General

  • Target

    669a4762ebbc01ff9465324a4d3e819d0eff2f66851c4beabbc526ded68f1714

  • Size

    1.4MB

  • Sample

    230801-dyx8ssch98

  • MD5

    295b10a4c8e2321fc2f4c94b3faf597d

  • SHA1

    d7975938a4cec18fd115e1d67f30d0a3c7c0dd0a

  • SHA256

    669a4762ebbc01ff9465324a4d3e819d0eff2f66851c4beabbc526ded68f1714

  • SHA512

    80286405637ede472d27f4123c629c0c17d8ff376a96592c153e679d06fade01a6757ce1baca9a2c9358b1c7e2dd1aee835817d5d9291b65eb8c86a83ccf9b79

  • SSDEEP

    24576:U2G/nvxW3Ww0tRp8GiXTBhq7yRDvHcUcjUvy0lr3Tl6icOB/UWoT:UbA30H4zF0UMSAicOB/UWk

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

-

C2

94.131.105.161:12344

Mutex

QSR_MUTEX_UEgITWnMKnRP3EZFzK

Attributes
  • encryption_key

    5Q0JQBQQfAUHRJTcAIOF

  • install_name

    lient.exe

  • log_directory

    Lugs

  • reconnect_delay

    3000

  • startup_key

    itartup

  • subdirectory

    SubDir

Targets

    • Target

      669a4762ebbc01ff9465324a4d3e819d0eff2f66851c4beabbc526ded68f1714

    • Size

      1.4MB

    • MD5

      295b10a4c8e2321fc2f4c94b3faf597d

    • SHA1

      d7975938a4cec18fd115e1d67f30d0a3c7c0dd0a

    • SHA256

      669a4762ebbc01ff9465324a4d3e819d0eff2f66851c4beabbc526ded68f1714

    • SHA512

      80286405637ede472d27f4123c629c0c17d8ff376a96592c153e679d06fade01a6757ce1baca9a2c9358b1c7e2dd1aee835817d5d9291b65eb8c86a83ccf9b79

    • SSDEEP

      24576:U2G/nvxW3Ww0tRp8GiXTBhq7yRDvHcUcjUvy0lr3Tl6icOB/UWoT:UbA30H4zF0UMSAicOB/UWk

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Modifies Windows Firewall

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

MITRE ATT&CK Enterprise v15

Tasks