General

  • Target

    f94c2da3623066f0066d1e403069a3125160b4200a4d86138cee932cc6970e69

  • Size

    991KB

  • Sample

    240910-qmmn5sxcpe

  • MD5

    c18b6791df510f32c72a619ef3dd7c7d

  • SHA1

    671e8af4049ebc8e93a4a9c968dfe747c24c3a60

  • SHA256

    f94c2da3623066f0066d1e403069a3125160b4200a4d86138cee932cc6970e69

  • SHA512

    ac5d54ad8e46324286d55f7c1a78a6315483e338ebebd36c5d2c2db30085da9ef734bec20782120f4ec8eaf101bccc51f8612fa26adb6e0f0af0711c350b1974

  • SSDEEP

    12288:vdZshZWHXnhEE8tpUEx1I94L+R49xIUBZjlP4JH0Y6QC4zmEs0mwF0WOs5HvrWZX:vzshZEXw7jIS6RuXGUDQFDMEKW4THM05

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

      f94c2da3623066f0066d1e403069a3125160b4200a4d86138cee932cc6970e69

    • Size

      991KB

    • MD5

      c18b6791df510f32c72a619ef3dd7c7d

    • SHA1

      671e8af4049ebc8e93a4a9c968dfe747c24c3a60

    • SHA256

      f94c2da3623066f0066d1e403069a3125160b4200a4d86138cee932cc6970e69

    • SHA512

      ac5d54ad8e46324286d55f7c1a78a6315483e338ebebd36c5d2c2db30085da9ef734bec20782120f4ec8eaf101bccc51f8612fa26adb6e0f0af0711c350b1974

    • SSDEEP

      12288:vdZshZWHXnhEE8tpUEx1I94L+R49xIUBZjlP4JH0Y6QC4zmEs0mwF0WOs5HvrWZX:vzshZEXw7jIS6RuXGUDQFDMEKW4THM05

    • 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