Overview

overview

7

Static

static

3

gemm.exe

windows10-2004-x64

7

gemm.exe

windows11-ltsc_2024-x64

Analysis

  • user interaction
    yes
  • max time kernel
    22s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/06/2026, 22:30

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Errors

Reason
Machine shutdown

General

  • Target
    gemm.exe
  • Size 48.5MB
  • Sample260629-2e441ahy2n
  • SHA256 e02f383c0885aa49b6b7352f13a17b8b6c4eb3f10d36c2d08e138a4b90a91fde
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
executionpersistence

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 27 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\gemm.exe
    "C:\Users\Admin\AppData\Local\Temp\gemm.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4068
    • C:\Users\Admin\AppData\Local\Temp\gemm.exe
      "C:\Users\Admin\AppData\Local\Temp\gemm.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2216
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "schtasks /create /tn "GemmLock" /tr "\""C:\Users\Admin\AppData\Roaming\Gemm\gemm.exe"\"" /sc onlogon /rl highest /f"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1368
        • C:\Windows\system32\schtasks.exe
          schtasks /create /tn "GemmLock" /tr "\""C:\Users\Admin\AppData\Roaming\Gemm\gemm.exe"\"" /sc onlogon /rl highest /f
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:4968
  • C:\Users\Admin\AppData\Roaming\Gemm\gemm.exe
    "C:\Users\Admin\AppData\Roaming\Gemm\gemm.exe"
    1⤵
    • Executes dropped EXE
    PID:1972

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        _imaging.cp312-win_amd64.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\PIL\_imaging.cp312-win_amd64.pyd
        • Size 2.5MB
        • SHA256 6dfd10a98bc81a1999e2b5ddb8be8c1cfb9a2c8e10258c56a52ee0d8930d3d7f
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _imagingft.cp312-win_amd64.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\PIL\_imagingft.cp312-win_amd64.pyd
        • Size 2.1MB
        • SHA256 fe615fedf586c7206a74bedecddbf58623ffdf57e90ca2f8bca062aebae138c0
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        MSVCP140.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\PyQt5\Qt5\bin\MSVCP140.dll
        • Size 576KB
        • SHA256 88f55d86b50b0a7e55e71ad2d8f7552146ba26e927230daf2e26ad3a971973c5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        MSVCP140_1.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\PyQt5\Qt5\bin\MSVCP140_1.dll
        • Size 30KB
        • SHA256 446c48c1224c289bd3080087fe15d6759416d64f4136addf30086abd5415d83f
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        Qt5Core.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\PyQt5\Qt5\bin\Qt5Core.dll
        • Size 5.7MB
        • SHA256 8d2ff4ce9096ddccc4f4cd62c2e41fc854cfd1b0d6e8d296645a7f5fd4ae565a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        VCRUNTIME140_1.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\PyQt5\Qt5\bin\VCRUNTIME140_1.dll
        • Size 43KB
        • SHA256 1f0f5f2ce671e0f68cf96176721df0e5e6f527c8ca9cfa98aa875b5a3816d460
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        QtCore.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\PyQt5\QtCore.pyd
        • Size 2.4MB
        • SHA256 d6e45fd8c3b3f93f52c4d1b6f9e3ee220454a73f80f65f3d70504bd55415ea37
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        sip.cp312-win_amd64.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\PyQt5\sip.cp312-win_amd64.pyd
        • Size 117KB
        • SHA256 3bf0eb6e243d978574ff6bfcfa28c884b7364cdd6799b205977aa0505718f591
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        VCRUNTIME140.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\VCRUNTIME140.dll
        • Size 116KB
        • SHA256 4d292623516f65c80482081e62d5dadb759dc16e851de5db24c3cbb57b87db83
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _bz2.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\_bz2.pyd
        • Size 83KB
        • SHA256 f81dc49eac5ecc528e628175add2ff6bda695a93ea76671d7187155aa6326abb
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _ctypes.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\_ctypes.pyd
        • Size 122KB
        • SHA256 be9828a877e412b48d75addc4553d2d2a60ae762a3551f9731b50cae7d65b570
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _lzma.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\_lzma.pyd
        • Size 156KB
        • SHA256 a6e2a5bb7a33ad9054f178786a031a46ea560faeef1fb96259331500aae9154c
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _queue.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\_queue.pyd
        • Size 31KB
        • SHA256 3f57f29abd86d4dc8f4ca6c3f190ebb57d429143d98f0636ff5117e08ed81f9b
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _socket.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\_socket.pyd
        • Size 81KB
        • SHA256 7daff6aa3851a913ed97995702a5dfb8a27cb7cf00fb496597be777228d7564a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        auto.tcl
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\_tcl_data\auto.tcl
        • Size 21KB
        • SHA256 517204ee436d08efc287abc97433c3bffcaf42ec6592a3009b9fd3b985ad772c
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        cp1252.enc
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\_tcl_data\encoding\cp1252.enc
        • Size 1KB
        • SHA256 741859cf238c3a63bbb20ec6ed51e46451372bb221cfff438297d261d0561c2e
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        pkgIndex.tcl
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\_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\_MEI40682\_tcl_data\init.tcl
        • Size 25KB
        • SHA256 7a103a85413988456c2ad615c879bbcb4d91435bcfbbe23393e0eb52b56af6e2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        pkgIndex.tcl
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\_tcl_data\opt0.4\pkgIndex.tcl
        • Size 620B
        • SHA256 6a4abd2c519a745325c26fb23be7bbf95252d653a24806eb37fd4aa6a6479afe
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        package.tcl
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\_tcl_data\package.tcl
        • Size 23KB
        • SHA256 f46ab61cdebe3aa45fa7e61a48930d64a0d0e7e94d04d6bf244f48c36cafe948
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        tclIndex
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\_tcl_data\tclIndex
        • Size 5KB
        • SHA256 ddf7e42def37888ad0a564aa4f8ca95f4eec942cebebfca851d35515104d5c89
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        tm.tcl
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\_tcl_data\tm.tcl
        • Size 11KB
        • SHA256 4b7ed9fd2363d6876092db3f720cbddf97e72b86b519403539ba96e1c815ed8f
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        pkgIndex.tcl
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\_tk_data\pkgIndex.tcl
        • Size 376B
        • SHA256 a5d208887a94832328c3a33928a80f3b46aa205c20db4f050a47d940e94071b4
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        tk.tcl
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\_tk_data\tk.tcl
        • Size 23KB
        • SHA256 1d5e7518afc1382e36bf13fc5196c8a7cd93a4e9d24acf445522564245a489b0
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _tkinter.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\_tkinter.pyd
        • Size 62KB
        • SHA256 70439ee9a05583d1c4575dce3343b2a1884700d9e0264c3ada9701829483a076
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _wmi.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\_wmi.pyd
        • Size 35KB
        • SHA256 1a105311a5ed88a31472b141b4b6daa388a1cd359fe705d9a7a4aba793c5749f
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        base_library.zip
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\base_library.zip
        • Size 1.3MB
        • SHA256 ee188219eb2878453e9d00376b7b63f398f5a4ec872026678fdde2dd522111ce
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        libffi-8.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\libffi-8.dll
        • Size 38KB
        • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        python3.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\python3.dll
        • Size 66KB
        • SHA256 d2e348e615a5d3b08b0bac29b91f79b32f0c1d0be48976450042462466b51123
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        python312.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\python312.dll
        • Size 6.6MB
        • SHA256 c98ba3354a7d1f69bdca42560feec933ccba93afcc707391049a065e1079cddb
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        select.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\select.pyd
        • Size 29KB
        • SHA256 680df34fb908c49410ac5f68a8c05d92858acd111e62d1194d15bdce520bd6c3
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        tcl86t.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\tcl86t.dll
        • Size 1.7MB
        • SHA256 c2966941f116fab99f48ab9617196b43a5ee2fd94a8c70761bda56cb334daa03
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        msgcat-1.6.1.tm
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\tcl8\8.5\msgcat-1.6.1.tm
        • Size 34KB
        • SHA256 6774519f179872ec5292523f2788b77b2b839e15665037e097a0d4edddd1c6fb
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        tk86t.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\tk86t.dll
        • Size 1.5MB
        • SHA256 c6ffe2238134478d8cb1c695d57e794516f3790e211ff519f551e335230de7de
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ucrtbase.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\ucrtbase.dll
        • Size 1.3MB
        • SHA256 2e5fb14b7bf8540278f3614a12f0226e56a7cc9e64b81cbd976c6fcf2f71cbfb
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        winsound.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\winsound.pyd
        • Size 29KB
        • SHA256 9885b3d18903a2ef27428c7c9760493111cc97330ff0afcb57199964092e86bf
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        zlib1.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI40682\zlib1.dll
        • Size 143KB
        • SHA256 837efb838cb91428c8c0dfb65d5af1e69823ff1594780eb8c8e9d78f7c4b2fc1
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/2216-1142-0x00007FFF62E30000-0x00007FFF63093000-memory.dmp
        Download

        memory/2216-1181-0x00007FFF62D60000-0x00007FFF62D8A000-memory.dmp
        Download

        memory/2216-1182-0x000002174F320000-0x000002174F321000-memory.dmp
        Download