General

  • Target

    zyx.exe

  • Size

    469KB

  • Sample

    241109-q3vppavkc1

  • MD5

    cce8602cd68aaf435c7ce42721867662

  • SHA1

    6adbaa34a641b06b7580191f5dd24c1e82aab6de

  • SHA256

    6de3b5982be4aa09debda91604b1dbbec315f20acd900a96468653aaeab197a5

  • SHA512

    ed5357cb5d8c8139b8e918d3b75914b2a8523c09df81d7976df4d4c1a411e16262b509459384bb8ea92b89e5de1d5a655464719800e0da67ff4668005ea063e9

  • SSDEEP

    12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQS8n9:uiLJbpI7I2WhQqZ789

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

camera-ms.gl.at.ply.gg:50534

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    system.exe

  • copy_folder

    Remcos

  • delete_file

    true

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %WinDir%\System32

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-3KI5BX

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      zyx.exe

    • Size

      469KB

    • MD5

      cce8602cd68aaf435c7ce42721867662

    • SHA1

      6adbaa34a641b06b7580191f5dd24c1e82aab6de

    • SHA256

      6de3b5982be4aa09debda91604b1dbbec315f20acd900a96468653aaeab197a5

    • SHA512

      ed5357cb5d8c8139b8e918d3b75914b2a8523c09df81d7976df4d4c1a411e16262b509459384bb8ea92b89e5de1d5a655464719800e0da67ff4668005ea063e9

    • SSDEEP

      12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQS8n9:uiLJbpI7I2WhQqZ789

    • Remcos

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

    • Remcos family

    • UAC bypass

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks