Overview

overview

10

Static

static

10

3.exe

windows10-2004-x64

10

3.exe

windows10-ltsc_2021-x64

10

3.exe

windows11-21h2-x64

10

3.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    3.exe
  • Size 645KB
  • Sample261026-hst2ea1v2k
  • SHA256 92fd1d80d238f3d760c0d8e1ed82fb5c084bfce7b5441d41477bc4a7673df976
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
remcosbeyeugroupdiscoverypersistenceratsuricata

Malware Config

Extracted

Family

  • remcos

Version

  • 7.3.1 Pro

Botnet

  • BeYeuGroup

C2

  • 8kbet.hk.com:80

  • 8kbet.hk.com:8080

  • pg999asia.net:80

  • jacksclub.co:80

  • v99win.tv:80

  • fomo444slot.co:80

  • mmoo.spot:80

  • x88.cheap:80

  • juad888.us:80

  • afribus.co:80

  • anxietyinchildren.co:80

  • 999betslot.vip:80

  • qq88.studio:80

  • qq88.fan:80

  • luck8aa.com:80

  • luck80.net:80

  • g-luck8888.com:80

  • qh88.africa.com:80

  • add.hk.com:80

  • seony.co:80

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • audio_record_time

    5

  • connect_delay

    0AssignedName=tele@VietNamReport

  • connect_interval

    5

  • copy_file

    Updater.exe

  • copy_folder

    byg

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-HPHLM8

  • screenshot_crypt

    false

  • screenshot_flag

    true

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    

  • take_screenshot_option

    true

  • take_screenshot_time

    5

  • take_screenshot_title

    facebook;discord;telegram

Targets

    • Target
      3.exe
    • Size 645KB
    • SHA256 92fd1d80d238f3d760c0d8e1ed82fb5c084bfce7b5441d41477bc4a7673df976
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    beyeugroupdiscoveryremcospersistenceratsuricata

    • Family: Remcos

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

      ratremcos

    • Suricata alert: REMCOS RAT Malware Outbound C2 Communication

      Network activity triggered a Suricata alert

      suricataremcos

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence
    behavioral1behavioral2behavioral3behavioral4

MITRE ATT&CK Enterprise v16

Tasks