General

  • Target

    174d275e7cd95e50878e934ad3e7684dbbcc3ef7be79b6ba537bc3e99fdb0878

  • Size

    139KB

  • Sample

    240910-x2zqkssapc

  • MD5

    77c7bc93cb86b97f26471b06d7668654

  • SHA1

    8e20bf557703b30a4e4a23eda7db6393252a7252

  • SHA256

    174d275e7cd95e50878e934ad3e7684dbbcc3ef7be79b6ba537bc3e99fdb0878

  • SHA512

    190b4bb4c4a10de1806fb66a4510f9bddabef7f3d58b300f14318625014078308f0b01b0654ad0baa31adf740a00b28b856a2138735f93451e1c70bb85bb7c7f

  • SSDEEP

    3072:xPd4n/M+WLcilrpgGH/GwY87mVmIXhIHc:xP6/M+WLckOBhVmIV

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

systemcontrol.ddns.net:45000

systemcontrol2.ddns.net:45000

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    OfficeUpgrade.exe

  • copy_folder

    OfficeUpgrade

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    Upgrader.dat

  • keylog_flag

    false

  • keylog_folder

    Upgrader

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    req_khauflaoyr

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    OfficeUpgrade

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      174d275e7cd95e50878e934ad3e7684dbbcc3ef7be79b6ba537bc3e99fdb0878

    • Size

      139KB

    • MD5

      77c7bc93cb86b97f26471b06d7668654

    • SHA1

      8e20bf557703b30a4e4a23eda7db6393252a7252

    • SHA256

      174d275e7cd95e50878e934ad3e7684dbbcc3ef7be79b6ba537bc3e99fdb0878

    • SHA512

      190b4bb4c4a10de1806fb66a4510f9bddabef7f3d58b300f14318625014078308f0b01b0654ad0baa31adf740a00b28b856a2138735f93451e1c70bb85bb7c7f

    • SSDEEP

      3072:xPd4n/M+WLcilrpgGH/GwY87mVmIXhIHc:xP6/M+WLckOBhVmIV

    • Remcos

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks