General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    240407-v8mcqaaa6t

  • MD5

    2aebe66b019df4695fe7218875c93856

  • SHA1

    646890986ef0bba4eed6b659d56704d09e414562

  • SHA256

    ea3003e00c6e653fad8844d4677ceef7b7b6e499939ed765a49df3898ddf3c45

  • SHA512

    7391db69d5cc021dee50b2af12d11b30a4225f46b4469d10eff4e659c71c298233dea01e1e626d35d49b9490ef3dcaa1570b4448859d9d04ac0270b71c84bddc

  • SSDEEP

    49152:WvbI22SsaNYfdPBldt698dBcjHHyxNESEXk/ijLoGdAwXTHHB72eh2NT:Wvk22SsaNYfdPBldt6+dBcjHSxavD

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

      2aebe66b019df4695fe7218875c93856

    • SHA1

      646890986ef0bba4eed6b659d56704d09e414562

    • SHA256

      ea3003e00c6e653fad8844d4677ceef7b7b6e499939ed765a49df3898ddf3c45

    • SHA512

      7391db69d5cc021dee50b2af12d11b30a4225f46b4469d10eff4e659c71c298233dea01e1e626d35d49b9490ef3dcaa1570b4448859d9d04ac0270b71c84bddc

    • SSDEEP

      49152:WvbI22SsaNYfdPBldt698dBcjHHyxNESEXk/ijLoGdAwXTHHB72eh2NT:Wvk22SsaNYfdPBldt6+dBcjHSxavD

    • 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