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General

  • Target

    4e4855563c47f7a6c230b54ef27c2e1d46f6d895220588d5ba50652414de98e2.exe

  • Size

    927KB

  • Sample

    240625-brvg8awdpq

  • MD5

    18416919737cea3ac328aa30560e3be4

  • SHA1

    c446f65f62326e534c1627af9d836e58d28d88d5

  • SHA256

    4e4855563c47f7a6c230b54ef27c2e1d46f6d895220588d5ba50652414de98e2

  • SHA512

    f53d846d4507541113feb3244acd9c66e1649d29f3c1331c30d8bd7cd5f478482a7313882b5d191e037d1592d695c3d85522272a6d0f816ca8f63e177ce870a8

  • SSDEEP

    24576:W0HPaXjcpYXYrq05AuW7FzuT8udqrPvVmiN0nL:BaTi/xksbdq3Ei0n

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

185.29.9.102:7711

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-4EOZOA

  • 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

      4e4855563c47f7a6c230b54ef27c2e1d46f6d895220588d5ba50652414de98e2.exe

    • Size

      927KB

    • MD5

      18416919737cea3ac328aa30560e3be4

    • SHA1

      c446f65f62326e534c1627af9d836e58d28d88d5

    • SHA256

      4e4855563c47f7a6c230b54ef27c2e1d46f6d895220588d5ba50652414de98e2

    • SHA512

      f53d846d4507541113feb3244acd9c66e1649d29f3c1331c30d8bd7cd5f478482a7313882b5d191e037d1592d695c3d85522272a6d0f816ca8f63e177ce870a8

    • SSDEEP

      24576:W0HPaXjcpYXYrq05AuW7FzuT8udqrPvVmiN0nL:BaTi/xksbdq3Ei0n

    • Remcos

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

    • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

    • Detects executables packed with SmartAssembly

    • 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