General

  • Target

    40bc721618bfa9595331b7b7bb3a5955be4d3c7e9ca58a063769e16c5b2e605a

  • Size

    4.7MB

  • Sample

    241022-y94vyavdkl

  • MD5

    280ad7fce13d25ab4190070bbae22e12

  • SHA1

    474920d6b01a092845815aec815519e7792444ce

  • SHA256

    40bc721618bfa9595331b7b7bb3a5955be4d3c7e9ca58a063769e16c5b2e605a

  • SHA512

    53d58a7814ccad7a23cb466e56ff2e1f016089fdc5c2bb54d3ccb61ba77475538388a5236b24db07f2ceaca6c39eb3911e7915d13be15f633388cf1bb7b77d5a

  • SSDEEP

    98304:yZoSzXIZ7Svr22SsaNYfdPBldt6+dBcjHtKRJ6BLIbzZhIbzZY:Gw7UM7jGIUAK

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

mx5.deitie.asia:4495

Mutex

ebbf737a-dddd-43dd-9b0a-74831302455d

Attributes
  • encryption_key

    F8516D89A1DFD78BD8FF575BBC3AE828B47FF0E1

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      40bc721618bfa9595331b7b7bb3a5955be4d3c7e9ca58a063769e16c5b2e605a

    • Size

      4.7MB

    • MD5

      280ad7fce13d25ab4190070bbae22e12

    • SHA1

      474920d6b01a092845815aec815519e7792444ce

    • SHA256

      40bc721618bfa9595331b7b7bb3a5955be4d3c7e9ca58a063769e16c5b2e605a

    • SHA512

      53d58a7814ccad7a23cb466e56ff2e1f016089fdc5c2bb54d3ccb61ba77475538388a5236b24db07f2ceaca6c39eb3911e7915d13be15f633388cf1bb7b77d5a

    • SSDEEP

      98304:yZoSzXIZ7Svr22SsaNYfdPBldt6+dBcjHtKRJ6BLIbzZhIbzZY:Gw7UM7jGIUAK

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

MITRE ATT&CK Enterprise v15

Tasks