General

  • Target

    f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5

  • Size

    2.0MB

  • Sample

    240912-dve8taydrk

  • MD5

    de8ace350bf5f9ed386aaf2474ead949

  • SHA1

    9af2d597b8e8bf2daa029ff41e2c1712607edc7e

  • SHA256

    f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5

  • SHA512

    51caa8b3422022f439ba43be5fa152e261bb5948d2ab0d38dc66513eeed4b98875438337c5053581f24e8beba1dfacca8956fc6eb548ab16d2f9148932b2e508

  • SSDEEP

    24576:7D39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPj8/j73AneLKJJ+G:7p7E+QrFUBgq29

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

      f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5

    • Size

      2.0MB

    • MD5

      de8ace350bf5f9ed386aaf2474ead949

    • SHA1

      9af2d597b8e8bf2daa029ff41e2c1712607edc7e

    • SHA256

      f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5

    • SHA512

      51caa8b3422022f439ba43be5fa152e261bb5948d2ab0d38dc66513eeed4b98875438337c5053581f24e8beba1dfacca8956fc6eb548ab16d2f9148932b2e508

    • SSDEEP

      24576:7D39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPj8/j73AneLKJJ+G:7p7E+QrFUBgq29

    • 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