Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    12/11/2026, 08:41

General

  • Target
    M66 _PO.bat.exe
  • Size 1.1MB
  • Sample261112-klhe5seb49
  • SHA256 91efb70dfac25b773386e4e4cb99cd88d2408e047f23ddaf62e1273105b2ee01
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • remcos

Version
  • 7.3.1 Pro

Botnet
  • RemoteHost

C2
  • 204.10.160.161:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-XMYFIX

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Family: Remcos

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

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

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 1 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • outlook_office_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\M66 _PO.bat.exe
    "C:\Users\Admin\AppData\Local\Temp\M66 _PO.bat.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4768
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\M66 _PO.bat.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:344
    • C:\Users\Admin\AppData\Local\Temp\M66 _PO.bat.exe
      "C:\Users\Admin\AppData\Local\Temp\M66 _PO.bat.exe"
      2⤵
        PID:204
      • C:\Users\Admin\AppData\Local\Temp\M66 _PO.bat.exe
        "C:\Users\Admin\AppData\Local\Temp\M66 _PO.bat.exe"
        2⤵
          PID:1064
        • C:\Users\Admin\AppData\Local\Temp\M66 _PO.bat.exe
          "C:\Users\Admin\AppData\Local\Temp\M66 _PO.bat.exe"
          2⤵
          • Accesses Microsoft Outlook profiles
          • Reads the TCP/IP host and domain name from the registry
          • Suspicious use of SetWindowsHookEx
          • outlook_office_path
          PID:756

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            logs.dat

            • Path C:\ProgramData\remcos\logs.dat
            • Size 144B
            • SHA256 f3f346dbbc040c9a0e8c2a60973f2e116a6be60a62fb942182b53e9d30205fb2
            • MD5 SHA1 SHA512 TLSH

            Login Data For Account.tmp

            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data For Account.tmp
            • Size 40KB
            • SHA256 06aeb2f9c1ee642348c091fb27541c143545354c273055ce30832e0f61aedf81
            • MD5 SHA1 SHA512 SSDEEP TLSH

            __PSScriptPolicyTest_hwd4ttyb.0pt.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hwd4ttyb.0pt.ps1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512 TLSH

            memory/344-50-0x0000000006BB0000-0x0000000006C53000-memory.dmp

            memory/344-49-0x0000000006190000-0x00000000061AE000-memory.dmp

            memory/344-68-0x00000000070E0000-0x00000000070EE000-memory.dmp

            memory/344-67-0x00000000070B0000-0x00000000070C1000-memory.dmp

            memory/344-66-0x0000000007130000-0x00000000071C6000-memory.dmp

            memory/344-65-0x0000000006F20000-0x0000000006F2A000-memory.dmp

            memory/344-70-0x00000000071F0000-0x000000000720A000-memory.dmp

            memory/344-56-0x00000000074F0000-0x0000000007B6A000-memory.dmp

            memory/344-57-0x0000000006EB0000-0x0000000006ECA000-memory.dmp

            memory/344-37-0x0000000005B80000-0x0000000005B9E000-memory.dmp

            memory/344-41-0x00000000752C0000-0x000000007530C000-memory.dmp

            memory/344-69-0x00000000070F0000-0x0000000007104000-memory.dmp

            memory/344-20-0x0000000002270000-0x00000000022A6000-memory.dmp

            memory/344-40-0x0000000006150000-0x0000000006182000-memory.dmp

            memory/344-23-0x0000000004DA0000-0x00000000053C8000-memory.dmp

            memory/344-21-0x00000000023A0000-0x00000000023B0000-memory.dmp

            memory/344-26-0x00000000054F0000-0x0000000005556000-memory.dmp

            memory/344-71-0x00000000071D0000-0x00000000071D8000-memory.dmp

            memory/344-25-0x00000000053D0000-0x0000000005436000-memory.dmp

            memory/344-24-0x0000000004AB0000-0x0000000004AD2000-memory.dmp

            memory/344-19-0x00000000023A0000-0x00000000023B0000-memory.dmp

            memory/344-39-0x0000000005BC0000-0x0000000005C0C000-memory.dmp

            memory/344-34-0x0000000005560000-0x00000000058B4000-memory.dmp

            memory/756-18-0x0000000000400000-0x0000000000490000-memory.dmp

            memory/756-79-0x0000000000400000-0x0000000000490000-memory.dmp

            memory/756-35-0x0000000000400000-0x0000000000490000-memory.dmp

            memory/756-38-0x0000000000400000-0x0000000000490000-memory.dmp

            memory/756-11-0x0000000000400000-0x0000000000490000-memory.dmp

            memory/756-22-0x0000000000400000-0x0000000000490000-memory.dmp

            memory/756-13-0x0000000000400000-0x0000000000490000-memory.dmp

            memory/756-103-0x0000000000400000-0x0000000000490000-memory.dmp

            memory/756-16-0x0000000000400000-0x0000000000490000-memory.dmp

            memory/756-55-0x0000000010000000-0x00000000100F7000-memory.dmp

            memory/756-54-0x0000000010000000-0x00000000100F7000-memory.dmp

            memory/756-51-0x0000000010000000-0x00000000100F7000-memory.dmp

            memory/756-12-0x0000000000400000-0x0000000000490000-memory.dmp

            memory/756-10-0x0000000000400000-0x0000000000490000-memory.dmp

            memory/756-102-0x0000000000400000-0x0000000000490000-memory.dmp

            memory/756-64-0x0000000000400000-0x0000000000490000-memory.dmp

            memory/756-94-0x0000000000400000-0x0000000000490000-memory.dmp

            memory/756-95-0x0000000000400000-0x0000000000490000-memory.dmp

            memory/756-86-0x0000000000400000-0x0000000000490000-memory.dmp

            memory/756-87-0x0000000000400000-0x0000000000490000-memory.dmp

            memory/756-36-0x0000000000400000-0x0000000000490000-memory.dmp

            memory/756-78-0x0000000000400000-0x0000000000490000-memory.dmp

            memory/756-75-0x0000000000400000-0x0000000000490000-memory.dmp

            memory/4768-2-0x00000000057A0000-0x0000000005832000-memory.dmp

            memory/4768-3-0x0000000005710000-0x0000000005720000-memory.dmp

            memory/4768-4-0x0000000005840000-0x000000000584A000-memory.dmp

            memory/4768-1-0x0000000005E20000-0x00000000063C4000-memory.dmp

            memory/4768-5-0x0000000005A30000-0x0000000005ACC000-memory.dmp

            memory/4768-6-0x0000000005DB0000-0x0000000005DCC000-memory.dmp

            memory/4768-7-0x0000000008A00000-0x0000000008AC8000-memory.dmp

            memory/4768-8-0x0000000009370000-0x000000000989C000-memory.dmp

            memory/4768-9-0x00000000098A0000-0x0000000009D6C000-memory.dmp

            memory/4768-0-0x0000000000DD0000-0x0000000000EFC000-memory.dmp