General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    240407-v71hysad45

  • MD5

    3169d3f34b2ce9d94a1bcb0e9ae48600

  • SHA1

    ffec6c71b6c2213be5c4745807de1aedd6a90f20

  • SHA256

    e30519495fc30aca7d914b0628fb21dd89f482856a9bbc70c62d2dbcf18d11b7

  • SHA512

    468f5db3cdf3a7a2870a6f78956f80b494520c2d8a589895794f4a5d7c7ea9feb262b7f5466933e8995eb2ddd8e92b72d7fe61f9afa4d89681e24840fc729860

  • SSDEEP

    49152:WvbI22SsaNYfdPBldt698dBcjHp7qx57Gek/DBoGifUaTHHB72eh2NT:Wvk22SsaNYfdPBldt6+dBcjHxqE

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

x.tcp.ngrok.io:16096

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

      3169d3f34b2ce9d94a1bcb0e9ae48600

    • SHA1

      ffec6c71b6c2213be5c4745807de1aedd6a90f20

    • SHA256

      e30519495fc30aca7d914b0628fb21dd89f482856a9bbc70c62d2dbcf18d11b7

    • SHA512

      468f5db3cdf3a7a2870a6f78956f80b494520c2d8a589895794f4a5d7c7ea9feb262b7f5466933e8995eb2ddd8e92b72d7fe61f9afa4d89681e24840fc729860

    • SSDEEP

      49152:WvbI22SsaNYfdPBldt698dBcjHp7qx57Gek/DBoGifUaTHHB72eh2NT:Wvk22SsaNYfdPBldt6+dBcjHxqE

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Executes dropped EXE

    • Legitimate hosting services abused for malware hosting/C2

MITRE ATT&CK Enterprise v15

Tasks