General

  • Target

    733e47fd70fea7d93b7093c5e859c0abb2e54f338c4f256791847dc3b1a5349a

  • Size

    1.1MB

  • Sample

    241130-at9jgstqhz

  • MD5

    a57b7e38d1765b7f08587a7d9004894b

  • SHA1

    d4e8d9a1de6621b4ec9a8c4fba962b7f7b53221f

  • SHA256

    733e47fd70fea7d93b7093c5e859c0abb2e54f338c4f256791847dc3b1a5349a

  • SHA512

    54aeec3eba54e56c26ed31107e65cda1b594b6d054823e6f10a3f1509c3943b2fad8dc4cc3cffa0df731bd312eeb1e43589b0d610dcdda628be19599a6e52f82

  • SSDEEP

    24576:6qvk/2pbAX+MRzZeIeKK2gOSAt4hI+KXb:zvkO5AFzAN0hSAt4oXb

Malware Config

Extracted

Family

remcos

Botnet

ECHE

C2

85.31.47.62:45356

127.0.0.1:45356

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-AEO8MN

  • 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

      733e47fd70fea7d93b7093c5e859c0abb2e54f338c4f256791847dc3b1a5349a

    • Size

      1.1MB

    • MD5

      a57b7e38d1765b7f08587a7d9004894b

    • SHA1

      d4e8d9a1de6621b4ec9a8c4fba962b7f7b53221f

    • SHA256

      733e47fd70fea7d93b7093c5e859c0abb2e54f338c4f256791847dc3b1a5349a

    • SHA512

      54aeec3eba54e56c26ed31107e65cda1b594b6d054823e6f10a3f1509c3943b2fad8dc4cc3cffa0df731bd312eeb1e43589b0d610dcdda628be19599a6e52f82

    • SSDEEP

      24576:6qvk/2pbAX+MRzZeIeKK2gOSAt4hI+KXb:zvkO5AFzAN0hSAt4oXb

    • Remcos

      Remcos is a closed-source remote control and surveillance software.

    • Remcos family

    • 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.

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • 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