Analysis

  • max time kernel
    96s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/06/2024, 06:57

General

  • Target
    sysEXEC.zip
  • Size 18.8MB
  • Sample240618-hrd9kasalg
  • SHA256 1b0f8b7a56eedd6416a91dff43c83a15ae2e4ddb966412e5abdc1acefeb8f6c2
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Drops startup file 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 45 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Detects Pyinstaller 1 IoCs
  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\sysEXEC.zip
    1⤵
      PID:452
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:116
      • C:\Program Files\7-Zip\7zG.exe
        "C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\Desktop\" -an -ai#7zMap19948:72:7zEvent1303
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:4260
      • C:\Users\Admin\Desktop\sysEXEC\sysEXEC.exe
        "C:\Users\Admin\Desktop\sysEXEC\sysEXEC.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:4708
        • C:\Users\Admin\Desktop\sysEXEC\sysEXEC.exe
          "C:\Users\Admin\Desktop\sysEXEC\sysEXEC.exe"
          2⤵
          • Drops startup file
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:2884
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c "ver"
            3⤵
              PID:3296
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /c "tasklist"
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:232
              • C:\Windows\system32\tasklist.exe
                tasklist
                4⤵
                • Enumerates processes with tasklist
                • Suspicious use of AdjustPrivilegeToken
                PID:4984

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              _raw_ecb.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\Crypto\Cipher\_raw_ecb.pyd
              • Size 10KB
              • SHA256 3e0d07bbf93e0748b42b1c2550f48f0d81597486038c22548224584ae178a543
              • MD5 SHA1 SHA512 SSDEEP

              VCRUNTIME140.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\VCRUNTIME140.dll
              • Size 106KB
              • SHA256 76fdb83fde238226b5bebaf3392ee562e2cb7ca8d3ef75983bf5f9d6c7119644
              • MD5 SHA1 SHA512 SSDEEP

              VCRUNTIME140_1.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\VCRUNTIME140_1.dll
              • Size 48KB
              • SHA256 e0b66601cc28ecb171c3d4b7ac690c667f47da6b6183bff80604c84c00d265ab
              • MD5 SHA1 SHA512 SSDEEP

              _asyncio.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\_asyncio.pyd
              • Size 62KB
              • SHA256 45c229c3988f30580c79b38fc0c19c81e6f7d5778e64cef6ce04dd188a9ccab5
              • MD5 SHA1 SHA512 SSDEEP

              _bz2.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\_bz2.pyd
              • Size 81KB
              • SHA256 775fbc6e9a4c7e9710205157350f3d6141b5a9e8f44cb07b3eac38f2789c8723
              • MD5 SHA1 SHA512 SSDEEP

              _cffi_backend.cp310-win_amd64.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\_cffi_backend.cp310-win_amd64.pyd
              • Size 177KB
              • SHA256 52e5a0c3ca9b0d4fc67243bd8492f5c305ff1653e8d956a2a3d9d36af0a3e4fd
              • MD5 SHA1 SHA512 SSDEEP

              _ctypes.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\_ctypes.pyd
              • Size 119KB
              • SHA256 e60a2b100c4fa50b0b144cf825fe3cde21a8b7b60b92bfc326cb39573ce96b2b
              • MD5 SHA1 SHA512 SSDEEP

              _decimal.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\_decimal.pyd
              • Size 242KB
              • SHA256 4ae6f6fb3992bb878416211221b3d62515e994d78f72eab51e0126ca26d0ee96
              • MD5 SHA1 SHA512 SSDEEP

              _hashlib.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\_hashlib.pyd
              • Size 60KB
              • SHA256 cd33f823e608d3bda759ad441f583a20fc0198119b5a62a8964f172559acb7d3
              • MD5 SHA1 SHA512 SSDEEP

              _lzma.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\_lzma.pyd
              • Size 153KB
              • SHA256 0a70e8546fa6038029f2a3764e721ceebea415818e5f0df6b90d6a40788c3b31
              • MD5 SHA1 SHA512 SSDEEP

              _multiprocessing.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\_multiprocessing.pyd
              • Size 32KB
              • SHA256 af84076b03a0eadec2b75d01f06bb3765b35d6f0639fb7c14378736d64e1acaa
              • MD5 SHA1 SHA512 SSDEEP

              _overlapped.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\_overlapped.pyd
              • Size 47KB
              • SHA256 f16e595b0a87c32d9abd2035f8ea97b39339548e7c518df16a6cc27ba7733973
              • MD5 SHA1 SHA512 SSDEEP

              _queue.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\_queue.pyd
              • Size 29KB
              • SHA256 007bcf19d9b036a7e73f5ef31f39bfb1910f72c9c10e4a1b0658352cfe7a8b75
              • MD5 SHA1 SHA512 SSDEEP

              _socket.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\_socket.pyd
              • Size 75KB
              • SHA256 8af6d70d44bb9398733f88bcfb6d2085dd1a193cd00e52120b96a651f6e35ebe
              • MD5 SHA1 SHA512 SSDEEP

              _sqlite3.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\_sqlite3.pyd
              • Size 95KB
              • SHA256 28090432a18b59eb8cbe8fdcf11a277420b404007f31ca571321488a43b96319
              • MD5 SHA1 SHA512 SSDEEP

              _ssl.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\_ssl.pyd
              • Size 155KB
              • SHA256 e33b7a4aa5cdd5462ee66830636fdd38048575a43d06eb7e2f688358525ddeab
              • MD5 SHA1 SHA512 SSDEEP

              _uuid.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\_uuid.pyd
              • Size 23KB
              • SHA256 8b3d4767057c18c1c496e138d4843f25e5c98ddfc6a8d1b0ed46fd938ede5bb6
              • MD5 SHA1 SHA512 SSDEEP

              base_library.zip

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\base_library.zip
              • Size 859KB
              • SHA256 03f6a37fc2e166e99ce0ad8916dfb8a70945e089f9fc09b88e60a1649441ab6e
              • MD5 SHA1 SHA512 SSDEEP

              cacert.pem

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\certifi\cacert.pem
              • Size 287KB
              • SHA256 1605d0d39c5e25d67e7838da6a17dcf2e8c6cfa79030e8fb0318e35f5495493c
              • MD5 SHA1 SHA512 SSDEEP

              md.cp310-win_amd64.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\charset_normalizer\md.cp310-win_amd64.pyd
              • Size 10KB
              • SHA256 9b3d70922dcfaeb02812afa9030a40433b9d2b58bcf088781f9ab68a74d20664
              • MD5 SHA1 SHA512 SSDEEP

              md__mypyc.cp310-win_amd64.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\charset_normalizer\md__mypyc.cp310-win_amd64.pyd
              • Size 117KB
              • SHA256 ad9bcc0de6815516dfde91bb2e477f8fb5f099d7f5511d0f54b50fa77b721051
              • MD5 SHA1 SHA512 SSDEEP

              libcrypto-1_1.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\libcrypto-1_1.dll
              • Size 3.3MB
              • SHA256 976ce72efd0a8aeeb6e21ad441aa9138434314ea07f777432205947cdb149541
              • MD5 SHA1 SHA512 SSDEEP

              libffi-7.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\libffi-7.dll
              • Size 32KB
              • SHA256 f60dd9f2fcbd495674dfc1555effb710eb081fc7d4cae5fa58c438ab50405081
              • MD5 SHA1 SHA512 SSDEEP

              libssl-1_1.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\libssl-1_1.dll
              • Size 686KB
              • SHA256 2aebb73530d21a2273692a5a3d57235b770daf1c35f60c74e01754a5dac05071
              • MD5 SHA1 SHA512 SSDEEP

              pyexpat.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\pyexpat.pyd
              • Size 193KB
              • SHA256 56984d43be27422d31d8ece87d0abda2c0662ea2ff22af755e49e3462a5f8b65
              • MD5 SHA1 SHA512 SSDEEP

              python310.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\python310.dll
              • Size 4.3MB
              • SHA256 156cf2b64dd0f4d9bdb346b654a11300d6e9e15a65ef69089923dafc1c71e33d
              • MD5 SHA1 SHA512 SSDEEP

              pythoncom310.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\pywin32_system32\pythoncom310.dll
              • Size 653KB
              • SHA256 c3b33ba6c4f646151aed4172562309d9f44a83858ddfd84b2d894a8b7da72b1e
              • MD5 SHA1 SHA512 SSDEEP

              pywintypes310.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\pywin32_system32\pywintypes310.dll
              • Size 131KB
              • SHA256 c8ec6429d243aef1f78969863be23d59273fa6303760a173ab36ab71d5676005
              • MD5 SHA1 SHA512 SSDEEP

              select.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\select.pyd
              • Size 28KB
              • SHA256 8f27cd8c5071cb740a2191b3c599e99595b121f461988166f07d9f841e7116b7
              • MD5 SHA1 SHA512 SSDEEP

              sqlite3.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\sqlite3.dll
              • Size 1.4MB
              • SHA256 f1e8b6c4d61ac6a320fa2566da9391fbfd65a5ac34ac2e2013bc37c8b7b41592
              • MD5 SHA1 SHA512 SSDEEP

              unicodedata.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\unicodedata.pyd
              • Size 1.1MB
              • SHA256 4b6e3ba734c15ec789b5d7469a5097bd082bdfd8e55e636ded0d097cf6511e05
              • MD5 SHA1 SHA512 SSDEEP

              win32api.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI47082\win32\win32api.pyd
              • Size 130KB
              • SHA256 ac483d60a565cc9cbf91a6f37ea516b2162a45d255888d50fbbb7e5ff12086ee
              • MD5 SHA1 SHA512 SSDEEP

              sysEXEC.exe

              • Path C:\Users\Admin\Desktop\sysEXEC\sysEXEC.exe
              • Size 14.5MB
              • SHA256 1302f2c7054ea7194ce07428af0c2fa00c46e2d27fb96e7734f09cdab139b1a5
              • MD5 SHA1 SHA512 SSDEEP