Resubmissions

15/05/2026, 23:44

260515-3raxcsb16q9

15/05/2026, 23:44

260515-3q5qcab16p9

Analysis

  • max time kernel
    44s
  • max time network
    49s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    15/05/2026, 23:44

Errors

Reason
Machine shutdown

General

  • Target
    Papilio Charontis.exe
  • Size 21.1MB
  • Sample260515-3raxcsb16q
  • SHA256 05db268c55ea8dae0c8b2d114a78978fb2821c00e4cc00e5e2d7842bcf0c9556
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Grants admin privileges 1 TTPs

    Uses net.exe to modify the user's privileges.

  • Disables RegEdit via registry modification 4 IoCs
  • Event Triggered Execution: Image File Execution Options Injection 1 TTPs 8 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 33 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Detects Pyinstaller 2 IoCs
  • Permission Groups Discovery: Local Groups 1 TTPs

    Attempt to find local system groups and permission settings.

  • Modifies Control Panel 2 IoCs
  • Modifies data under HKEY_USERS 15 IoCs
  • Modifies registry class 10 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs
  • System policy modification 1 TTPs 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Papilio Charontis.exe
    "C:\Users\Admin\AppData\Local\Temp\Papilio Charontis.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4404
    • C:\Users\Admin\AppData\Local\Temp\Papilio Charontis.exe
      "C:\Users\Admin\AppData\Local\Temp\Papilio Charontis.exe"
      2⤵
      • Disables RegEdit via registry modification
      • Event Triggered Execution: Image File Execution Options Injection
      • Loads dropped DLL
      • Adds Run key to start application
      • Sets desktop wallpaper using registry
      • Modifies Control Panel
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:4716
      • C:\Windows\SYSTEM32\gpupdate.exe
        gpupdate /force
        3⤵
          PID:1944
        • C:\Windows\SYSTEM32\net.exe
          net localgroup Administrators
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2428
          • C:\Windows\system32\net1.exe
            C:\Windows\system32\net1 localgroup Administrators
            4⤵
              PID:3980
          • C:\Windows\SYSTEM32\net.exe
            net user "Hu Tao" Smuckers23 /add
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:2236
            • C:\Windows\system32\net1.exe
              C:\Windows\system32\net1 user "Hu Tao" Smuckers23 /add
              4⤵
                PID:3332
            • C:\Windows\SYSTEM32\net.exe
              net localgroup Administrators "Hu Tao" /add
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:4908
              • C:\Windows\system32\net1.exe
                C:\Windows\system32\net1 localgroup Administrators "Hu Tao" /add
                4⤵
                  PID:3764
              • C:\Windows\SYSTEM32\net.exe
                net localgroup Administrators Admin /delete
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:2400
                • C:\Windows\system32\net1.exe
                  C:\Windows\system32\net1 localgroup Administrators Admin /delete
                  4⤵
                    PID:4820
                • C:\Windows\SYSTEM32\net.exe
                  net localgroup Administrators Administrator /delete
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1532
                  • C:\Windows\system32\net1.exe
                    C:\Windows\system32\net1 localgroup Administrators Administrator /delete
                    4⤵
                      PID:4152
                  • C:\Windows\SYSTEM32\shutdown.exe
                    shutdown /r /t 10 /c "System update requires restart."
                    3⤵
                    • Suspicious use of AdjustPrivilegeToken
                    PID:3564
                  • C:\ProgramData\ComputerSetup\SpeechRuntime.exe
                    C:\ProgramData\ComputerSetup\SpeechRuntime.exe
                    3⤵
                    • Executes dropped EXE
                    • Suspicious use of WriteProcessMemory
                    PID:1084
                    • C:\ProgramData\ComputerSetup\SpeechRuntime.exe
                      C:\ProgramData\ComputerSetup\SpeechRuntime.exe
                      4⤵
                      • Executes dropped EXE
                      • Loads dropped DLL
                      PID:2244
              • C:\ProgramData\ComputerSetup\SpeechRuntime.exe
                C:\ProgramData\ComputerSetup\SpeechRuntime.exe
                1⤵
                • Executes dropped EXE
                • Suspicious use of WriteProcessMemory
                PID:1920
                • C:\ProgramData\ComputerSetup\SpeechRuntime.exe
                  C:\ProgramData\ComputerSetup\SpeechRuntime.exe
                  2⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  • Modifies registry class
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of WriteProcessMemory
                  PID:1416
                  • C:\Windows\System32\fodhelper.exe
                    C:\Windows\System32\fodhelper.exe
                    3⤵
                    • Suspicious use of WriteProcessMemory
                    PID:2676
                    • C:\ProgramData\ComputerSetup\HuTao.exe
                      "C:\ProgramData\ComputerSetup\HuTao.exe" --silent
                      4⤵
                      • Executes dropped EXE
                      • Suspicious use of WriteProcessMemory
                      PID:232
                      • C:\ProgramData\ComputerSetup\HuTao.exe
                        "C:\ProgramData\ComputerSetup\HuTao.exe" --silent
                        5⤵
                        • Disables RegEdit via registry modification
                        • Event Triggered Execution: Image File Execution Options Injection
                        • Executes dropped EXE
                        • Loads dropped DLL
                        • Suspicious behavior: EnumeratesProcesses
                        • System policy modification
                        PID:2444
              • C:\Windows\System32\PickerHost.exe
                C:\Windows\System32\PickerHost.exe -Embedding
                1⤵
                • Suspicious use of SetWindowsHookEx
                PID:1544
              • C:\Windows\system32\LogonUI.exe
                "LogonUI.exe" /flags:0x4 /state0:0xa3a32055 /state1:0x41c64e6d
                1⤵
                • Modifies data under HKEY_USERS
                • Suspicious use of SetWindowsHookEx
                PID:4940

              Network

                    MITRE ATT&CK Enterprise v16

                    Replay Monitor

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                    Downloads

                    HuTao.exe

                    • Path C:\ProgramData\ComputerSetup\HuTao.exe
                    • Size 21.1MB
                    • SHA256 05db268c55ea8dae0c8b2d114a78978fb2821c00e4cc00e5e2d7842bcf0c9556
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    base_library.zip

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI19202\base_library.zip
                    • Size 1.3MB
                    • SHA256 b6028637bb1c2980b1a15b1465e2e191d35a2aab93839b786074f81439f63957
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    SpeechRuntime.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\SpeechRuntime.exe
                    • Size 8.1MB
                    • SHA256 2ffb27c268d3a14484dacf7a6c796a1faa64436fca82672562ef972e2121e74e
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    VCRUNTIME140.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\VCRUNTIME140.dll
                    • Size 117KB
                    • SHA256 052ad6a20d375957e82aa6a3c441ea548d89be0981516ca7eb306e063d5027f4
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    _bz2.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\_bz2.pyd
                    • Size 85KB
                    • SHA256 a4be36fffeefa8b24c1234d548da8f05558aba53c2ea7d1d2614776eaad8fbf4
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    _ctypes.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\_ctypes.pyd
                    • Size 139KB
                    • SHA256 f8a9f7831e81b2bfba12456e589f8198114f24986bd527ac231a844565afcddb
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    _decimal.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\_decimal.pyd
                    • Size 283KB
                    • SHA256 04738ee6b96bcc6351446b011b523d831aa88ec3f11d4b64c33414c965b56b80
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    _hashlib.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\_hashlib.pyd
                    • Size 67KB
                    • SHA256 d4524b261f09806a828c62fc97e8517328b23d65ab87d20706a4bafd86bbf345
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    _lzma.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\_lzma.pyd
                    • Size 157KB
                    • SHA256 f7ad11fbbb7aeaf7b6566a532a3243e3ae5f92bac480dbe5c2ef300fe2c1dabe
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    _socket.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\_socket.pyd
                    • Size 85KB
                    • SHA256 ff3e97cd11bdc68798e5b3dcd5295d1efba179b7344142d50d066bbf1c2d79cd
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    _ssl.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\_ssl.pyd
                    • Size 180KB
                    • SHA256 43e60bbdff2fe41701f39fa25ea6a8251a2b7623ff18f980a209a451eb5e648f
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    _svchost_rt.dat

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\_svchost_rt.dat
                    • Size 6KB
                    • SHA256 2943e28ee766f2750904f4e4aef842abe0fe4fd8c188d994c826fbb94e12914e
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    _zstd.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\_zstd.pyd
                    • Size 491KB
                    • SHA256 536a3b521a3c42d2827ece0ccfbe40b83a2fd96a0f5496cd60b943b10e1266d4
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    banner.jpg

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\banner.jpg
                    • Size 1.1MB
                    • SHA256 4ce2107ff1c59794bdbe07a730d9d06e5d052bf3877b3ad14432ff782947f57c
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    base_library.zip

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\base_library.zip
                    • Size 1.3MB
                    • SHA256 8dfaa43078d949bd172b29ed8430f94a27f6da8398665b468e81c1add8040769
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    icon.webp

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\icon.webp
                    • Size 66KB
                    • SHA256 e535dd873ed74d724e59ded7ba87d15c39082f8e354c374824debc532d645a25
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    libcrypto-3.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\libcrypto-3.dll
                    • Size 5.0MB
                    • SHA256 e03dd02fdcfb791981c9962827cfcf495f2a47a514c1526efb57f847a9df514a
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    libffi-8.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\libffi-8.dll
                    • Size 38KB
                    • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    libssl-3.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\libssl-3.dll
                    • Size 776KB
                    • SHA256 1e4bc0638682bfcbb36f4465d6a2e9944d917a60f05ecc8ddf9e96847e05e13f
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    lockscreen.png

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\lockscreen.png
                    • Size 1.8MB
                    • SHA256 1fbe7f546d0188aa55095485d5851cbe345d91267ef26e189adb13fb2e1e7823
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    logo.jpg

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\logo.jpg
                    • Size 92KB
                    • SHA256 ee3f1945d007532bd6fd7bd1e45efec61eef4863699117881b1268663b2c0350
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    python314.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\python314.dll
                    • Size 6.4MB
                    • SHA256 1ac15e2224581fc678bbd17728b9aa538d47b891b72c76499ef07e54cd74f151
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    select.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\select.pyd
                    • Size 32KB
                    • SHA256 05734bd352ce60c944d474aa62468cc5eebf400097f1d9d0c453d37aed26fcca
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    steam.py

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\steam.py
                    • Size 6KB
                    • SHA256 b4d68a167945369976774a5784a8c1e54925ec4a00abe1bd75bcf653eeba2ae5
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    unicodedata.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\unicodedata.pyd
                    • Size 740KB
                    • SHA256 4445b894f836e89a8b9fdcc88b5e59fbc76aca805baaf40aeb69e869978d4e6d
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    wallpaper.png

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI44042\wallpaper.png
                    • Size 2.0MB
                    • SHA256 b644e9fe16e00979a2eff802f0d6b2ce5ce528e53a8cc0518798fc4e83232ee3
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    memory/2444-155-0x000001F7714D0000-0x000001F7719D1000-memory.dmp

                    memory/4716-57-0x000001CEE9540000-0x000001CEE9541000-memory.dmp

                    memory/4716-103-0x000001CEE9540000-0x000001CEE9541000-memory.dmp