Analysis

  • user interaction
    yes
  • max time kernel
    300s
  • max time network
    186s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    17/07/2026, 10:50

General

  • Target
    lcb_spoof_crack(1).exe
  • Size 4.9MB
  • Sample260717-mxnseads2v
  • SHA256 62c919a03755b9dbf80dcf27b00b8e9543d8053df8f0c31e507f98c6f708c2fb
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: KillMBR

    KillMBR is a trojan that attempts to overwrite the Master Boot Record.

  • Detects KillMBR 2 IoCs
  • Modifies visibility of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 10 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Windows directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

  • Modifies registry class 7 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 31 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\lcb_spoof_crack(1).exe
    "C:\Users\Admin\AppData\Local\Temp\lcb_spoof_crack(1).exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4196
    • C:\Users\Admin\AppData\Local\Temp\Icb Temp Woofer.exe
      "C:\Users\Admin\AppData\Local\Temp\Icb Temp Woofer.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5100
      • \??\c:\users\admin\appdata\local\temp\icb temp woofer.exe 
        "c:\users\admin\appdata\local\temp\icb temp woofer.exe "
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:548
      • C:\Windows\Resources\Themes\icsys.icn.exe
        C:\Windows\Resources\Themes\icsys.icn.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3244
    • C:\Users\Admin\AppData\Local\Temp\lcb_spoof_crack.exe
      "C:\Users\Admin\AppData\Local\Temp\lcb_spoof_crack.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2240
      • \??\c:\users\admin\appdata\local\temp\lcb_spoof_crack.exe 
        c:\users\admin\appdata\local\temp\lcb_spoof_crack.exe 
        3⤵
        • Executes dropped EXE
        PID:4056
      • C:\Windows\Resources\Themes\icsys.icn.exe
        C:\Windows\Resources\Themes\icsys.icn.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2564
        • \??\c:\windows\resources\themes\explorer.exe
          c:\windows\resources\themes\explorer.exe
          4⤵
          • Modifies visibility of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in System32 directory
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:764
          • \??\c:\windows\resources\spoolsv.exe
            c:\windows\resources\spoolsv.exe SE
            5⤵
            • Executes dropped EXE
            • Drops file in Windows directory
            • System Location Discovery: System Language Discovery
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:3540
            • \??\c:\windows\resources\svchost.exe
              c:\windows\resources\svchost.exe
              6⤵
              • Modifies visibility of hidden/system files in Explorer
              • Executes dropped EXE
              • Adds Run key to start application
              • Drops file in System32 directory
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: GetForegroundWindowSpam
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:2640
              • \??\c:\windows\resources\spoolsv.exe
                c:\windows\resources\spoolsv.exe PR
                7⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                • Suspicious use of SetWindowsHookEx
                PID:372
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:4732
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:1100
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:3340
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:1888
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:2580
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:1892

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        Icb Temp Woofer.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Icb Temp Woofer.exe
        • Size 149KB
        • SHA256 5536a0db0635e1e08bec0edc99d1d2e3359cb797c850d69844a16ab4cc433b2c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        icb temp woofer.exe 

        • Path C:\Users\Admin\AppData\Local\Temp\icb temp woofer.exe 
        • Size 14KB
        • SHA256 a3d5715a81f2fbeb5f76c88c9c21eeee87142909716472f911ff6950c790c24d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        lcb_spoof_crack.exe

        • Path C:\Users\Admin\AppData\Local\Temp\lcb_spoof_crack.exe
        • Size 7.7MB
        • SHA256 c18160d02ee53d22242a534ba6a419baeb05d8193358110fae682dc408bd824c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        lcb_spoof_crack.exe 

        • Path C:\Users\Admin\AppData\Local\Temp\lcb_spoof_crack.exe 
        • Size 7.6MB
        • SHA256 c38ce83359b11c63b187f1fe5d3c3a8ef2eac3377d67eada3299758f24d33cc5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        explorer.exe

        • Path C:\Windows\Resources\Themes\explorer.exe
        • Size 135KB
        • SHA256 238dd37fe326159b1e1c8f5d64c18332e6ed1ff9fad39d417a56925aa3118e65
        • MD5 SHA1 SHA512 SSDEEP TLSH

        icsys.icn.exe

        • Path C:\Windows\Resources\Themes\icsys.icn.exe
        • Size 135KB
        • SHA256 f3166d575472c82f10b4712a3ec751b9e22271261b332d3ad8887407f8b05501
        • MD5 SHA1 SHA512 SSDEEP TLSH

        icsys.icn.exe

        • Path C:\Windows\Resources\Themes\icsys.icn.exe
        • Size 135KB
        • SHA256 b6ea22a6d47b93a607bffad199ef157bc8579d00e9ab6ed08be553188f74cde3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        spoolsv.exe

        • Path C:\Windows\Resources\spoolsv.exe
        • Size 135KB
        • SHA256 2aeff31c962c049f2f68ea2d698dcfa6bcf393dcfe976f2e6e64403b1c8d3aff
        • MD5 SHA1 SHA512 SSDEEP TLSH

        svchost.exe

        • Path C:\Windows\Resources\svchost.exe
        • Size 135KB
        • SHA256 e576dfbaf731fa2d06d7b16fb6d2f5470476b205f228fb064f87dafa8b7fff04
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/372-89-0x0000000000400000-0x000000000041F000-memory.dmp

        memory/764-93-0x0000000000400000-0x000000000041F000-memory.dmp

        memory/2240-91-0x0000000000400000-0x000000000041F000-memory.dmp

        memory/2240-33-0x0000000000400000-0x000000000041F000-memory.dmp

        memory/2564-92-0x0000000000400000-0x000000000041F000-memory.dmp

        memory/2640-94-0x0000000000400000-0x000000000041F000-memory.dmp

        memory/3244-64-0x0000000000400000-0x000000000041F000-memory.dmp

        memory/3540-90-0x0000000000400000-0x000000000041F000-memory.dmp

        memory/5100-65-0x0000000000400000-0x000000000041F000-memory.dmp

        memory/5100-27-0x0000000000400000-0x000000000041F000-memory.dmp