Overview

overview

8

Static

static

3

NepTunnel 2.4.4.exe

windows10-2004-x64

8

NepTunnel 2.4.4.exe

windows11-ltsc_2024-x64

7

Analysis

  • user interaction
    yes
  • max time kernel
    639s
  • max time network
    479s
  • 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, 17:01

Sharing

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General

  • Target
    NepTunnel 2.4.4.exe
  • Size 19.2MB
  • Sample260910-vjnt9avyaz
  • SHA256 e466cde927ae75554ba2340bfd81c8026d7954e001aef55b90818b9e874f7a5d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 25 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NepTunnel 2.4.4.exe
    "C:\Users\Admin\AppData\Local\Temp\NepTunnel 2.4.4.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2884
    • C:\Users\Admin\AppData\Local\Temp\NepTunnel 2.4.4.exe
      "C:\Users\Admin\AppData\Local\Temp\NepTunnel 2.4.4.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      PID:4372
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:6548
    • C:\Windows\System32\SecurityHealthHost.exe
      \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
      1⤵
        PID:6412

      Network

            MITRE ATT&CK Matrix

            Replay Monitor

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            Downloads

            _imaging.cp314-win_amd64.pyd
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\PIL\_imaging.cp314-win_amd64.pyd
            • Size 2.5MB
            • SHA256 b4e06283c347910b5973bd5732159ea9eb26eda48e3eed183be2e3382db26597
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            _imagingft.cp314-win_amd64.pyd
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\PIL\_imagingft.cp314-win_amd64.pyd
            • Size 2.1MB
            • SHA256 7e6910e39fa06b4049f058a781a20bcac40c4844d46037859c76de76852dbb3e
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            VCRUNTIME140.dll
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\VCRUNTIME140.dll
            • Size 117KB
            • SHA256 052ad6a20d375957e82aa6a3c441ea548d89be0981516ca7eb306e063d5027f4
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            VCRUNTIME140_1.dll
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\VCRUNTIME140_1.dll
            • Size 48KB
            • SHA256 6a99bc0128e0c7d6cbbf615fcc26909565e17d4ca3451b97f8987f9c6acbc6c8
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            _bz2.pyd
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_bz2.pyd
            • Size 85KB
            • SHA256 082a761a280b08afecf6fb0509050ffbf7e87d1638ca49466b8b3eb4c85009b4
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            _ctypes.pyd
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_ctypes.pyd
            • Size 139KB
            • SHA256 a11d680d89f054584e6a5b2a03103d8731def86e367aff2f70cce8c6367f9025
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            _hashlib.pyd
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_hashlib.pyd
            • Size 67KB
            • SHA256 0c11671a2c572b4c016be263789f238125419df5711e281acdce8da50d9badda
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            _lzma.pyd
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_lzma.pyd
            • Size 157KB
            • SHA256 2376cd374ce8c2c5ecf573226e563a96975599533f86a5f5eba5bdb705e341bb
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            _socket.pyd
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_socket.pyd
            • Size 85KB
            • SHA256 42b84410269af5a5578679a3fe7b17d75d28f77a0c3c09d589adadd9d2d3e5f6
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            _ssl.pyd
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_ssl.pyd
            • Size 180KB
            • SHA256 bc17486f149f7311839c70b1cda5a22e4546a9670d3136d665df95ff3cc43abd
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            auto.tcl
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_tcl_data\auto.tcl
            • Size 21KB
            • SHA256 08113823951619d659eb03a1f6acd2f9500e1264795219125a5df7b83cabcb99
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            cp1252.enc
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_tcl_data\encoding\cp1252.enc
            • Size 1KB
            • SHA256 741859cf238c3a63bbb20ec6ed51e46451372bb221cfff438297d261d0561c2e
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            pkgIndex.tcl
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_tcl_data\http1.0\pkgIndex.tcl
            • Size 746B
            • SHA256 77265723959c092897c2449c5b7768ca72d0efcd8c505bddbb7a84f6aa401339
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            init.tcl
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_tcl_data\init.tcl
            • Size 25KB
            • SHA256 acacce15658dd7ce8f69b1e3d3a94770a22972a8e906eb3b61cd06f0ecd5db59
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            pkgIndex.tcl
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_tcl_data\opt0.4\pkgIndex.tcl
            • Size 636B
            • SHA256 68accee3eb8d0f134f9472c95425190ec08e7793df20a58d7d35325f42804695
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            package.tcl
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_tcl_data\package.tcl
            • Size 23KB
            • SHA256 b471cec9056b62d562020b14d69d4bd1f92dfe158afc8ba81c6341836211ca46
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            tclIndex
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_tcl_data\tclIndex
            • Size 7KB
            • SHA256 577f042bbe640e2739606a1f76098abdb8bd1d1f31526402fb82b21091644f65
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            tm.tcl
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_tcl_data\tm.tcl
            • Size 11KB
            • SHA256 f0cc13daca21fee538cca757aa09e88a969a85174eda26e61e573dda6c7ba413
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            button.tcl
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_tk_data\button.tcl
            • Size 21KB
            • SHA256 1f5dd8d81b26f16e772e92fd2a22accb785004d0ed3447e54f87005d9c6a07a5
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            entry.tcl
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_tk_data\entry.tcl
            • Size 18KB
            • SHA256 6ac78f764434f932d37e8183aa6db5d04eb1848b774c92f7abc243ecb7d4a59b
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            icons.tcl
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_tk_data\icons.tcl
            • Size 10KB
            • SHA256 1264940e62b9a37967925418e9d0dc0befd369e8c181b9bab3d1607e3cc14b85
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            listbox.tcl
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_tk_data\listbox.tcl
            • Size 14KB
            • SHA256 47c75f9f8348bf8f2c086c57b97b73741218100ca38d10b8abdf2051c95b9801
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            menu.tcl
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_tk_data\menu.tcl
            • Size 39KB
            • SHA256 ae4ee8400174c798337b9c60867cbc94f811b249ebe6dea21ec6f960bcf5f8cb
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            panedwindow.tcl
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_tk_data\panedwindow.tcl
            • Size 5KB
            • SHA256 aa4f87e41ac8297f51150f2a9f787607690d01793456b93f0939c54d394731f9
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            pkgIndex.tcl
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_tk_data\pkgIndex.tcl
            • Size 376B
            • SHA256 6127926b94db2992ab450fc6cc2ec3d071f7bbc856656d0ae20cc3fd4036f547
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            scale.tcl
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_tk_data\scale.tcl
            • Size 8KB
            • SHA256 0747a387fdd1b2c7135eceae7b392ed52e1d1ebf3ffa90febe886dbc0981eb74
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            tk.tcl
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_tk_data\tk.tcl
            • Size 23KB
            • SHA256 b7fd24177b17f67da2ca671f711309c65cf246be1fd0cf4f1ab8f3ea9ca2c3f1
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            _tkinter.pyd
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_tkinter.pyd
            • Size 67KB
            • SHA256 f1d7eebfe85d0b3ef56e9db4d23fe3421de7ed77bfd8bea1df83a1ae96600fea
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            _uuid.pyd
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_uuid.pyd
            • Size 27KB
            • SHA256 d75d04aa989f8be9666505ac11339416719e38fc0701047388b061b4e576030a
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            _wmi.pyd
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_wmi.pyd
            • Size 39KB
            • SHA256 a299a6caf7241cebb0081c3ed9e98f815c61feee3e4813c1fd32369bd3fe6f5e
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            _zstd.pyd
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\_zstd.pyd
            • Size 491KB
            • SHA256 8f04a54778d4f21202f1bb9cfd5d080c5c5022158016dcaaf5908f7e2350270c
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            base_library.zip
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\base_library.zip
            • Size 1.3MB
            • SHA256 ca3df230d0f50b0a16a4a9da01998f03ac1b560a1e209a942e2e5126d61a91c0
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            blue.json
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\customtkinter\assets\themes\blue.json
            • Size 4KB
            • SHA256 c9417470c16ced7a43d6c4a8e027afa6edc62c24d5aee7c4c2dcd11385964d3b
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            libcrypto-3.dll
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\libcrypto-3.dll
            • Size 5.0MB
            • SHA256 e03dd02fdcfb791981c9962827cfcf495f2a47a514c1526efb57f847a9df514a
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            libffi-8.dll
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\libffi-8.dll
            • Size 38KB
            • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            libssl-3.dll
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\libssl-3.dll
            • Size 776KB
            • SHA256 1e4bc0638682bfcbb36f4465d6a2e9944d917a60f05ecc8ddf9e96847e05e13f
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            python314.dll
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\python314.dll
            • Size 6.4MB
            • SHA256 7ffe3ab11342db03cc18b026f27485c0f74f5bf10f239f1f6573394900596394
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            select.pyd
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\select.pyd
            • Size 32KB
            • SHA256 a0f7b2e00144794e497d11fffc14e7a968f59e207c702ca7b262b7037065b5ba
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            tcl86t.dll
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\tcl86t.dll
            • Size 1.8MB
            • SHA256 2fd6035e9e26b90ee5cb5e6f22f9dbc2a3576c81a5da4c673e0d36a540c55c2a
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            msgcat-1.6.1.tm
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\tcl8\8.5\msgcat-1.6.1.tm
            • Size 34KB
            • SHA256 adca186be560f2236265f538d4cb6df1171bed91192118796988bb9c08a4bc7c
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            tk86t.dll
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\tk86t.dll
            • Size 1.5MB
            • SHA256 abcabe172f982a2969ef45dd2c79630c2dd84562b657e11dd97cf2bcfce095c7
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            zlib1.dll
            • Path C:\Users\Admin\AppData\Local\Temp\_MEI28842\zlib1.dll
            • Size 144KB
            • SHA256 3245e82143491f36fd67464949be58fbb7ce58b29607ddb305c6772491784d39
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            memory/4372-1083-0x00007FFB1D8A0000-0x00007FFB1D8C9000-memory.dmp
            Download