General

  • Target

    6e6706f6cc72d8b64a5014acc09ec78d7a6a92b0de7e6a2541e013e8bee6ab06

  • Size

    1.4MB

  • Sample

    241226-3cjkysvlfk

  • MD5

    4275510e24328f7c334cf5e9ddb0a7f7

  • SHA1

    0ab0a35c80f75bbcf483ac5837e72c790dec1198

  • SHA256

    6e6706f6cc72d8b64a5014acc09ec78d7a6a92b0de7e6a2541e013e8bee6ab06

  • SHA512

    473a446db945beb5748d556177cd57d637d3756a83e2e3ef7180eb27f5f4a25fff77347638666891e591a98bcb72ae71b92fa608591286d0e7bcb3fdd94b4a85

  • SSDEEP

    24576:YD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJF:YF+QrFUBgq25eK7

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

      6e6706f6cc72d8b64a5014acc09ec78d7a6a92b0de7e6a2541e013e8bee6ab06

    • Size

      1.4MB

    • MD5

      4275510e24328f7c334cf5e9ddb0a7f7

    • SHA1

      0ab0a35c80f75bbcf483ac5837e72c790dec1198

    • SHA256

      6e6706f6cc72d8b64a5014acc09ec78d7a6a92b0de7e6a2541e013e8bee6ab06

    • SHA512

      473a446db945beb5748d556177cd57d637d3756a83e2e3ef7180eb27f5f4a25fff77347638666891e591a98bcb72ae71b92fa608591286d0e7bcb3fdd94b4a85

    • SSDEEP

      24576:YD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJF:YF+QrFUBgq25eK7

    • 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