General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    231122-tnmx3sde92

  • MD5

    7bee59ebccfc55dc14216556ef98fdcc

  • SHA1

    8e7ca9dde66efc45aa764c321dc56cd178f09699

  • SHA256

    556c3d399ad1ef6fd644197537d517582f64aeb18172ff5095e1e01eb3bf0d9c

  • SHA512

    e861cadfe4e4dfe188a49b9262068373425525055c1bb0270558f2735e734223f00c6c1288646773124dfbd09ce30dc69943c89d15fa58657ff25b8b0b062f34

  • SSDEEP

    49152:PvyI22SsaNYfdPBldt698dBcjHJxOEMkHk/JxGoGd7sTHHB72eh2NT:Pvf22SsaNYfdPBldt6+dBcjHJxGkL

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

myquasarhost.ddns.net:4782

Mutex

4820c051-6f63-4e0a-8e5b-025be7e4893b

Attributes
  • encryption_key

    C8A35AC023CEAD5AB85C1FB6B45B33B43A6B247F

  • install_name

    word.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      7bee59ebccfc55dc14216556ef98fdcc

    • SHA1

      8e7ca9dde66efc45aa764c321dc56cd178f09699

    • SHA256

      556c3d399ad1ef6fd644197537d517582f64aeb18172ff5095e1e01eb3bf0d9c

    • SHA512

      e861cadfe4e4dfe188a49b9262068373425525055c1bb0270558f2735e734223f00c6c1288646773124dfbd09ce30dc69943c89d15fa58657ff25b8b0b062f34

    • SSDEEP

      49152:PvyI22SsaNYfdPBldt698dBcjHJxOEMkHk/JxGoGd7sTHHB72eh2NT:Pvf22SsaNYfdPBldt6+dBcjHJxGkL

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks