General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    241229-zwd8ssxlcs

  • MD5

    e34ce1e492d0a57ec3997512039793c9

  • SHA1

    d3ec7bfd2d7f676adede7195db6c1a679d5c06a8

  • SHA256

    e843601fcf7ac35515d0478e9ffa7e989826405389ada46b4627e26bc4d1fdfe

  • SHA512

    00cd5d896efaaba657f3d5e917d43ff4360bb3e5d2779abf8b468b8526fed8e5ae22285f6e42c2c9f2e6155cde3049e87a855a5405be2cfaf23561acad96a7fe

  • SSDEEP

    49152:yvyI22SsaNYfdPBldt698dBcjHNzRJ6tbR3LoGdvTHHB72eh2NT:yvf22SsaNYfdPBldt6+dBcjHNzRJ6/

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.1.104:4782

Mutex

0b53b5f1-6e56-4e94-bd1e-c8d3128b0755

Attributes
  • encryption_key

    06B92BA0BB279356BE72C22FE42BED732D4D3DF7

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    HD Audio Background Processor

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      e34ce1e492d0a57ec3997512039793c9

    • SHA1

      d3ec7bfd2d7f676adede7195db6c1a679d5c06a8

    • SHA256

      e843601fcf7ac35515d0478e9ffa7e989826405389ada46b4627e26bc4d1fdfe

    • SHA512

      00cd5d896efaaba657f3d5e917d43ff4360bb3e5d2779abf8b468b8526fed8e5ae22285f6e42c2c9f2e6155cde3049e87a855a5405be2cfaf23561acad96a7fe

    • SSDEEP

      49152:yvyI22SsaNYfdPBldt698dBcjHNzRJ6tbR3LoGdvTHHB72eh2NT:yvf22SsaNYfdPBldt6+dBcjHNzRJ6/

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks