC_Booster.exe

    • Size

      3.1MB

    • MD5

      81d8571af28e42e2bbe60b5118173da6

    • SHA1

      a826876a268bb7ebcf67b050707ff8a8e05ee6ef

    • SHA256

      5fccda50065844a012e1425d3d9d60b608c6d5dc07514d32d04b1c55a1eade36

    • SHA512

      b6f2dc77b046e4577a996495a6a5589f6ea263e61570ff362f2fb3386dc2b5c80c63ee6ab0678b36e1e11f7a3e46a9c5ed2cf33a5fb523e6afaed0f5a38da347

    • SSDEEP

      49152:KvyI22SsaNYfdPBldt698dBcjHF9rwmCPLoGZB3voTHHB72eh2NT:Kvf22SsaNYfdPBldt6+dBcjHF9rQ

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Executes dropped EXE

    • 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