Analysis

  • max time kernel
    148s
  • max time network
    127s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/09/2026, 11:15

General

  • Target
    73297baf09544ba19037911c2a5352069622ebdbccae2ae15d7150c718dd81f4.exe
  • Size 1.2MB
  • Sample260910-ncv7esscmb
  • SHA256 73297baf09544ba19037911c2a5352069622ebdbccae2ae15d7150c718dd81f4
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • remcos

Version
  • 7.3.1 Pro

Botnet
  • RemoteHost

C2
  • 158.94.209.216:2404

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

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-PX5QL2

  • 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.

  • Modifies Windows Defender DisableAntiSpyware settings 3 TTPs 1 IoCs
  • 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.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\73297baf09544ba19037911c2a5352069622ebdbccae2ae15d7150c718dd81f4.exe
    "C:\Users\Admin\AppData\Local\Temp\73297baf09544ba19037911c2a5352069622ebdbccae2ae15d7150c718dd81f4.exe"
    1⤵
    • Modifies Windows Defender DisableAntiSpyware settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4144
    • 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\73297baf09544ba19037911c2a5352069622ebdbccae2ae15d7150c718dd81f4.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5220
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
        PID:2612
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
        2⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4916
        • C:\ProgramData\Remcos\remcos.exe
          "C:\ProgramData\Remcos\remcos.exe"
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:1308

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          remcos.exe

          • Path C:\ProgramData\Remcos\remcos.exe
          • Size 249KB
          • SHA256 151d0125c20cdde578d02de3f2a56eb904870a887bb7f1c59bf61471da231916
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1308-33-0x0000000004F60000-0x00000000050BA000-memory.dmp

          memory/1308-32-0x0000000004D80000-0x0000000004D9A000-memory.dmp

          memory/1308-31-0x0000000000590000-0x00000000005D0000-memory.dmp

          memory/4144-10-0x0000000008AB0000-0x0000000008BD4000-memory.dmp

          memory/4144-2-0x00000000054C0000-0x0000000005A7A000-memory.dmp

          memory/4144-5-0x0000000004FA0000-0x000000000503C000-memory.dmp

          memory/4144-7-0x0000000005260000-0x0000000005272000-memory.dmp

          memory/4144-8-0x0000000074582000-0x0000000074583000-memory.dmp

          memory/4144-26-0x0000000074570000-0x0000000074D2C000-memory.dmp

          memory/4144-0-0x0000000074582000-0x0000000074583000-memory.dmp

          memory/4144-1-0x0000000000320000-0x0000000000462000-memory.dmp

          memory/4144-9-0x0000000074570000-0x0000000074D2C000-memory.dmp

          memory/4144-6-0x0000000074570000-0x0000000074D2C000-memory.dmp

          memory/4144-4-0x0000000004EE0000-0x0000000004EEA000-memory.dmp

          memory/4144-3-0x0000000004E30000-0x0000000004EC2000-memory.dmp

          memory/4916-18-0x0000000000400000-0x0000000000490000-memory.dmp

          memory/4916-14-0x0000000000400000-0x0000000000490000-memory.dmp

          memory/4916-30-0x0000000000400000-0x0000000000490000-memory.dmp

          memory/4916-12-0x0000000000400000-0x0000000000490000-memory.dmp

          memory/4916-11-0x0000000000400000-0x0000000000490000-memory.dmp

          memory/5220-25-0x0000000005710000-0x0000000005A6B000-memory.dmp

          memory/5220-16-0x0000000005000000-0x000000000564A000-memory.dmp

          memory/5220-21-0x0000000004F00000-0x0000000004F66000-memory.dmp

          memory/5220-20-0x0000000004E60000-0x0000000004E82000-memory.dmp

          memory/5220-27-0x0000000005C30000-0x0000000005C4E000-memory.dmp

          memory/5220-28-0x0000000005CF0000-0x0000000005D3C000-memory.dmp

          memory/5220-13-0x0000000002420000-0x0000000002456000-memory.dmp

          memory/5220-17-0x0000000074570000-0x0000000074D2C000-memory.dmp

          memory/5220-19-0x0000000002410000-0x0000000002420000-memory.dmp

          memory/5220-22-0x0000000004F70000-0x0000000004FD6000-memory.dmp

          memory/5220-15-0x0000000074570000-0x0000000074D2C000-memory.dmp

          memory/5220-34-0x0000000006220000-0x0000000006256000-memory.dmp

          memory/5220-35-0x0000000070910000-0x000000007095C000-memory.dmp

          memory/5220-38-0x0000000006260000-0x0000000006280000-memory.dmp

          memory/5220-39-0x0000000006E50000-0x0000000006EF3000-memory.dmp

          memory/5220-40-0x00000000075F0000-0x0000000007C6C000-memory.dmp

          memory/5220-41-0x0000000006FB0000-0x0000000006FCA000-memory.dmp

          memory/5220-42-0x0000000007020000-0x000000000702A000-memory.dmp

          memory/5220-43-0x0000000007220000-0x00000000072B6000-memory.dmp

          memory/5220-45-0x0000000074570000-0x0000000074D2C000-memory.dmp