Analysis

  • max time kernel
    150s
  • max time network
    140s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/06/2026, 04:24

General

  • Target
    2026-06-29_b8bdcf6586e4b29e17d809b5bd315638_elex_wannacry.exe
  • Size 8.9MB
  • Sample260630-e1sxjaev7x
  • SHA256 1bc61cd6455952d0759334ff8d56ae11fe72c892e4202a1efccb96627475ff4d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • UPX dump on OEP (original entry point) 7 IoCs
  • Drops file in Drivers directory 3 IoCs
  • Sets service image path in registry 3 TTPs 2 IoCs

    This determines the executable launched when a service starts. It can be used to establish persistence.

  • ACProtect 1.3x - 1.4x DLL software 5 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 8 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Modifies WinLogon 2 TTPs 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • UPX packed file 5 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-06-29_b8bdcf6586e4b29e17d809b5bd315638_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-29_b8bdcf6586e4b29e17d809b5bd315638_elex_wannacry.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops file in Drivers directory
    • Sets service image path in registry
    • Loads dropped DLL
    • Adds Run key to start application
    • Enumerates connected drives
    • Modifies WinLogon
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3928
    • C:\Users\Admin\AppData\Local\Temp\2026-06-29_b8bdcf6586e4b29e17d809b5bd315638_elex_wannacry.exe
      C:\Users\Admin\AppData\Local\Temp\2026-06-29_b8bdcf6586e4b29e17d809b5bd315638_elex_wannacry.exe
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2844
      • C:\Users\Admin\AppData\Local\Temp\2026-06-29_b8bdcf6586e4b29e17d809b5bd315638_elex_wannacry.exe
        C:\Users\Admin\AppData\Local\Temp\2026-06-29_b8bdcf6586e4b29e17d809b5bd315638_elex_wannacry.exe
        3⤵
        • Enumerates connected drives
        PID:1276
    • C:\Windows\SysWOW64\reg.exe
      reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects" /f
      2⤵
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      PID:6024
    • C:\Users\Admin\AppData\Local\Temp\2026-06-29_b8bdcf6586e4b29e17d809b5bd315638_elex_wannacry.exe
      C:\Users\Admin\AppData\Local\Temp\2026-06-29_b8bdcf6586e4b29e17d809b5bd315638_elex_wannacry.exe
      2⤵
      • Drops file in Drivers directory
      • Sets service image path in registry
      • Loads dropped DLL
      • Adds Run key to start application
      • Enumerates connected drives
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:1816
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:5300
  • C:\Users\Admin\Local Settings\Application Data\cftmon.exe
    "C:\Users\Admin\Local Settings\Application Data\cftmon.exe"
    1⤵
    • Executes dropped EXE
    • Enumerates connected drives
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:6508
    • C:\Users\Admin\Local Settings\Application Data\cftmon.exe
      "C:\Users\Admin\Local Settings\Application Data\cftmon.exe"
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      PID:2932

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        cftmon.exe

        • Path C:\Users\Admin\AppData\Local\cftmon.exe
        • Size 8.9MB
        • SHA256 d0e85b8c7479f2c6697235ce01b6d4035285874660ab31fe9d0ca3c67aefdf64
        • MD5 SHA1 SHA512 SSDEEP TLSH

        spools.exe

        • Path C:\Windows\SysWOW64\drivers\spools.exe
        • Size 8.9MB
        • SHA256 2ba8db0fef944c3de86d91b55ba3a1206492bc864710a6407cf2045bcb949a70
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ftpdll.dll

        • Path C:\Windows\SysWOW64\ftpdll.dll
        • Size 5KB
        • SHA256 eddf092d901afe128322910c3ff41a3f242d33d6b4cdf91ece327076b324ccbb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1276-36-0x0000000000400000-0x0000000000423000-memory.dmp

        memory/1816-34-0x0000000000400000-0x0000000000423000-memory.dmp

        memory/1816-32-0x0000000010000000-0x000000001010B000-memory.dmp

        memory/1816-37-0x0000000010000000-0x000000001010B000-memory.dmp

        memory/2844-33-0x0000000000400000-0x0000000000423000-memory.dmp

        memory/2932-38-0x0000000000400000-0x0000000000423000-memory.dmp

        memory/3928-11-0x0000000010000000-0x000000001010B000-memory.dmp

        memory/3928-12-0x0000000000400000-0x0000000000423000-memory.dmp

        memory/3928-0-0x0000000000400000-0x0000000000423000-memory.dmp

        memory/3928-10-0x0000000010000000-0x000000001010B000-memory.dmp

        memory/6508-35-0x0000000000400000-0x0000000000423000-memory.dmp