General

  • Target

    e40598c54f117c13982d83df95dd0bd0N.exe

  • Size

    2.1MB

  • Sample

    240831-zw4hpavgph

  • MD5

    e40598c54f117c13982d83df95dd0bd0

  • SHA1

    b4339907202fbfe29d7a04130b74993908984ee2

  • SHA256

    d0e1b229f72e52ed760f593059468812cc070b08b1507a2e35da8ecbc1e78788

  • SHA512

    9c8cfbb2340e625faa999f2561c3213f0e3081161a79a748b2556c5505a70a56f53fc73e04f1345f728a078cbd61055876ac6941dd8617af64ec6bf8b1986a3d

  • SSDEEP

    24576:kD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPj8/j73AneLwRp4:kp7E+QrFUBgq2JW

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

      e40598c54f117c13982d83df95dd0bd0N.exe

    • Size

      2.1MB

    • MD5

      e40598c54f117c13982d83df95dd0bd0

    • SHA1

      b4339907202fbfe29d7a04130b74993908984ee2

    • SHA256

      d0e1b229f72e52ed760f593059468812cc070b08b1507a2e35da8ecbc1e78788

    • SHA512

      9c8cfbb2340e625faa999f2561c3213f0e3081161a79a748b2556c5505a70a56f53fc73e04f1345f728a078cbd61055876ac6941dd8617af64ec6bf8b1986a3d

    • SSDEEP

      24576:kD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPj8/j73AneLwRp4:kp7E+QrFUBgq2JW

    • 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