Overview

overview

7

Static

static

3

UserNameCh...yq.rar

windows11-21h2-x64

7

UserNameCh...nt.exe

windows11-21h2-x64

7

Private_client.pyc

windows11-21h2-x64

3

UserNameCh...xe.bat

windows11-21h2-x64

7

Analysis

  • max time kernel
    898s
  • max time network
    446s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    22/06/2026, 18:45

Sharing

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General

  • Target
    UserNameCheckerBy7dyq/Private_client.exe
  • Size 11.4MB
  • Sample260622-xeef5afy2v
  • SHA256 4e06cfe38802c4f9e3746e2d2b014eb2248e6357900958684ca5c6631567a0a1
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 20 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\UserNameCheckerBy7dyq\Private_client.exe
    "C:\Users\Admin\AppData\Local\Temp\UserNameCheckerBy7dyq\Private_client.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5048
    • C:\Users\Admin\AppData\Local\Temp\UserNameCheckerBy7dyq\Private_client.exe
      "C:\Users\Admin\AppData\Local\Temp\UserNameCheckerBy7dyq\Private_client.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:3284
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c chcp 65001 > nul
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2496
        • C:\Windows\system32\chcp.com
          chcp 65001
          4⤵
            PID:5976
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c cls
          3⤵
            PID:5600
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c cls
            3⤵
              PID:5400

        Network

              MITRE ATT&CK Matrix

              Replay Monitor

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              Downloads

              81d243bd2c585b0f4821__mypyc.cp314-win_amd64.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\81d243bd2c585b0f4821__mypyc.cp314-win_amd64.pyd
              • Size 211KB
              • SHA256 ab64835b63093c31975df2692756c8008e7ec190e4aa86f15a713bcc62e1d432
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              VCRUNTIME140.dll
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\VCRUNTIME140.dll
              • Size 117KB
              • SHA256 052ad6a20d375957e82aa6a3c441ea548d89be0981516ca7eb306e063d5027f4
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              VCRUNTIME140_1.dll
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\VCRUNTIME140_1.dll
              • Size 48KB
              • SHA256 6a99bc0128e0c7d6cbbf615fcc26909565e17d4ca3451b97f8987f9c6acbc6c8
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _asyncio.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\_asyncio.pyd
              • Size 76KB
              • SHA256 cc27a21453b309197030b5fa8051a8a9c89aec79f9b81ee4ea2a2551ac0f912f
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _bz2.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\_bz2.pyd
              • Size 86KB
              • SHA256 ef5277eb670219274e7d1e92190ddf7f4bb94d4922ca1c1a12efadfd2c4c66f6
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _ctypes.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\_ctypes.pyd
              • Size 139KB
              • SHA256 fd4847b99cd504a66bdc4739f15181b562774e6736bb88775880b073276dede1
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _decimal.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\_decimal.pyd
              • Size 283KB
              • SHA256 1ee2247153ec6c6e5b3b49402f294b2b7325385ad489a5522e6fa9b406575e8b
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _hashlib.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\_hashlib.pyd
              • Size 67KB
              • SHA256 9bc6ffcd2ab4ac87c4035f18b432e888d0d4a36795c97bf3f28ddf32cc34e40f
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _lzma.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\_lzma.pyd
              • Size 157KB
              • SHA256 39e5bc3624a26c9f6ad2e2df412543b0bd697a1d75338b44fe99763358d6d8cb
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _multiprocessing.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\_multiprocessing.pyd
              • Size 37KB
              • SHA256 a8c15ee29f60536e00fd7c26c0315e062c4f018e2e46e7f6eb65c1fed0d886a4
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _overlapped.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\_overlapped.pyd
              • Size 56KB
              • SHA256 0e8b684fdcc8c6de88bd4b92b6ed44a6fd917949c98b0691285e0cf6c760dc36
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _queue.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\_queue.pyd
              • Size 35KB
              • SHA256 acf60e246f6a83a914fb6c411f04bd3eb8bba83070612ca44af99d74f06c5524
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _socket.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\_socket.pyd
              • Size 85KB
              • SHA256 65caaa6f35c329d901ba3f3d9f7fc4d7443dcde89907dccbd6748786cc517476
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _ssl.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\_ssl.pyd
              • Size 180KB
              • SHA256 12e31f50739e33b115c7e10febf1ccedeb5d9353cd539c608cc5dd164bee17a7
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _uuid.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\_uuid.pyd
              • Size 27KB
              • SHA256 635d6c46bbf6b86dd30a802bd1c6e214dabccb44d1452c52f0b557ae5bcc6f68
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _wmi.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\_wmi.pyd
              • Size 39KB
              • SHA256 6fb2c6316628664319b2abcf961f0cbbac809966a65b653c86e7864ad8701496
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _zstd.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\_zstd.pyd
              • Size 491KB
              • SHA256 54e6acfbc1cb27c9afea0e133cadac68b89869ff1a14eb0c678d40eb9c655347
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              base_library.zip
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\base_library.zip
              • Size 1.3MB
              • SHA256 4ced189daa3ebe6e8d8bb32ac168ffa074431761ba7fd29be122c0f14dcfc7f8
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              cd.cp314-win_amd64.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\charset_normalizer\cd.cp314-win_amd64.pyd
              • Size 10KB
              • SHA256 da3ce780d6d58ae8c6920b99f806f64d58a1b33f4a01382861b01b50549199f8
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              libcrypto-3.dll
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\libcrypto-3.dll
              • Size 5.0MB
              • SHA256 8b27ebae75cc99f20075322446af36c9ffcb4e3b400a77d712ef43f007f47f7d
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              libffi-8.dll
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\libffi-8.dll
              • Size 38KB
              • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              libssl-3.dll
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\libssl-3.dll
              • Size 776KB
              • SHA256 56dd50fb903b860ace831d0cd6c6250cd57e8655867c3a0fa16eac2d4cc0ba0b
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              pyexpat.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\pyexpat.pyd
              • Size 214KB
              • SHA256 9349be352300fef4b16da0574c670b174d75094574ab51f3d385767d1e3dfc0d
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              python314.dll
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\python314.dll
              • Size 6.5MB
              • SHA256 18310593c50ad109fc5c95db1fd5c92ecec9e1bfc66c976df9fc11dd62616d5a
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              select.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\select.pyd
              • Size 32KB
              • SHA256 8c3ee20776d8eb7c441f2006ed46b9ba932060c6b66df4c1e156dcf7738d56ce
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              Lorem ipsum.txt
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\setuptools\_vendor\jaraco\text\Lorem ipsum.txt
              • Size 1KB
              • SHA256 37fedcffbf73c4eb9f058f47677cb33203a436ff9390e4d38a8e01c9dad28e0b
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              unicodedata.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI50482\unicodedata.pyd
              • Size 740KB
              • SHA256 a7a2bfeed5d0480d8c458b3a61ee32c478ae10c694e8be61c3ba0e8cc2a6e1c6
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download