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General

  • Target

    96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914

  • Size

    893KB

  • Sample

    250323-y3bwksxq15

  • MD5

    713d5d355897713dedd6ad842803c318

  • SHA1

    04d95dfa3a448e1bc0ea8538d99d00768493103e

  • SHA256

    96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914

  • SHA512

    b5ea9005a4293b2cfea9e1f7c3b8fd3f6783816bc500640c19a632c28e85ea9797bc6fbc7a2237dbf17219e3dbebf59cc5a77164b74fc2cf18bacfd3be0777af

  • SSDEEP

    12288:Jp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3z7:JpugRNJI1D39dlfGQrFUxwAez7

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

      96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914

    • Size

      893KB

    • MD5

      713d5d355897713dedd6ad842803c318

    • SHA1

      04d95dfa3a448e1bc0ea8538d99d00768493103e

    • SHA256

      96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914

    • SHA512

      b5ea9005a4293b2cfea9e1f7c3b8fd3f6783816bc500640c19a632c28e85ea9797bc6fbc7a2237dbf17219e3dbebf59cc5a77164b74fc2cf18bacfd3be0777af

    • SSDEEP

      12288:Jp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3z7:JpugRNJI1D39dlfGQrFUxwAez7

    • 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