Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/07/2026, 03:37

General

  • Target
    2026-07-06_5a97ba451225203ae6b7d24d4948fec5_elex_wannacry.exe
  • Size 20.8MB
  • Sample260707-d6hhbaes3k
  • SHA256 d7d4bf36b03837696785e5b2da8ddeb7d29db3181ab17440b492425b7d82dad5
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Executes dropped EXE 1 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies registry class 35 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-06_5a97ba451225203ae6b7d24d4948fec5_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-06_5a97ba451225203ae6b7d24d4948fec5_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2488
    • C:\Program Files\Common Files\Microsoft Shared L\lsass.exe
      1
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2788
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2788 -s 472
        3⤵
        • Program crash
        PID:4808
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2788 -ip 2788
    1⤵
      PID:624
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3372
      • C:\Windows\explorer.exe
        explorer.exe /LOADSAVEDWINDOWS
        2⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Enumerates connected drives
        • Checks SCSI registry key(s)
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:4048
    • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
      "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:1640
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:3868

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          lsass.exe

          • Path C:\Program Files\Common Files\Microsoft Shared L\lsass.exe
          • Size 33.2MB
          • SHA256 544419da9559f9b28b102d2eaa5499d4256ebfa5194484e065591cd7b1950e83
          • MD5 SHA1 SHA512 SSDEEP TLSH

          prep_Activatable Class_Hermes_perf.cache

          • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
          • Size 599B
          • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
          • MD5 SHA1 SHA512 TLSH

          memory/1640-40-0x000001EF03E00000-0x000001EF03E20000-memory.dmp

          memory/1640-22-0x000001EF03E40000-0x000001EF03F40000-memory.dmp

          memory/1640-21-0x000001EF03A40000-0x000001EF03A60000-memory.dmp

          memory/1640-8-0x000001EF001E0000-0x000001EF002E0000-memory.dmp

          memory/1640-54-0x000001EF14310000-0x000001EF14330000-memory.dmp

          memory/1640-183-0x000001EF16C40000-0x000001EF16EDE000-memory.dmp

          memory/3868-184-0x0000020F886A0000-0x0000020F8893E000-memory.dmp