Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/08/2026, 23:59

General

  • Target
    update_win64.exe
  • Size 20.4MB
  • Sample260830-31t2labm6t
  • SHA256 a9b829ded58680d568bfb61f61d56be1354fce78a798720cc8b86d169f0645e6
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
upx

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • UPX packed file 29 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\update_win64.exe
    "C:\Users\Admin\AppData\Local\Temp\update_win64.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3420
    • C:\Users\Admin\AppData\Local\Temp\update_win64.exe
      "C:\Users\Admin\AppData\Local\Temp\update_win64.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2584
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        C:\Users\Admin\AppData\Local\Temp\svchost.exe
        3⤵
        • Executes dropped EXE
        PID:2548

Network

        MITRE ATT&CK Matrix

        Replay Monitor

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        Downloads

        VCRUNTIME140.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\VCRUNTIME140.dll
        • Size 95KB
        • SHA256 9d2b40f0395cc5d1b4d5ea17b84970c29971d448c37104676db577586d4ad1b1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _bz2.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\_bz2.pyd
        • Size 44KB
        • SHA256 79c0dd50342e84891abbaa07ec55c29dfeb83aabd0c53eb3a6997204fe2dc7f2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _decimal.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\_decimal.pyd
        • Size 102KB
        • SHA256 9a0607dc433f53266e95ca0cf7fa239f24b935f7a38973d78720e426b7e7e705
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _hashlib.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\_hashlib.pyd
        • Size 32KB
        • SHA256 1358ecfb6c998ee99176dea5102bb61eac6edbf503246e89e654e3a566e55252
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _lzma.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\_lzma.pyd
        • Size 82KB
        • SHA256 594ce33fff0e02ea611d42cadab1a806a8810537036466c33cc955f7da61a050
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _socket.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\_socket.pyd
        • Size 39KB
        • SHA256 6d52997d9ea88ad1db137bc0fbd9c9a6c28e6074294e494723225c18251a1eca
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-console-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-console-l1-1-0.dll
        • Size 22KB
        • SHA256 28e166c70bccf4b25353e690b8c6d27df60e3cc71f41b958807e62ee13272117
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-datetime-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-datetime-l1-1-0.dll
        • Size 22KB
        • SHA256 504a19f80dee206259f8957cfe823b71d8f58e5021ad8ce8f01d401187578224
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-debug-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-debug-l1-1-0.dll
        • Size 22KB
        • SHA256 ec991dddb52d7ecb23d6df3212d488293b6c6ba8abede25219f49fc93f3682a6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-errorhandling-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-errorhandling-l1-1-0.dll
        • Size 22KB
        • SHA256 e34e12f7a57b5158fef0f2d717f4ceb1445d7789d241f0272af3a2942c8149a2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-fibers-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-fibers-l1-1-0.dll
        • Size 22KB
        • SHA256 9d74b91507d144912c54b2cab60e04cacff26a25bdf61bdd8036b340a3f8b7a7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-file-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-file-l1-1-0.dll
        • Size 26KB
        • SHA256 e9de4d7795f49c1c3f4231e6b90290f2f90c2a0b87f7e2b7a04e672e6f758878
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-file-l1-2-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-file-l1-2-0.dll
        • Size 22KB
        • SHA256 f9bd30936b88cad710d9a3734dbe1c6a23510d83740cf7be5ff5d4e81e2f4484
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-handle-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-handle-l1-1-0.dll
        • Size 22KB
        • SHA256 dbfbd81aeddb12c64b08772ba2b1cc3721ce431d8ed6b9b86853c355ce788745
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-heap-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-heap-l1-1-0.dll
        • Size 22KB
        • SHA256 4c2fbbb5b85f6c891a63b09303d9a31afef69ddae3fd110c85b44ec33b72358a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-interlocked-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-interlocked-l1-1-0.dll
        • Size 22KB
        • SHA256 693bdd29d97259c9e8c120f8614f3d7fc2574b8211f30b48226eda9b37f7eada
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-libraryloader-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-libraryloader-l1-1-0.dll
        • Size 22KB
        • SHA256 e3f965741a72fae59038a3e582bfd702e1ac565efe86239386c513dce1e92437
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-localization-l1-2-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-localization-l1-2-0.dll
        • Size 22KB
        • SHA256 2f2f437faa838c11a7354d5ed1106760063b823328c3c3ee57c63f335d9cba16
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-memory-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-memory-l1-1-0.dll
        • Size 22KB
        • SHA256 57cb8d4826671ca7426e8435b1efa22ebfc261fc7c7027d07e29fcd01cfd830a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-namedpipe-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-namedpipe-l1-1-0.dll
        • Size 22KB
        • SHA256 0d579fb1a298b1fc7ba803bb3b50f7911a0acde965e483fed52e0352d6896e2d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-processenvironment-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-processenvironment-l1-1-0.dll
        • Size 22KB
        • SHA256 5642dbfbf7e7420a6b046cbf62e983e6e9ee8c71ad1aaaa93e370c1ea86c2b79
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-processthreads-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-processthreads-l1-1-0.dll
        • Size 22KB
        • SHA256 fd4e320ec5e40519cea9fb171b51d09f93d60aab3d922d7b8f18ec29f863cfa7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-processthreads-l1-1-1.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-processthreads-l1-1-1.dll
        • Size 22KB
        • SHA256 103351eb12cf39b415e73048e6596bdf12e1fd87be1011167835158274ad2704
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-profile-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-profile-l1-1-0.dll
        • Size 22KB
        • SHA256 ec37133eb40a351ad66e59defc28a4f241e25a653d4a6d8f8b727177f0bc43da
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-rtlsupport-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-rtlsupport-l1-1-0.dll
        • Size 22KB
        • SHA256 79a6d99163a06f05b85c4959e88eea348a2f6be772ca3afcd4abeb5cd3847aca
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-string-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-string-l1-1-0.dll
        • Size 22KB
        • SHA256 cc5c37cde49da12b1497c72d361a250e2643c1c20eb928c50931d1ffcb8df732
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-synch-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-synch-l1-1-0.dll
        • Size 22KB
        • SHA256 0a6bf884f5f4c6e5c26c9215b8ab01ae00e11b2c0aa57550ae0b6b21957ba8b7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-synch-l1-2-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-synch-l1-2-0.dll
        • Size 22KB
        • SHA256 59ef5c341e5109958828b158c05081ee608976a059b658e43cc360732d5e3d7a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-sysinfo-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-sysinfo-l1-1-0.dll
        • Size 22KB
        • SHA256 a56faaf421998f51bfff4b01c9e9e825456162c8b705a9b15174d0ee62d957cc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-timezone-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-timezone-l1-1-0.dll
        • Size 22KB
        • SHA256 92c4204c3fc68f1338f79130fa44336ff9678267fc57b443889eba34438f9275
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-core-util-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-core-util-l1-1-0.dll
        • Size 22KB
        • SHA256 4ce3496ced0ac159637f761f84a5952b7d9979405fed097982c08e69552dec42
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-crt-conio-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-crt-conio-l1-1-0.dll
        • Size 22KB
        • SHA256 e64988e538941dda245768bc458a7b0ca00f82ed0f41d5708e0e3dd6f8854510
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-crt-convert-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-crt-convert-l1-1-0.dll
        • Size 26KB
        • SHA256 2aa4f7a2579b5e802647e466b1a276cc356c4c6090fa992c65f148c8165eaa83
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-crt-environment-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-crt-environment-l1-1-0.dll
        • Size 22KB
        • SHA256 a6490233d8c5ba32574ee994021f0aa1b09c371a8e63080a9060d33656354928
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-crt-filesystem-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-crt-filesystem-l1-1-0.dll
        • Size 22KB
        • SHA256 d2a9ec0ff5e8323358575f1099801647207bd1448c7a16eae61d02808a63cc4e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-crt-heap-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-crt-heap-l1-1-0.dll
        • Size 22KB
        • SHA256 850e6f6bc4af2040bd584076d1cbb5559d3422d53ae5dda586781a4224e988be
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-crt-locale-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-crt-locale-l1-1-0.dll
        • Size 22KB
        • SHA256 968c0b4077317de87038e2f6511bf86ea018e2e34d7371ba5c4c8a79f29d4cff
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-crt-math-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-crt-math-l1-1-0.dll
        • Size 30KB
        • SHA256 db38f693e0ed31df7d4ade7d5b6bb0fcba5ca307ca5347764f7507b3829c2ad5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-crt-process-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-crt-process-l1-1-0.dll
        • Size 22KB
        • SHA256 af0fd09d33f78af90a68e00afaf33dc3a7ad4f50ffce8ba9fa470b8f4e7fece2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-crt-runtime-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-crt-runtime-l1-1-0.dll
        • Size 26KB
        • SHA256 3e6e9b707cd549894ad05be56b3bc5ed1b19a7d958039df6a5c4ef651a18ec26
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-crt-stdio-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-crt-stdio-l1-1-0.dll
        • Size 26KB
        • SHA256 db1f33c5f3f6985416380667fb1080a6caa4155c077f74cfdef6a8d44d639ce2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-crt-string-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-crt-string-l1-1-0.dll
        • Size 26KB
        • SHA256 a64f7cefda5943b6409685e3ebdba5df8e949f1da30680a50faab80be3d61236
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-crt-time-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-crt-time-l1-1-0.dll
        • Size 22KB
        • SHA256 f3fb2a1b51ff59f8d92298592601c872f5f67e3304791728b3dddb842aa98397
        • MD5 SHA1 SHA512 SSDEEP TLSH

        api-ms-win-crt-utility-l1-1-0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\api-ms-win-crt-utility-l1-1-0.dll
        • Size 22KB
        • SHA256 9a928e57143ea3eda0f26194b732d5b53a13f35628ad961d127f6cd646a17b5b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        base_library.zip

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\base_library.zip
        • Size 859KB
        • SHA256 324b353dfeb19f429747e57cf9d66f93cee16198d2f2fea9b7a091bd2ff34cd5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libcrypto-1_1.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\libcrypto-1_1.dll
        • Size 1.1MB
        • SHA256 d8ac7f10069f9d5cbb290b5d0402ba8a6525194a9445a99019a1b4d929aa1092
        • MD5 SHA1 SHA512 SSDEEP TLSH

        python310.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\python310.dll
        • Size 1.4MB
        • SHA256 257c7c3524f537f576863d6b44f77a31da352f65c89000ccab87720bcec26474
        • MD5 SHA1 SHA512 SSDEEP TLSH

        select.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\select.pyd
        • Size 22KB
        • SHA256 7e5658064b893b67227ab45e145e68911c379517a0d53459fbe3ee7ba6235273
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ucrtbase.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\ucrtbase.dll
        • Size 1.1MB
        • SHA256 3442a207ac73a600750f4d877437471e13d7018ca85990b3686c1ba13eb23822
        • MD5 SHA1 SHA512 SSDEEP TLSH

        unicodedata.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d5c2\unicodedata.pyd
        • Size 286KB
        • SHA256 12705848d94f3e4724e0e2606c69f128b0460b9636e1feb853094e76fbf925bf
        • MD5 SHA1 SHA512 SSDEEP TLSH

        svchost.exe

        • Path C:\Users\Admin\AppData\Local\Temp\svchost.exe
        • Size 15.1MB
        • SHA256 0c898771a256f22dc7b7b0e0ff7f0ffebb4c44d2dd0fff7d39715800d2b58b53
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2548-126-0x00007FF7AFFA0000-0x00007FF7B4D41000-memory.dmp

        memory/2548-136-0x00007FF7AFFA0000-0x00007FF7B4D41000-memory.dmp

        memory/2548-134-0x00007FF7AFFA0000-0x00007FF7B4D41000-memory.dmp

        memory/2548-113-0x00007FF7AFFA0000-0x00007FF7B4D41000-memory.dmp

        memory/2548-133-0x00007FF7AFFA0000-0x00007FF7B4D41000-memory.dmp

        memory/2548-131-0x00007FF7AFFA0000-0x00007FF7B4D41000-memory.dmp

        memory/2548-119-0x00007FF7AFFA0000-0x00007FF7B4D41000-memory.dmp

        memory/2548-130-0x00007FF7AFFA0000-0x00007FF7B4D41000-memory.dmp

        memory/2548-128-0x00007FF7AFFA0000-0x00007FF7B4D41000-memory.dmp

        memory/2548-127-0x00007FF7AFFA0000-0x00007FF7B4D41000-memory.dmp

        memory/2548-124-0x00007FF7AFFA0000-0x00007FF7B4D41000-memory.dmp

        memory/2584-115-0x0000023013270000-0x00000230136D5000-memory.dmp

        memory/2584-121-0x00007FFE865E0000-0x00007FFE865F8000-memory.dmp

        memory/2584-122-0x00007FFE865B0000-0x00007FFE865DC000-memory.dmp

        memory/2584-123-0x0000023013270000-0x00000230136D5000-memory.dmp

        memory/2584-116-0x0000023013270000-0x00000230136D5000-memory.dmp

        memory/2584-106-0x00007FFE865E0000-0x00007FFE865F8000-memory.dmp

        memory/2584-56-0x0000023013270000-0x00000230136D5000-memory.dmp

        memory/2584-108-0x00007FFE865B0000-0x00007FFE865DC000-memory.dmp