Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    13/11/2026, 10:51

General

  • Target
    Potassium-Portable/auth/authsrv.exe
  • Size 12.8MB
  • Sample261113-mx91msax4m
  • SHA256 610080fd70da2f1cca2983676cee2311c100dfc58fede501c66a345be4d1d587
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 14 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Potassium-Portable\auth\authsrv.exe
    "C:\Users\Admin\AppData\Local\Temp\Potassium-Portable\auth\authsrv.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1936
    • C:\Users\Admin\AppData\Local\Temp\Potassium-Portable\auth\authsrv.exe
      "C:\Users\Admin\AppData\Local\Temp\Potassium-Portable\auth\authsrv.exe"
      2⤵
      • Loads dropped DLL
      PID:4444

Network

        MITRE ATT&CK Matrix

        Replay Monitor

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        Downloads

        VCRUNTIME140.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI000007902\VCRUNTIME140.dll
        • Size 174KB
        • SHA256 d1f4225df2cd877dbf130d5668a021dce3f94118455ff5ec952061c30afc9ce7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _bz2.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI000007902\_bz2.pyd
        • Size 84KB
        • SHA256 a57ad7b6355659277ab3048ecb8878b713305cf7a566cebed90319d333d44941
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _cffi_backend.cp315-win_amd64.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI000007902\_cffi_backend.cp315-win_amd64.pyd
        • Size 177KB
        • SHA256 41f528cda715179bed45be6913f48aa07ae34c2c04f7ebbd74740632096d213d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _decimal.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI000007902\_decimal.pyd
        • Size 319KB
        • SHA256 daa7a522a085263f3ad24f438aeb9ec470b9ea17040b924f6552bd2c44073b45
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _hashlib.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI000007902\_hashlib.pyd
        • Size 71KB
        • SHA256 1aed3affa3bf88fb4ed1c1294fd23a4dae4c0c2378e139ae2d19b5f68ebac022
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _lzma.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI000007902\_lzma.pyd
        • Size 167KB
        • SHA256 a3163ce72075f46e8d4f2e84c7bd6c30b354cfc9af77145ecd8f07cd758b07a8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _socket.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI000007902\_socket.pyd
        • Size 86KB
        • SHA256 95d9fec06c9dc9c61ce3335bd83160851bce90f936615a9ba564ecedd3e76e7c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _ssl.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI000007902\_ssl.pyd
        • Size 194KB
        • SHA256 3941ff2e737757468b5d5c4c4c3a848019ce0e85a9ad32b8deb8d5cf5df93e56
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _zstd.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI000007902\_zstd.pyd
        • Size 494KB
        • SHA256 65f7f0b0f204ea3fd9ea53a3d6f54e2f7f802188ee1a1ba1b1cdf3674684993d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        base_library.zip

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI000007902\base_library.zip
        • Size 1.4MB
        • SHA256 c0f74c6fd32f34075a6fd99297f868bb906ca8f681e152a1a7944ac7f9296ae6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _rust.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI000007902\cryptography\hazmat\bindings\_rust.pyd
        • Size 10.4MB
        • SHA256 4ee475cea79ddf074daf11ce0acc997101b3ebf49471d991c3695639994ff32a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libcrypto-3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI000007902\libcrypto-3.dll
        • Size 5.7MB
        • SHA256 75495fe0e079ab00d49be740d3c710a0b94e3f74f9648cb7cc9f768fc7f52319
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libssl-3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI000007902\libssl-3.dll
        • Size 1.2MB
        • SHA256 8957182a9c385bfd9f3f790921de2ddc614cf91f99edbed4e9e5446a46504e32
        • MD5 SHA1 SHA512 SSDEEP TLSH

        observer_rsa.pem

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI000007902\observer_rsa.pem
        • Size 1KB
        • SHA256 20e3a7899ec587ef33a4607da1d53946f47f8dbc61743a8a8c7284cf2ebe245a
        • MD5 SHA1 SHA512 TLSH

        python315.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI000007902\python315.dll
        • Size 7.5MB
        • SHA256 62507168f11f1a9bb6c6982322e0320477cf703a7382bdbe608a124a457126b1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        python3t.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI000007902\python3t.dll
        • Size 74KB
        • SHA256 d996e71c3aea06e48c060c86ce2a8593862e44365220b89619ebe7cb865c49ea
        • MD5 SHA1 SHA512 SSDEEP TLSH

        select.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI000007902\select.pyd
        • Size 32KB
        • SHA256 641c4d2365d15ba1da857fd783b64ef67624077cc50ff3bd8566fe484b109342
        • MD5 SHA1 SHA512 SSDEEP TLSH

        server.chain.pem

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI000007902\server.chain.pem
        • Size 2KB
        • SHA256 480efd929940ba229bbb82a55b038d11af7e5bf5deabd91c5eda4aa524b70010
        • MD5 SHA1 SHA512 TLSH

        server.key

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI000007902\server.key
        • Size 1KB
        • SHA256 e97f92d780223a6687e08a24db7bc5f1e6d071e281bd573788e9e8d9febfaff3
        • MD5 SHA1 SHA512 TLSH

        unicodedata.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI000007902\unicodedata.pyd
        • Size 735KB
        • SHA256 67d569e47ab2cd164ee6e42e5811b787d18230eb02b47adf3e45cc67205eef79
        • MD5 SHA1 SHA512 SSDEEP TLSH