General

  • Target

    Custom Export Tax Recovery Form.vbs

  • Size

    35KB

  • Sample

    241014-k17nksxejq

  • MD5

    36ffacaa0e821c2912bed0735361e00a

  • SHA1

    c079a264f1b14321464ebe3d4d623768432f0b22

  • SHA256

    35950af50b6f5b0a6d108fbac7d8e4dedc6b09b07b4a79c1daa77486254bd7c4

  • SHA512

    511a33081e6077e315dd7daca04e4e686baac0a0b9bd1bf35055381ee61d3a3c27d358bfec43b65f03357815a8caa714cb188136ea55c40be0a22859b31132bc

  • SSDEEP

    768:jxZSZs5rCwjhpJrC67PdLZgfWUdXp3PEQwubEm1VUN4nI1YufAhY:1ZSZspRjbJCSV/cBEObFJI15fIY

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

154.216.18.65:2404

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-UXHRJ7

  • 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

      Custom Export Tax Recovery Form.vbs

    • Size

      35KB

    • MD5

      36ffacaa0e821c2912bed0735361e00a

    • SHA1

      c079a264f1b14321464ebe3d4d623768432f0b22

    • SHA256

      35950af50b6f5b0a6d108fbac7d8e4dedc6b09b07b4a79c1daa77486254bd7c4

    • SHA512

      511a33081e6077e315dd7daca04e4e686baac0a0b9bd1bf35055381ee61d3a3c27d358bfec43b65f03357815a8caa714cb188136ea55c40be0a22859b31132bc

    • SSDEEP

      768:jxZSZs5rCwjhpJrC67PdLZgfWUdXp3PEQwubEm1VUN4nI1YufAhY:1ZSZspRjbJCSV/cBEObFJI15fIY

    • Remcos

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

    • 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

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Accesses Microsoft Outlook accounts

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks