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General

  • Target

    2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb

  • Size

    1.9MB

  • Sample

    250323-znl9fayqt2

  • MD5

    763f1e6fe1bff405f9e6c832dc958c91

  • SHA1

    3ca2538ae35c2c17c2b1097faf2b5e1e5128279f

  • SHA256

    2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb

  • SHA512

    8146245c3953600b1875675ff7c1164201c03ac0189eb152c2cd8bc9664fa08798fec1f5a8ea42448cf1db3d0631449c1b3c3396f7267a2b10e9748efed5bed5

  • SSDEEP

    24576:QD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJWqwH6d:QF+QrFUBgq25eKu6d

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

      2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb

    • Size

      1.9MB

    • MD5

      763f1e6fe1bff405f9e6c832dc958c91

    • SHA1

      3ca2538ae35c2c17c2b1097faf2b5e1e5128279f

    • SHA256

      2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb

    • SHA512

      8146245c3953600b1875675ff7c1164201c03ac0189eb152c2cd8bc9664fa08798fec1f5a8ea42448cf1db3d0631449c1b3c3396f7267a2b10e9748efed5bed5

    • SSDEEP

      24576:QD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJWqwH6d:QF+QrFUBgq25eKu6d

    • 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