General

  • Target

    a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce

  • Size

    903KB

  • Sample

    240916-f8r6ms1dmj

  • MD5

    51f72049f9a159ebe2d0703fa2e9e898

  • SHA1

    8c85bdf7ceff32613cf219da176808ad8a8a8b99

  • SHA256

    a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce

  • SHA512

    fb690d21a2a4a7167c9cf6932a20772db4431bff831e9aafbf502913cd84523f99a002a6ae88383d2cfe6b80e89242ebf8448b1ef563bfce322edb0afc42e168

  • SSDEEP

    24576:RUN2k1xt4uIDiHiNan2k95YYzBQak2P44b3i64I+xrST9i:RU8MfI8uan2kPTz7p9b5VTk

Malware Config

Extracted

Family

remcos

Botnet

Rhymer

C2

64.188.12.208:5500

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-WW3VS5

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce

    • Size

      903KB

    • MD5

      51f72049f9a159ebe2d0703fa2e9e898

    • SHA1

      8c85bdf7ceff32613cf219da176808ad8a8a8b99

    • SHA256

      a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce

    • SHA512

      fb690d21a2a4a7167c9cf6932a20772db4431bff831e9aafbf502913cd84523f99a002a6ae88383d2cfe6b80e89242ebf8448b1ef563bfce322edb0afc42e168

    • SSDEEP

      24576:RUN2k1xt4uIDiHiNan2k95YYzBQak2P44b3i64I+xrST9i:RU8MfI8uan2kPTz7p9b5VTk

    • Remcos

      Remcos is a closed-source remote control and surveillance software.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks