Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    132s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    14/07/2026, 14:17

General

  • Target
    MecchaTrainer-loader.exe
  • Size 40.8MB
  • Sample260714-rlzgzset6j
  • SHA256 75c78801237605e77ddb81830f0cf4a2fdcdadfe4eabf163e105d88e4dbaf46e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
upx

Malware Config

Signatures

  • Loads dropped DLL 17 IoCs
  • UPX packed file 54 IoCs

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

  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MecchaTrainer-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\MecchaTrainer-loader.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3540
    • C:\Users\Admin\AppData\Local\Temp\MecchaTrainer-loader.exe
      "C:\Users\Admin\AppData\Local\Temp\MecchaTrainer-loader.exe"
      2⤵
      • Loads dropped DLL
      PID:3240

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        VCRUNTIME140.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\VCRUNTIME140.dll
        • Size 117KB
        • SHA256 052ad6a20d375957e82aa6a3c441ea548d89be0981516ca7eb306e063d5027f4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        VCRUNTIME140_1.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\VCRUNTIME140_1.dll
        • Size 48KB
        • SHA256 6a99bc0128e0c7d6cbbf615fcc26909565e17d4ca3451b97f8987f9c6acbc6c8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _asyncio.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\_asyncio.pyd
        • Size 41KB
        • SHA256 179fa03d3f631bbcf4ef851c754de4c66b49d6743d3ffdd6d41ee159a9c34b1f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _bz2.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\_bz2.pyd
        • Size 51KB
        • SHA256 83ead5dbead0170fac4ea8b52159d98a918baf9a94dd8fd6854ae2df027172f3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _cffi_backend.cp314-win_amd64.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\_cffi_backend.cp314-win_amd64.pyd
        • Size 71KB
        • SHA256 6709f5e0d8b00865ef443b1657bbe22b57389e3832ae1ad1da741a56cedb8eee
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _ctypes.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\_ctypes.pyd
        • Size 67KB
        • SHA256 97804515e4d860361efdf939b1ca7248d75ff4d1b7241b6a3e2b01e2346bf4eb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _decimal.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\_decimal.pyd
        • Size 121KB
        • SHA256 4bf879db115bac0f99dcd37f627cc8d856d7f8a0bff66eb47c18b5544ea85e6a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _elementtree.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\_elementtree.pyd
        • Size 63KB
        • SHA256 82fa4b54a3fcd3ecab078bf2f7d75c8ce652354a58f15cc2d048751de27d16ec
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _hashlib.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\_hashlib.pyd
        • Size 38KB
        • SHA256 a5ebb1addcf900a043b1eaceb3bc193fb2ef9302338b8dd1dcec71a0b2c9ae82
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _lzma.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\_lzma.pyd
        • Size 88KB
        • SHA256 9ecace3be6f42e3a25fef5aabd4e68ca4a96a3407fcb29018b93e8e2feff7d64
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _multiprocessing.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\_multiprocessing.pyd
        • Size 29KB
        • SHA256 a2f94a4a0ed4f6882d5193d354db0670f1c333a005da27d53c7de2e366727630
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _overlapped.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\_overlapped.pyd
        • Size 36KB
        • SHA256 7fad760884b091245976e0b27876fdbc8254e00091833f357179f7721ae39f9e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _queue.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\_queue.pyd
        • Size 28KB
        • SHA256 1205349679936c2ff74aab625a4045eaa84c86caa0321b913166a6e9314d5fea
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _socket.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\_socket.pyd
        • Size 46KB
        • SHA256 ecf87c3b14f0da08db94e705b697be13339b85fe49417fc7b14268d7b8d38f80
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _sqlite3.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\_sqlite3.pyd
        • Size 61KB
        • SHA256 3af53eeceb2edf6f01140948f5c0fbd33abcf6c0792e8d7da293c6156b946a0d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _ssl.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\_ssl.pyd
        • Size 68KB
        • SHA256 fc576ac0c47ee7614603eda8af0a1ccf00ba026188ae75913369111f8d72aac9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _uuid.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\_uuid.pyd
        • Size 27KB
        • SHA256 635d6c46bbf6b86dd30a802bd1c6e214dabccb44d1452c52f0b557ae5bcc6f68
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _wmi.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\_wmi.pyd
        • Size 30KB
        • SHA256 45943ba68e0e09b3019238ac817544bfd22b8e673ee30d1d3fb6808d8ae202dd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _zstd.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\_zstd.pyd
        • Size 176KB
        • SHA256 837a8a6b8bb89f9a5d4b61605f422bbcbb83ac89cf81e0e082f6e04a8acb0f5c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ada92cb5d92a588d1b93__mypyc.cp314-win_amd64.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\ada92cb5d92a588d1b93__mypyc.cp314-win_amd64.pyd
        • Size 66KB
        • SHA256 5a286d64cd1dc2777d81283028bd6fddec4cc47b2b1894f9fcfeb108d9852346
        • MD5 SHA1 SHA512 SSDEEP TLSH

        base_library.zip

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\base_library.zip
        • Size 1.3MB
        • SHA256 e20826becb600c5e8fe954a1c1907e5abc9913328eaa3238d9cb099a22ce55af
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libcrypto-3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\libcrypto-3.dll
        • Size 1.6MB
        • SHA256 e361497780f940a352568012cf56b1ea732e58f80883e21b7c67e5c93b2b30ed
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libffi-8.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\libffi-8.dll
        • Size 29KB
        • SHA256 a7ac89b42d203ad40bad636ad610cf9f6da02128e5a20b8b4420530a35a4fb29
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libssl-3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\libssl-3.dll
        • Size 224KB
        • SHA256 d1307d254bf833fc3c3ba3109cc6bcc8fdbc1bec2b46d8b7b845a8114b8edcb3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        pyexpat.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\pyexpat.pyd
        • Size 95KB
        • SHA256 6784dc222f519e432561aab061a44cb23e8ee57924e1d7d00471d398ae077efc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        python3.DLL

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\python3.DLL
        • Size 72KB
        • SHA256 f3d0cd260a46a9617a8b1d4d5e8703278478c22a910165bffb4e4ddf6562d93f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        python314.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\python314.dll
        • Size 1.9MB
        • SHA256 005d4bdea7443a09dc740c0d73dd59291f0241200ec5c1a436b623aee523db22
        • MD5 SHA1 SHA512 SSDEEP TLSH

        select.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\select.pyd
        • Size 28KB
        • SHA256 41b6a8d4d7c833acf9ee6cd12997c62ba89f3596fa5daf956ac3620b69936bd1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Lorem ipsum.txt

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\setuptools\_vendor\jaraco\text\Lorem ipsum.txt
        • Size 1KB
        • SHA256 37fedcffbf73c4eb9f058f47677cb33203a436ff9390e4d38a8e01c9dad28e0b
        • MD5 SHA1 SHA512 TLSH

        sqlite3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\sqlite3.dll
        • Size 663KB
        • SHA256 333d917a41c702c002fcef7357b41c83307c30aeca1d13b6920fbf06fc3115b2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        unicodedata.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI35402\unicodedata.pyd
        • Size 277KB
        • SHA256 3d2e38e8a158d6e594584a74254144f245e65072535f00ddeeb37a40f78c343b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3240-155-0x00007FFBCD3A0000-0x00007FFBCD3CC000-memory.dmp

        memory/3240-148-0x00007FFBD12F0000-0x00007FFBD12FF000-memory.dmp

        memory/3240-147-0x00007FFBCD500000-0x00007FFBCD529000-memory.dmp

        memory/3240-151-0x00007FFBCD3D0000-0x00007FFBCD3EA000-memory.dmp

        memory/3240-178-0x00007FFBCD320000-0x00007FFBCD3A0000-memory.dmp

        memory/3240-182-0x00007FFBCD710000-0x00007FFBCD71D000-memory.dmp

        memory/3240-180-0x00007FFBCC0F0000-0x00007FFBCC10A000-memory.dmp

        memory/3240-187-0x00007FFBC94F0000-0x00007FFBC9504000-memory.dmp

        memory/3240-185-0x00007FFBCC0E0000-0x00007FFBCC0EF000-memory.dmp

        memory/3240-189-0x00007FFBBAA40000-0x00007FFBBB14D000-memory.dmp

        memory/3240-190-0x00007FFBC7050000-0x00007FFBC7584000-memory.dmp

        memory/3240-195-0x00007FFBC6F80000-0x00007FFBC704E000-memory.dmp

        memory/3240-194-0x00007FFBC7E90000-0x00007FFBC7EC4000-memory.dmp

        memory/3240-193-0x00007FFBCD500000-0x00007FFBCD529000-memory.dmp

        memory/3240-196-0x00007FFBCD3D0000-0x00007FFBCD3EA000-memory.dmp

        memory/3240-138-0x00007FFBBAA40000-0x00007FFBBB14D000-memory.dmp

        memory/3240-198-0x00007FFBBAA40000-0x00007FFBBB14D000-memory.dmp

        memory/3240-210-0x00007FFBC6F80000-0x00007FFBC704E000-memory.dmp

        memory/3240-214-0x00007FFBCD3A0000-0x00007FFBCD3CC000-memory.dmp

        memory/3240-213-0x00007FFBCD3D0000-0x00007FFBCD3EA000-memory.dmp

        memory/3240-212-0x00007FFBD12F0000-0x00007FFBD12FF000-memory.dmp

        memory/3240-211-0x00007FFBCD500000-0x00007FFBCD529000-memory.dmp

        memory/3240-209-0x00007FFBC7E90000-0x00007FFBC7EC4000-memory.dmp

        memory/3240-208-0x00007FFBC7050000-0x00007FFBC7584000-memory.dmp

        memory/3240-207-0x00007FFBC94F0000-0x00007FFBC9504000-memory.dmp

        memory/3240-206-0x00007FFBCC0E0000-0x00007FFBCC0EF000-memory.dmp

        memory/3240-205-0x00007FFBCD710000-0x00007FFBCD71D000-memory.dmp

        memory/3240-204-0x00007FFBCC0F0000-0x00007FFBCC10A000-memory.dmp

        memory/3240-203-0x00007FFBCD320000-0x00007FFBCD3A0000-memory.dmp