General

  • Target

    d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6

  • Size

    2.2MB

  • Sample

    240903-fcz7daxdnq

  • MD5

    7b2f2592d4c6b19dd8ab8f78778cde9b

  • SHA1

    29d02c3eb53e75ca642e018ceb938aae8b4e7e83

  • SHA256

    d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6

  • SHA512

    0d86779afac9727c9851cdb4012ad49c4ee19fee09f203aa62f152cfaf9938097146291c1af1a1d2e281096a2012d19ded13d5641016c2fe3827fdd973bef2c6

  • SSDEEP

    24576:XD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF49rO/L:Xp7E+QrFUBgq2U

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

Extracted

Family

remcos

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

      d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6

    • Size

      2.2MB

    • MD5

      7b2f2592d4c6b19dd8ab8f78778cde9b

    • SHA1

      29d02c3eb53e75ca642e018ceb938aae8b4e7e83

    • SHA256

      d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6

    • SHA512

      0d86779afac9727c9851cdb4012ad49c4ee19fee09f203aa62f152cfaf9938097146291c1af1a1d2e281096a2012d19ded13d5641016c2fe3827fdd973bef2c6

    • SSDEEP

      24576:XD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF49rO/L:Xp7E+QrFUBgq2U

    • Remcos

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

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • 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