General

  • Target

    c457681513ecad761f8235e40c755c4b2df1be62d17cb110fde1e4a6adde8524

  • Size

    1.4MB

  • Sample

    230801-dz113sda25

  • MD5

    5e597662e141d3d761f74e2d06500b32

  • SHA1

    c2c1fd371bd3a3ea0e6b5aa23f5191d647969d81

  • SHA256

    c457681513ecad761f8235e40c755c4b2df1be62d17cb110fde1e4a6adde8524

  • SHA512

    67390d1fb61b567280930f80b36a5b7ab9291e13d45277dd2c687f535deb93d56e29d20c3f24533b3923398730a2845baf5762051d675572c9a48a6288c008c3

  • 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

      c457681513ecad761f8235e40c755c4b2df1be62d17cb110fde1e4a6adde8524

    • Size

      1.4MB

    • MD5

      5e597662e141d3d761f74e2d06500b32

    • SHA1

      c2c1fd371bd3a3ea0e6b5aa23f5191d647969d81

    • SHA256

      c457681513ecad761f8235e40c755c4b2df1be62d17cb110fde1e4a6adde8524

    • SHA512

      67390d1fb61b567280930f80b36a5b7ab9291e13d45277dd2c687f535deb93d56e29d20c3f24533b3923398730a2845baf5762051d675572c9a48a6288c008c3

    • 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