Analysis

  • max time kernel
    149s
  • max time network
    142s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/10/2026, 18:23

General

  • Target
    jaffacakes118_Trojan-Dropper.Win32.Delf.yb.exe
  • Size 2.7MB
  • Sample261009-w1t82ats9q
  • SHA256 9cc24d28a44bb0fb3cebe34218e2df484a11031ce7c6701f2102034497933c8b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 13 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 4 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 9 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Delf.yb.exe
    "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Delf.yb.exe"
    1⤵
    • Adds policy Run key to start application
    • Adds Run key to start application
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5100
    • C:\Program Files\Common Files\Microsoft Shared\VBA\TempInst.exe
      "C:\Program Files\Common Files\Microsoft Shared\VBA\TempInst.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4716
      • C:\Users\Admin\AppData\Local\Temp\is-5LSHN.tmp\is-51P8A.tmp
        "C:\Users\Admin\AppData\Local\Temp\is-5LSHN.tmp\is-51P8A.tmp" /SL4 $500A8 "C:\Program Files\Common Files\Microsoft Shared\VBA\TempInst.exe" 2430129 51712
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:1792
        • C:\Program Files (x86)\WWW File Share Pro\WWWFileSharePro.exe
          "C:\Program Files (x86)\WWW File Share Pro\WWWFileSharePro.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • Drops file in Program Files directory
          • System Location Discovery: System Language Discovery
          • Modifies registry class
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3104
          • C:\Program Files (x86)\WWW File Share Pro\Installer.exe
            "C:\Program Files (x86)\WWW File Share Pro\Installer.exe"
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • System Location Discovery: System Language Discovery
            • Suspicious use of SetWindowsHookEx
            PID:3540
          • C:\Program Files (x86)\WWW File Share Pro\NTService.exe
            "C:\Program Files (x86)\WWW File Share Pro\NTService.exe" -uninstall
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • System Location Discovery: System Language Discovery
            • Modifies registry class
            • Suspicious use of SetWindowsHookEx
            PID:5920
          • C:\Program Files (x86)\WWW File Share Pro\NTService.exe
            "C:\Program Files (x86)\WWW File Share Pro\NTService.exe" -install
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • System Location Discovery: System Language Discovery
            • Suspicious use of SetWindowsHookEx
            PID:2320
  • C:\Program Files (x86)\WWW File Share Pro\NTService.exe
    "C:\Program Files (x86)\WWW File Share Pro\NTService.exe"
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    PID:5856

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        Installer.exe

        • Path C:\Program Files (x86)\WWW File Share Pro\Installer.exe
        • Size 86KB
        • SHA256 0bd062eaa591a8558c3af245b594cdecfb9244865579a4a5824e733660179abd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        NTService.exe

        • Path C:\Program Files (x86)\WWW File Share Pro\NTService.exe
        • Size 20KB
        • SHA256 37e5ac340ac39fafad96a922aef3cc42c38de50981edc63ceb1ec784dbc8ac7a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Note.txt

        • Path C:\Program Files (x86)\WWW File Share Pro\Note.txt
        • Size 285B
        • SHA256 35a66ebec884ea8ff9bba3615c235cc8f312e5dbdc6eb7db3c999e0b998c4fa3
        • MD5 SHA1 SHA512 TLSH

        setting.ini

        • Path C:\Program Files (x86)\WWW File Share Pro\Plugins\CaptureScreen\setting.ini
        • Size 117B
        • SHA256 eb991423fbfa0399c7296e37d76138b1bd1674b2bba8fed25319105942e6bd77
        • MD5 SHA1 SHA512 TLSH

        setting.ini

        • Path C:\Program Files (x86)\WWW File Share Pro\Plugins\Message\setting.ini
        • Size 103B
        • SHA256 7c1e7ab58027f356bc9b7106a0e6f975b7e9a21aec0314aef80e006fbac07e23
        • MD5 SHA1 SHA512 TLSH

        setting.ini

        • Path C:\Program Files (x86)\WWW File Share Pro\Plugins\RemoteDownload\setting.ini
        • Size 120B
        • SHA256 75c22136bacc199888560c7e94019cfc380459bcf8386cf84e0d9946ac80b3ad
        • MD5 SHA1 SHA512 TLSH

        setting.ini

        • Path C:\Program Files (x86)\WWW File Share Pro\Plugins\ShutdownReboot\setting.ini
        • Size 119B
        • SHA256 73629e412eba009895879f1b479085a98a03c8ca9e50a0d8209f7773771cdb55
        • MD5 SHA1 SHA512 TLSH

        setting.ini

        • Path C:\Program Files (x86)\WWW File Share Pro\Plugins\SystemInfo\setting.ini
        • Size 107B
        • SHA256 6251d8b755d4f31df529fbbb757e3148696035d2800e219a36b9365916491a0d
        • MD5 SHA1 SHA512 TLSH

        setting.ini

        • Path C:\Program Files (x86)\WWW File Share Pro\Plugins\Webcam\setting.ini
        • Size 109B
        • SHA256 c04a289986e79e67b781da0a1daff670a2a543a9d76e9a100dc6fbec4147e19a
        • MD5 SHA1 SHA512 TLSH

        WFS.url

        • Path C:\Program Files (x86)\WWW File Share Pro\WFS.url
        • Size 48B
        • SHA256 7e6b23a9e86e5303a842d4dfa17fe6191ede16bfe505903b464760d519395d5f
        • MD5 SHA1 SHA512

        WWWFileSharePro.exe

        • Path C:\Program Files (x86)\WWW File Share Pro\WWWFileSharePro.exe
        • Size 226KB
        • SHA256 e900889067ceeeaf5ae8440c3c8da17d66a518a21cf1b42e45c3759580e77c0d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        fileshare.ini

        • Path C:\Program Files (x86)\WWW File Share Pro\fileshare.ini
        • Size 468B
        • SHA256 ef486ee6adccd059e60fe960d413e87fadfcb6976fd45d60828a152fa50df73d
        • MD5 SHA1 SHA512 TLSH

        plugin.cfg

        • Path C:\Program Files (x86)\WWW File Share Pro\plugin.cfg
        • Size 80B
        • SHA256 ccfcca2c753f6364c056cfd1dd641615c8186c0dd381cdff753c5d7606f61486
        • MD5 SHA1 SHA512 TLSH

        unins000.exe

        • Path C:\Program Files (x86)\WWW File Share Pro\unins000.exe
        • Size 625KB
        • SHA256 ae1f4988105fd984f3e9d2c6224802bedb9e312185127677f2acb5d9765b9c20
        • MD5 SHA1 SHA512 SSDEEP TLSH

        upload.dll

        • Path C:\Program Files (x86)\WWW File Share Pro\upload.dll
        • Size 14KB
        • SHA256 9291a1c6b8745dd568867ab6db7ccb82d63f89a4555cf16d5b90c61ddc7ba614
        • MD5 SHA1 SHA512 SSDEEP TLSH

        upload.dll

        • Path C:\Program Files (x86)\WWW File Share Pro\upload.dll
        • Size 14KB
        • SHA256 a8d8a6331407d811b15090e61df2153f98e2250d0e3c51633b93c4ec1f000482
        • MD5 SHA1 SHA512 SSDEEP TLSH

        web.css

        • Path C:\Program Files (x86)\WWW File Share Pro\web.css
        • Size 245B
        • SHA256 4928682cfc53b5962c4fe864ef7bad3d469eab6ace7d6a3ceea312243960db9f
        • MD5 SHA1 SHA512 TLSH

        wfsp.chm

        • Path C:\Program Files (x86)\WWW File Share Pro\wfsp.chm
        • Size 600KB
        • SHA256 201c646eeacf462293da3c4c50a957262615356bc06091702abe934fbb1cc71e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        TempInst.exe

        • Path C:\Program Files\Common Files\microsoft shared\VBA\TempInst.exe
        • Size 2.5MB
        • SHA256 4dfc7de44f415f5480411dbd72adbf23b7569774384841cca7530f7b4a720d42
        • MD5 SHA1 SHA512 SSDEEP TLSH

        is-51P8A.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-5LSHN.tmp\is-51P8A.tmp
        • Size 616KB
        • SHA256 d3f6c4e1b8e6d11661d4bdf79b438382bb5951e7a42cedbcac3ebbe88012373c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Comctl32.ocx

        • Path C:\Windows\SysWOW64\Comctl32.ocx
        • Size 594KB
        • SHA256 bf4147f8a12bec3d54e3ef941475e29d852a1876117c6ce88f47b882ef6d4a03
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MSVBVM50.DLL

        • Path C:\Windows\SysWOW64\MSVBVM50.DLL
        • Size 1.3MB
        • SHA256 8611dc1b60ae5c383bba6cb3ffd8a51aeebff23b95844f0ab3d6e5ecd0fadc84
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Mswinsck.ocx

        • Path C:\Windows\SysWOW64\Mswinsck.ocx
        • Size 105KB
        • SHA256 bf7e47c16d7e1c0e88534f4ef95e09d0fd821ed1a06b0d95a389b35364b63ff5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        NTSVC.OCX

        • Path C:\Windows\SysWOW64\NTSVC.OCX
        • Size 44KB
        • SHA256 1e9ffb1a7e8963dc264264f79a76a4ef83ab60a9c0b13b07ebf48d8243156d73
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1792-25-0x0000000000400000-0x00000000004A8000-memory.dmp

        memory/1792-217-0x0000000000400000-0x00000000004A8000-memory.dmp

        memory/1792-27-0x0000000000400000-0x00000000004A8000-memory.dmp

        memory/1792-22-0x0000000000400000-0x00000000004A8000-memory.dmp

        memory/1792-17-0x0000000000400000-0x00000000004A8000-memory.dmp

        memory/1792-16-0x0000000000400000-0x00000000004A8000-memory.dmp

        memory/3104-283-0x0000000000400000-0x0000000000508000-memory.dmp

        memory/3104-215-0x0000000000400000-0x0000000000508000-memory.dmp

        memory/3104-271-0x00000000064F0000-0x00000000065E9000-memory.dmp

        memory/3104-270-0x0000000006250000-0x00000000064E2000-memory.dmp

        memory/3104-268-0x0000000000400000-0x0000000000508000-memory.dmp

        memory/3540-240-0x0000000000400000-0x0000000000448000-memory.dmp

        memory/3540-273-0x0000000000400000-0x0000000000448000-memory.dmp

        memory/4716-8-0x0000000000400000-0x0000000000413000-memory.dmp

        memory/4716-10-0x000000000040C000-0x000000000040D000-memory.dmp

        memory/4716-21-0x0000000000400000-0x0000000000413000-memory.dmp

        memory/4716-218-0x0000000000400000-0x0000000000413000-memory.dmp

        memory/5100-0-0x0000000000400000-0x0000000000421000-memory.dmp

        memory/5100-6-0x0000000000400000-0x0000000000421000-memory.dmp