General

  • Target

    06112024_0951_rA01_278 Check list�pdf.vbs.zip

  • Size

    8KB

  • Sample

    241106-lvyn6azqer

  • MD5

    3e3ae6b34543068ecd92772a5c1eddf0

  • SHA1

    24e094f1560d162cc3d07d06de6972b8f78421fa

  • SHA256

    c985838da01a3503762139ed46c050f93b1eb4a2c803ba82f081f382a4a3f2ef

  • SHA512

    37a86d648640f7ecbf1639a03b0ac85737e1ad9febba75ad5186bd1f08b3db2d65f5660fc5b90fa44a4618c5456cf304501eea332ea831d7cbfc01e2c149f282

  • SSDEEP

    192:lG8eT6MZsl/TumMJ+FuQUNA5bs6JLlSDiHjxVmWKFwj10RBce:UTjZG/TAJNDGK6JLMDiDxcWKF2IBp

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

a458386d9.duckdns.org:3256

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

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-4EN793

  • 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

      rA01_278 Check list·pdf.vbs

    • Size

      14KB

    • MD5

      9becd037359f4e017d31dc8ec143ec55

    • SHA1

      dd98bea234f0b59af645b1a78ee2ca201ad7f1f5

    • SHA256

      bec952140d46bb6b997483d3f1aba4228d80a943c1a956568754231ff3e668ee

    • SHA512

      b49ee61f497b0a88f5c182ed97bc5db0da64a04f7154f7aa81be077bbaed7f949fabf02a751da51bd12f600600c622078cfa03c7353bf8fe3e32d71751aa44ea

    • SSDEEP

      192:QbbM68CG8YWX/+mg0Q9bSu5C1YhhzbmpGSvEX1Dks6Dz4CrZQI57b/25vGFMjw7y:Yb05MFJ/FsQPHoimJHFcMcA

    • Remcos

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

    • Remcos family

    • UAC bypass

    • 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

    • 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.

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks