Overview

overview

10

Static

static

10

2026-08-23...ar.exe

windows10-2004-x64

10

2026-08-23...ar.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    24/08/2026, 10:59

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General

  • Target
    2026-08-23_5c421ff83c2f206a8eebda7ad2b1c97a_cobalt-strike_coinminer_icedid_njrat_remcos_vidar.exe
  • Size 626KB
  • Sample260824-m3vsxastdw
  • SHA256 a6fd9fea1d4d1c9e95fcd4c2da73dd917bdb5a4ba555076612661b15a2e52c25
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
remcosremotehostremcospersistenceratspywarestealersuricata

Malware Config

Extracted

Family

  • remcos

Version

  • 7.2.6 Pro

Botnet

  • RemcosRemoteHost

C2

  • admin.web8kbetchinhthuc.com:8080

  • api.web8kbetchinhthuc.com:8080

  • web8kbetchinhthuc.com:8080

  • c2.web8kbetchinhthuc.com:8080

  • login.web8kbetchinhthuc.com:8080

  • panel.web8kbetchinhthuc.com:8080

  • phishing.web8kbetchinhthuc.com:8080

  • update.web8kbetchinhthuc.com:8080

  • www.web8kbetchinhthuc.com:8080

  • backdoor.web8kbetchinhthuc.com:8080

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    winservice.exe

  • copy_folder

    service

  • 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-3NYBXW

  • screenshot_crypt

    false

  • screenshot_flag

    true

  • screenshot_folder

    Screenshots

  • screenshot_path

    %WinDir%\System32

  • screenshot_time

    15

  • startup_value

    

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Family: Remcos

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

    ratremcos
  • Suricata alert: REMCOS RAT Malware Outbound C2 Communication 64 IoCs

    Network activity triggered a Suricata alert

    suricataremcos
  • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

    spywarestealer
  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-23_5c421ff83c2f206a8eebda7ad2b1c97a_cobalt-strike_coinminer_icedid_njrat_remcos_vidar.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-23_5c421ff83c2f206a8eebda7ad2b1c97a_cobalt-strike_coinminer_icedid_njrat_remcos_vidar.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4256
    • C:\Users\Admin\AppData\Roaming\service\winservice.exe
      "C:\Users\Admin\AppData\Roaming\service\winservice.exe"
      2⤵
      • Suricata alert: REMCOS RAT Malware Outbound C2 Communication
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in System32 directory
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:5920
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x00000000000004E0 0x00000000000004F0
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4308

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        logs.dat
        • Path C:\ProgramData\remcos\logs.dat
        • Size 1KB
        • SHA256 521b42f27bebc8bc53099fa5ffae174974b6e0c0e6e7dbda6b92f8fd31c586ac
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        winservice.exe
        • Path C:\Users\Admin\AppData\Roaming\service\winservice.exe
        • Size 626KB
        • SHA256 a6fd9fea1d4d1c9e95fcd4c2da73dd917bdb5a4ba555076612661b15a2e52c25
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download