General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    240407-v4cmqahh4z

  • MD5

    112d7a3909df08a3ecd0732f88614c52

  • SHA1

    7b6f9eb54ed7738db1d39254d1d607357eed7963

  • SHA256

    caaa4f07cc33969ee8a2ff3dbf28c52a8cb78ea651950f3032f12b35a2eac9b8

  • SHA512

    6b33a7c4d7fcb941ecefa03a6f7e3152a4e2fa7541a88d8cdad22f6a63c99c1ac5a5f8a004aab594e96d94b0c05349eb27dfaab97ed9cdf9c3d58dffffbeab02

  • SSDEEP

    49152:Kv1t62XlaSFNWPjljiFa2RoUYIcdDckCBpLoGrRbTHHB72eh2NT:KvH62XlaSFNWPjljiFXRoUYIcdDu5

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

127.0.0.1:4782

Mutex

755f883f-4d58-4349-bc9e-f21c4e163b6f

Attributes
  • encryption_key

    EE65D8F2E429F4900E3A17963595716D863A2455

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      112d7a3909df08a3ecd0732f88614c52

    • SHA1

      7b6f9eb54ed7738db1d39254d1d607357eed7963

    • SHA256

      caaa4f07cc33969ee8a2ff3dbf28c52a8cb78ea651950f3032f12b35a2eac9b8

    • SHA512

      6b33a7c4d7fcb941ecefa03a6f7e3152a4e2fa7541a88d8cdad22f6a63c99c1ac5a5f8a004aab594e96d94b0c05349eb27dfaab97ed9cdf9c3d58dffffbeab02

    • SSDEEP

      49152:Kv1t62XlaSFNWPjljiFa2RoUYIcdDckCBpLoGrRbTHHB72eh2NT:KvH62XlaSFNWPjljiFXRoUYIcdDu5

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks