General

  • Target

    3ee02536ccad676519cf0840ce8976291b7e9a4d35281d3879f5f8ae41169a72N.exe

  • Size

    965KB

  • Sample

    241219-y45v2syqhn

  • MD5

    96c033b95f703cf3b3eb0344e1687570

  • SHA1

    f6edbd4df222d361e9aca11ed3d3d51502e2ea58

  • SHA256

    3ee02536ccad676519cf0840ce8976291b7e9a4d35281d3879f5f8ae41169a72

  • SHA512

    73cf7ea67a4c16b17acd1bb250a97578f200490cb9b72989357267b2e7820549752f46b302c5fdb521eb669b5dda9521578d73fc39d3acb1d1ae73ddb581491e

  • SSDEEP

    12288:mfeDOa9rDeYSorINpj5XqkJD0QrOod7XxlW91RRep+rgRNyA55IxJ2DJFnO/91:tD39v74lfGQrFUspugRNJI2DJFnO/L

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

213.183.58.19:4000

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    read.dat

  • keylog_flag

    false

  • keylog_folder

    CastC

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_sccafsoidz

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      3ee02536ccad676519cf0840ce8976291b7e9a4d35281d3879f5f8ae41169a72N.exe

    • Size

      965KB

    • MD5

      96c033b95f703cf3b3eb0344e1687570

    • SHA1

      f6edbd4df222d361e9aca11ed3d3d51502e2ea58

    • SHA256

      3ee02536ccad676519cf0840ce8976291b7e9a4d35281d3879f5f8ae41169a72

    • SHA512

      73cf7ea67a4c16b17acd1bb250a97578f200490cb9b72989357267b2e7820549752f46b302c5fdb521eb669b5dda9521578d73fc39d3acb1d1ae73ddb581491e

    • SSDEEP

      12288:mfeDOa9rDeYSorINpj5XqkJD0QrOod7XxlW91RRep+rgRNyA55IxJ2DJFnO/91:tD39v74lfGQrFUspugRNJI2DJFnO/L

    • Remcos

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

    • Remcos family

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks