General

  • Target
    Company Request.JS.js
  • Size 4.8MB
  • Sample261102-qs383stybx
  • SHA256 2a791d8bb1c588f9fb8c411605afc8c4e939e9aa25663e92968299f175c27443
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • remcos

Version
  • 7.3.1 Pro

Botnet
  • Test

C2
  • kingremcos2026.duckdns.org:2404

  • www.kingmethodclassprojectnow.com:2404

  • www.kingmethodclassprojectnowbackup.com:2404

  • www.kingmethodclassprojectnowbackup1.com:2404

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

    folder

  • mouse_option

    false

  • mutex

    Rmc-ZR4RL9

  • 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
      Company Request.JS.js
    • Size 4.8MB
    • SHA256 2a791d8bb1c588f9fb8c411605afc8c4e939e9aa25663e92968299f175c27443
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects DonutLoader

    • Family: DonutLoader

      DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

    • Family: Remcos

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

    • Suricata alert: REMCOS RAT Malware Inbound C2 Communication

      Network activity triggered a Suricata alert

    • Suricata alert: REMCOS RAT Malware Outbound C2 Communication

      Network activity triggered a Suricata alert

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Executes a VBScript file via the Windows Script Host.

MITRE ATT&CK Enterprise v16

Tasks