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General

  • Target

    57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee

  • Size

    1.9MB

  • Sample

    240723-1m24yazhjl

  • MD5

    a01fc27f1f56ee7a8803c9ec23516f76

  • SHA1

    5454698bd7f59b0bf6ada7c26e29fcea903caa2a

  • SHA256

    57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee

  • SHA512

    648a557b9f1bca784f3d046541f4f5102640d9ed2d87b854d2720fb35c83f22f0b924d0c71ed3fd8c929b9429fd092cf531e9f8d15be190850ffb63d939f4dee

  • SSDEEP

    24576:OD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYFES7Ns:Op7E+QrFUBgq2aa

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

      57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee

    • Size

      1.9MB

    • MD5

      a01fc27f1f56ee7a8803c9ec23516f76

    • SHA1

      5454698bd7f59b0bf6ada7c26e29fcea903caa2a

    • SHA256

      57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee

    • SHA512

      648a557b9f1bca784f3d046541f4f5102640d9ed2d87b854d2720fb35c83f22f0b924d0c71ed3fd8c929b9429fd092cf531e9f8d15be190850ffb63d939f4dee

    • SSDEEP

      24576:OD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYFES7Ns:Op7E+QrFUBgq2aa

    • 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