Analysis

  • max time kernel
    49s
  • max time network
    50s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/07/2026, 17:06

Errors

Reason
Machine shutdown

General

  • Target
    576c3f3d3903969173fbdaaca2f2ad45ccb3dfc3516be939c4b05d12e592c1bc.exe
  • Size 9.5MB
  • Sample260723-vmrqbatbnb
  • SHA256 576c3f3d3903969173fbdaaca2f2ad45ccb3dfc3516be939c4b05d12e592c1bc
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 9 IoCs
  • Drops file in Windows directory 3 IoCs
  • Checks SCSI registry key(s) 3 TTPs 16 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 40 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\576c3f3d3903969173fbdaaca2f2ad45ccb3dfc3516be939c4b05d12e592c1bc.exe
    "C:\Users\Admin\AppData\Local\Temp\576c3f3d3903969173fbdaaca2f2ad45ccb3dfc3516be939c4b05d12e592c1bc.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5536
    • C:\Windows\Temp\7zS91D6.tmp\H2OFFT-Wx64.exe
      .\H2OFFT-Wx64.exe -sfx7z "C:\Users\Admin\AppData\Local\Temp"
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • Checks SCSI registry key(s)
      • Modifies system certificate store
      • Suspicious use of SetWindowsHookEx
      PID:4512
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "4" "0" "C:\Users\Admin\AppData\Local\Temp\{8f545584-c5c4-4c40-a92c-76876e66501b}\h2offt.inf" "9" "4ddc5e3bb" "0000000000000180" "WinSta0\Default" "000000000000017C" "208" "c:\windows\temp\7zs91d6.tmp"
    1⤵
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:4648
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "2" "211" "ROOT\INSYDEDEVICE\0000" "C:\Windows\System32\DriverStore\FileRepository\h2offt.inf_amd64_bc6f1d33c79610d5\h2offt.inf" "oem1.inf:ed86ca1156c0ee7a:Insyde_Device64:9.31.20.62:{416c2604-443b-436f-9e1d-607bdc3cc785}\h2offt," "4ddc5e3bb" "0000000000000170" "496b"
    1⤵
      PID:5996

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          h2offt.inf_amd64_bc6f1d33c79610d5.ini

          • Path C:\Windows\System32\DriverStore\FileRepository\h2offt.inf_amd64_bc6f1d33c79610d5.ini
          • Size 414B
          • SHA256 f414f57cdfc603a90cbe576970959dfe9423fab1d8cd30a7d7e8942851c16f65
          • MD5 SHA1 SHA512 TLSH

          FWUpdLcl.exe

          • Path C:\Windows\Temp\7zS91D6.tmp\FWUpdLcl.exe
          • Size 220KB
          • SHA256 2f98f753ffe3bc5718c040a88f3dc87e63b527dd41b9c83a3105caff16c2f203
          • MD5 SHA1 SHA512 SSDEEP TLSH

          FlsHook.exe

          • Path C:\Windows\Temp\7zS91D6.tmp\FlsHook.exe
          • Size 41KB
          • SHA256 1dd8e0705b0910dbdc4b5e3b76afb087b0821feb5a50241fd833a88591145a14
          • MD5 SHA1 SHA512 SSDEEP TLSH

          H2OFFT-Wx64.exe

          • Path C:\Windows\Temp\7zS91D6.tmp\H2OFFT-Wx64.exe
          • Size 2.3MB
          • SHA256 1d5fb7c6a39ddf6af4332728f90633da56d7dc90cc11dbffda839db36b9ee4bc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          H2OFFT.inf

          • Path C:\Windows\Temp\7zS91D6.tmp\H2OFFT.inf
          • Size 6KB
          • SHA256 91c9dce565b3c8bec2c1eea1cef81f78059a65dc3b1f5ca75488a6b17e23d630
          • MD5 SHA1 SHA512 SSDEEP TLSH

          platform.ini

          • Path C:\Windows\Temp\7zS91D6.tmp\platform.ini
          • Size 52KB
          • SHA256 162af5480c3346bca036602175e2759e1a56b35db37c57c1bd8166b6e79352ef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          H2OFFT.cat

          • Path \??\c:\windows\temp\7zs91d6.tmp\H2OFFT.cat
          • Size 10KB
          • SHA256 3bd5fe67b1a2c89158566f55cc06b670d91f5842841b716a1d4120912c6d5f96
          • MD5 SHA1 SHA512 SSDEEP TLSH

          H2OFFT64.sys

          • Path \??\c:\windows\temp\7zs91d6.tmp\H2OFFT64.sys
          • Size 46KB
          • SHA256 7c80c7218884e8b5c660c56cf7bfed580c02d0df6b97807097d6cd2f1f9fc9a1
          • MD5 SHA1 SHA512 SSDEEP TLSH