Overview

overview

10

Static

static

1

PO10272026.PDF.html

windows10-2004-x64

10

PO10272026.PDF.html

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    Attachment0.iso
  • Size 975KB
  • Sample261027-kc2sesswew
  • SHA256 dce9fd9f78d6c055b5465b835a1d2fb16179ef6652261e119c56fd2281efb4d5
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
remcosremotehostdiscoveryexecutionpersistenceransomwareratsuricata

Malware Config

Extracted

Family

  • remcos

Version

  • 7.2.5 Pro

Botnet

  • RemoteHost

C2

  • onboard.radiantfluxstudio.com:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    chromeview.exe

  • copy_folder

    GoogleDoc

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-4GJ0FD

  • 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
      PO10272026.PDF.html
    • Size 1.4MB
    • SHA256 c5f48ff4c63352fbdb364ac2fda6a5743d0a00ea868d4dba4ce239b1bc08d272
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    remotehostdiscoveryexecutionremcospersistenceratsuricataransomware

    • Family: Remcos

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

      ratremcos

    • Suricata alert: REMCOS RAT Malware Inbound C2 Communication

      Network activity triggered a Suricata alert

      suricataremcos

    • Suricata alert: REMCOS RAT Malware Outbound C2 Communication

      Network activity triggered a Suricata alert

      suricataremcos

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks