General

  • Target

    cdee0f0c53b0cec377c5742953542e130f6b7fbd0d5138aefa9cda029bc66231N.exe

  • Size

    1.0MB

  • Sample

    241221-2n46csslds

  • MD5

    70468aa533db2ae27fbfc623ee425590

  • SHA1

    3467409c6e6995f8bf6deea847880d6a56d029d3

  • SHA256

    cdee0f0c53b0cec377c5742953542e130f6b7fbd0d5138aefa9cda029bc66231

  • SHA512

    1f2c35b46a86391aa392ee5a6ac88e798e29bb313f48d25bd4b8c315c3b049373d0d9e8710f4c58861c5357b0f6df0680d436f1098b7f2e5a14f2dbcdf7c3bc5

  • SSDEEP

    12288:PfeDOa9rDeYSorINpj5XqkJD0QrOod7XxlW91RRep+rgRNyA55IxJ2DJW//oj/W:uD39v74lfGQrFUspugRNJI2DJW//ojO

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

      cdee0f0c53b0cec377c5742953542e130f6b7fbd0d5138aefa9cda029bc66231N.exe

    • Size

      1.0MB

    • MD5

      70468aa533db2ae27fbfc623ee425590

    • SHA1

      3467409c6e6995f8bf6deea847880d6a56d029d3

    • SHA256

      cdee0f0c53b0cec377c5742953542e130f6b7fbd0d5138aefa9cda029bc66231

    • SHA512

      1f2c35b46a86391aa392ee5a6ac88e798e29bb313f48d25bd4b8c315c3b049373d0d9e8710f4c58861c5357b0f6df0680d436f1098b7f2e5a14f2dbcdf7c3bc5

    • SSDEEP

      12288:PfeDOa9rDeYSorINpj5XqkJD0QrOod7XxlW91RRep+rgRNyA55IxJ2DJW//oj/W:uD39v74lfGQrFUspugRNJI2DJW//ojO

    • 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