Overview

overview

10

Static

static

10

8cb54b1c3a...dd.exe

windows10-2004-x64

10

8cb54b1c3a...dd.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    58s
  • max time network
    62s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    01/09/2026, 20:43

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General

  • Target
    8cb54b1c3af49302af87c182c8911e4b1b72eaa11295bfc1ebe72053c06d2fdd.exe
  • Size 645KB
  • Sample260901-zhvcvsar4w
  • SHA256 8cb54b1c3af49302af87c182c8911e4b1b72eaa11295bfc1ebe72053c06d2fdd
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
remcosremotehostremcospersistencerat

Malware Config

Extracted

Family

  • remcos

Version

  • 7.3.1 Pro

Botnet

  • RemcosRemoteHost

C2

  • slot91.co:2404

  • www.slot91.co:2404

  • c2.slot91.co:2404

  • backdoor.slot91.co:2404

  • malware.slot91.co:2404

  • admin.slot91.co:2404

  • api.slot91.co:2404

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

    %WinDir%\System32

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-AAFBF2

  • screenshot_crypt

    false

  • screenshot_flag

    true

  • screenshot_folder

    Screenshots

  • screenshot_path

    %SystemDrive%

  • 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
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 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 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\8cb54b1c3af49302af87c182c8911e4b1b72eaa11295bfc1ebe72053c06d2fdd.exe
    "C:\Users\Admin\AppData\Local\Temp\8cb54b1c3af49302af87c182c8911e4b1b72eaa11295bfc1ebe72053c06d2fdd.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in System32 directory
    • Suspicious use of WriteProcessMemory
    PID:1068
    • C:\Windows\SysWOW64\service\winservice.exe
      "C:\Windows\SysWOW64\service\winservice.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:1264
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x00000000000004DC 0x00000000000004E4
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2464

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        logs.dat
        • Path C:\ProgramData\remcos\logs.dat
        • Size 238B
        • SHA256 fd87ac382602ba278a06ee406270f70a5b1e61ab7c147d32bfa615314299db59
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        winservice.exe
        • Path C:\Windows\SysWOW64\service\winservice.exe
        • Size 645KB
        • SHA256 8cb54b1c3af49302af87c182c8911e4b1b72eaa11295bfc1ebe72053c06d2fdd
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download