Analysis

  • max time kernel
    59s
  • max time network
    63s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    09/08/2026, 20:17

General

  • Target
    170b9f492117c402da460330273dd0892f1714762de1a1e92b15d19973cea77d.exe
  • Size 1.5MB
  • Sample260809-y2vbjadj9s
  • SHA256 170b9f492117c402da460330273dd0892f1714762de1a1e92b15d19973cea77d
  • 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.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 3 IoCs
  • AutoIT Executable 5 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 6 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\170b9f492117c402da460330273dd0892f1714762de1a1e92b15d19973cea77d.exe
    "C:\Users\Admin\AppData\Local\Temp\170b9f492117c402da460330273dd0892f1714762de1a1e92b15d19973cea77d.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4076
    • C:\Users\Admin\AppData\Local\Temp\170b9f492117c402da460330273dd0892f1714762de1a1e92b15d19973cea77d.exe
      "C:\Users\Admin\AppData\Local\Temp\170b9f492117c402da460330273dd0892f1714762de1a1e92b15d19973cea77d.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:3444
    • 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:2908
  • C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
    C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4084
    • C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
      "C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"
      2⤵
      • Executes dropped EXE
      PID:440
    • 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:3004
  • C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
    C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2992

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        AboutSettingsHandlers.exe

        • Path C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
        • Size 1.5MB
        • SHA256 44db32607188d3b32c7f0e365acb43ac31a06a9884f05750254e47a99db0351a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        logs.dat

        • Path C:\Users\Admin\AppData\Roaming\remcos\logs.dat
        • Size 79B
        • SHA256 b0217b9caffad19b52d2bb92ac2f6c3dbf28748f3a0b02d22cb9d4c8938c0f60
        • MD5 SHA1 SHA512 TLSH

        memory/2992-38-0x0000000000DE0000-0x0000000000F69000-memory.dmp

        memory/3444-3-0x00000000000C0000-0x00000000000E0000-memory.dmp

        memory/3444-10-0x00000000000C0000-0x00000000000E0000-memory.dmp

        memory/3444-11-0x00000000000C0000-0x00000000000E0000-memory.dmp

        memory/3444-14-0x00000000000C0000-0x00000000000E0000-memory.dmp

        memory/4076-16-0x0000000000DE0000-0x0000000000F69000-memory.dmp

        memory/4076-0-0x0000000000DE0000-0x0000000000F69000-memory.dmp

        memory/4076-21-0x0000000000DE0000-0x0000000000F69000-memory.dmp

        memory/4076-15-0x0000000000180000-0x0000000000183000-memory.dmp

        memory/4076-2-0x0000000000DC0000-0x0000000000DC1000-memory.dmp

        memory/4076-1-0x0000000000180000-0x0000000000183000-memory.dmp

        memory/4084-24-0x0000000000810000-0x0000000000813000-memory.dmp

        memory/4084-35-0x0000000000DE0000-0x0000000000F69000-memory.dmp

        memory/4084-40-0x0000000000DE0000-0x0000000000F69000-memory.dmp