General

  • Target

    SecuriteInfo.com.Win32.PWSX-gen.17334.14366.exe

  • Size

    992KB

  • Sample

    240823-g4bhrs1hmj

  • MD5

    8d3e290b31269ed646fdaeb03fc044b1

  • SHA1

    6b4feb7ecad8adffc5d9b14d931c463b76347d48

  • SHA256

    66f3abf06c96c938894a2d721331e7dec08154d681bfae6f2db4dbc35a995e46

  • SHA512

    7501f8c773f5b26aa9dbc4833423ced084935b6f90b38fd67f204928c44e2d3b0d4a83d9e07bb79b80efe095838881e0c65af8f22886d3221e49ba6cd23019a4

  • SSDEEP

    12288:vdZshZWHXnhEE8tpUEx1I94L+R49xIUBZjlP4JH0Y6QC4zmEs0mwF0WOs5HvrWZp:vzshZEXw7jIS6RuXGUDQFDMEKW4THM0L

Malware Config

Extracted

Family

remcos

Botnet

Aug 23C

C2

method8888.ddns.net:6902

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-RCNGU6

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      SecuriteInfo.com.Win32.PWSX-gen.17334.14366.exe

    • Size

      992KB

    • MD5

      8d3e290b31269ed646fdaeb03fc044b1

    • SHA1

      6b4feb7ecad8adffc5d9b14d931c463b76347d48

    • SHA256

      66f3abf06c96c938894a2d721331e7dec08154d681bfae6f2db4dbc35a995e46

    • SHA512

      7501f8c773f5b26aa9dbc4833423ced084935b6f90b38fd67f204928c44e2d3b0d4a83d9e07bb79b80efe095838881e0c65af8f22886d3221e49ba6cd23019a4

    • SSDEEP

      12288:vdZshZWHXnhEE8tpUEx1I94L+R49xIUBZjlP4JH0Y6QC4zmEs0mwF0WOs5HvrWZp:vzshZEXw7jIS6RuXGUDQFDMEKW4THM0L

    • 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.

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook accounts

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks