Analysis

  • max time kernel
    60s
  • max time network
    38s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    25/08/2026, 20:30

General

  • Target
    f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387.exe
  • Size 1.5MB
  • Sample260825-zagrssvyfw
  • SHA256 f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • remcos

Version
  • 2.2.2 Pro

Botnet
  • chinemerem

C2
  • remcoss.onmypc.org:3765

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    r-8ET8H0

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Family: Remcos

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

  • Executes dropped EXE 2 IoCs
  • AutoIT Executable 6 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387.exe
    "C:\Users\Admin\AppData\Local\Temp\f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3524
    • C:\Users\Admin\AppData\Local\Temp\f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387.exe
      "C:\Users\Admin\AppData\Local\Temp\f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:4788
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\SysWOW64\schtasks.exe" /create /tn SystemSettingsAdminFlows /tr "C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe" /sc minute /mo 1 /F
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3728
  • C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
    C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5972
    • C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
      "C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"
      2⤵
      • Executes dropped EXE
      PID:4620
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\SysWOW64\schtasks.exe" /create /tn SystemSettingsAdminFlows /tr "C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe" /sc minute /mo 1 /F
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4412

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        AboutSettingsHandlers.exe

        • Path C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
        • Size 1.5MB
        • SHA256 6e69c31631c329788d6a4bf247c44b4bb5df8e298a8e46c8ec1197efe1cd78a8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        logs.dat

        • Path C:\Users\Admin\AppData\Roaming\remcos\logs.dat
        • Size 79B
        • SHA256 f0c52cacd86262d83f3508b9ab23cbf9a416e5c248c294af3d5cf0a9c4c32c7d
        • MD5 SHA1 SHA512 TLSH

        memory/3524-19-0x0000000000DE0000-0x0000000000F69000-memory.dmp

        memory/3524-1-0x0000000000940000-0x0000000000943000-memory.dmp

        memory/3524-2-0x00000000017F0000-0x00000000017F1000-memory.dmp

        memory/3524-0-0x0000000000DE0000-0x0000000000F69000-memory.dmp

        memory/3524-21-0x0000000000DE0000-0x0000000000F69000-memory.dmp

        memory/3524-15-0x0000000000940000-0x0000000000943000-memory.dmp

        memory/3524-16-0x0000000000DE0000-0x0000000000F69000-memory.dmp

        memory/4788-10-0x00000000000C0000-0x00000000000E0000-memory.dmp

        memory/4788-14-0x00000000000C0000-0x00000000000E0000-memory.dmp

        memory/4788-11-0x00000000000C0000-0x00000000000E0000-memory.dmp

        memory/4788-3-0x00000000000C0000-0x00000000000E0000-memory.dmp

        memory/5972-24-0x0000000000930000-0x0000000000933000-memory.dmp

        memory/5972-35-0x0000000000930000-0x0000000000933000-memory.dmp

        memory/5972-34-0x0000000000DE0000-0x0000000000F69000-memory.dmp

        memory/5972-37-0x0000000000DE0000-0x0000000000F69000-memory.dmp

        memory/5972-38-0x0000000000DE0000-0x0000000000F69000-memory.dmp