Analysis

  • max time kernel
    150s
  • max time network
    127s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    12/10/2026, 18:57

General

  • Target
    fi.exe
  • Size 10.6MB
  • Sample261012-xmef4aws5q
  • SHA256 b15261829981d69e83a94e41b4640d724678fb01c5a18fe49a8e538f58f8bfb9
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Loads dropped DLL 12 IoCs
  • Executes a command shell one-liner 1 TTPs 3 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • 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.

  • Delays execution with timeout.exe 12 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fi.exe
    "C:\Users\Admin\AppData\Local\Temp\fi.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1612
    • C:\Users\Admin\AppData\Local\Temp\fi.exe
      "C:\Users\Admin\AppData\Local\Temp\fi.exe"
      2⤵
      • Loads dropped DLL
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious use of WriteProcessMemory
      PID:252
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "start "hydra" cmd /c "for /L %i in (5,-1,0) do (echo %i & timeout /t 1 /nobreak >nul) & echo hello & timeout /t 2 /nobreak >nul""
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:2768
        • C:\Windows\system32\cmd.exe
          cmd /c "for /L %i in (5,-1,0) do (echo %i & timeout /t 1 /nobreak >nul) & echo hello & timeout /t 2 /nobreak >nul"
          4⤵
          • Executes a command shell one-liner
          • Suspicious use of WriteProcessMemory
          PID:5828
          • C:\Windows\system32\timeout.exe
            timeout /t 1 /nobreak
            5⤵
            • Delays execution with timeout.exe
            PID:2864
          • C:\Windows\system32\timeout.exe
            timeout /t 2 /nobreak
            5⤵
            • Delays execution with timeout.exe
            PID:6060
          • C:\Windows\system32\timeout.exe
            timeout /t 1 /nobreak
            5⤵
            • Delays execution with timeout.exe
            PID:5664
          • C:\Windows\system32\timeout.exe
            timeout /t 2 /nobreak
            5⤵
            • Delays execution with timeout.exe
            PID:5820
          • C:\Windows\system32\timeout.exe
            timeout /t 1 /nobreak
            5⤵
            • Delays execution with timeout.exe
            PID:1400
          • C:\Windows\system32\timeout.exe
            timeout /t 2 /nobreak
            5⤵
            • Delays execution with timeout.exe
            PID:4108
          • C:\Windows\system32\timeout.exe
            timeout /t 1 /nobreak
            5⤵
            • Delays execution with timeout.exe
            PID:4716
          • C:\Windows\system32\timeout.exe
            timeout /t 2 /nobreak
            5⤵
            • Delays execution with timeout.exe
            PID:1920
          • C:\Windows\system32\timeout.exe
            timeout /t 1 /nobreak
            5⤵
            • Delays execution with timeout.exe
            PID:1268
          • C:\Windows\system32\timeout.exe
            timeout /t 2 /nobreak
            5⤵
            • Delays execution with timeout.exe
            PID:4844
          • C:\Windows\system32\timeout.exe
            timeout /t 1 /nobreak
            5⤵
            • Delays execution with timeout.exe
            PID:4168
          • C:\Windows\system32\timeout.exe
            timeout /t 2 /nobreak
            5⤵
            • Delays execution with timeout.exe
            PID:6020
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "ver"
        3⤵
        • Executes a command shell one-liner
        PID:5448

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        VCRUNTIME140.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI0000064c2\VCRUNTIME140.dll
        • Size 121KB
        • SHA256 d5e4d9a3e835fa679450145d6a7d94e36573a509317111904d9b3712c30d9066
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _bz2.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI0000064c2\_bz2.pyd
        • Size 71KB
        • SHA256 c46b2979e25b66827d0361a559e12879b8a250cf5c8771a54db94e4808e00685
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _cffi_backend.cp311-win_amd64.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI0000064c2\_cffi_backend.cp311-win_amd64.pyd
        • Size 175KB
        • SHA256 0b5c05bf3e9da14c33566d2c546fb7618ac7fc2b89365a66cfb1082ffe3d898d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _decimal.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI0000064c2\_decimal.pyd
        • Size 237KB
        • SHA256 5566518542e3ee6dd8cbecbae76e40a30015e82cc04ee4ea768a3cc9fb53f4ce
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _hashlib.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI0000064c2\_hashlib.pyd
        • Size 52KB
        • SHA256 5f17438d0e3091e6006048c873ce43e7e33d842a2a736500815a56aa8be4bf01
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _lzma.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI0000064c2\_lzma.pyd
        • Size 149KB
        • SHA256 0369454200d4b8deb3959415aae9bb9926e681b14bcb4427e432381fe57ecb27
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _socket.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI0000064c2\_socket.pyd
        • Size 66KB
        • SHA256 9bc8b64506c21e94457da274573e85777a06b67d4d6b98dddeab4b97172fcef1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        base_library.zip

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI0000064c2\base_library.zip
        • Size 1.4MB
        • SHA256 6af974e12de7b11a4ae9621f0bd2e244b15fcba4f82731d3d3b12f6111184351
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _rust.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI0000064c2\cryptography\hazmat\bindings\_rust.pyd
        • Size 9.5MB
        • SHA256 6a42262974f0e086c1f2defaff4ccd9fb25046cf193422135e2dda5b4b29b2a2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libcrypto-3-x64.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI0000064c2\libcrypto-3-x64.dll
        • Size 7.6MB
        • SHA256 4ef4f59ddc79f232a76e7eee7a7fd91792974ba885011b00acada8debfc14173
        • MD5 SHA1 SHA512 SSDEEP TLSH

        python3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI0000064c2\python3.dll
        • Size 54KB
        • SHA256 8fda4948f6fc2bed1c7d1ece9596a3450c772775e48046c0bf701517d78ae9e3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        python311.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI0000064c2\python311.dll
        • Size 5.6MB
        • SHA256 06cb189016f6d5a593aba0e4c53ae972f2b7a257373c502e7da80f35f37dc1c0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        select.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI0000064c2\select.pyd
        • Size 18KB
        • SHA256 ab91970ff8458849e59711e323dc49f09bafe7a650ddcf797fd7242343ebc49d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        unicodedata.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI0000064c2\unicodedata.pyd
        • Size 1.1MB
        • SHA256 aa489115a8139de6aa0db51e2c8771c78df430fd7c3c65b714f385833ccc91fe
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ConvertSubmit.doc.locked

        • Path C:\Users\Admin\Downloads\ConvertSubmit.doc.locked
        • Size 378KB
        • SHA256 48084d0718d78a2a366d9d2f5d1ffc2fc9465140a5a0189e4bbb8bdb3e669432
        • MD5 SHA1 SHA512 SSDEEP TLSH

        EnableUnregister.xlsx.locked

        • Path C:\Users\Admin\Downloads\EnableUnregister.xlsx.locked
        • Size 945KB
        • SHA256 bf641082c2d3cf5f91c5d4cdc4a1f60087117e0b6c0f6646275160e3fb82fb2d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        desktop.ini.locked

        • Path C:\Users\Admin\Downloads\desktop.ini.locked
        • Size 574B
        • SHA256 aab3ae27b719dcc0d13bb9a873a828b2fef0ab4fc3ccc93e4baeb461dfb924ba
        • MD5 SHA1 SHA512 TLSH