Analysis

  • max time kernel
    134s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    06/07/2026, 06:40

General

  • Target
    2026-07-06_d6d49b5ec6015cee71b055c018386e03_bkransomware_elex_maze_rhadamanthys.exe
  • Size 95KB
  • Sample260706-hfl52aey9m
  • SHA256 6c11613a099fba2d257c02d573934d218e35bf977b0a2ca70feb33842afecc3d
  • 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 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Adds Run key to start application 2 TTPs 3 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 Windows directory 3 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 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 39 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-06_d6d49b5ec6015cee71b055c018386e03_bkransomware_elex_maze_rhadamanthys.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-06_d6d49b5ec6015cee71b055c018386e03_bkransomware_elex_maze_rhadamanthys.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5236
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:3028
  • C:\Windows\CTS.exe
    C:\Windows\CTS.exe
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:2500
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2544
    • 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:2820
  • 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:1156
  • 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:5492

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        officeclicktorun.exe_Rules.xml

        • Path C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\officeclicktorun.exe_Rules.xml
        • Size 557KB
        • SHA256 2681f66d15a8700c6e3ebbb611c802ab0ce51fe3e9024db79901734975f2c99a
        • 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

        GD0VT8XR9X6rl87.exe

        • Path C:\Users\Admin\AppData\Local\Temp\GD0VT8XR9X6rl87.exe
        • Size 95KB
        • SHA256 e293c4b6bad5d41ce5849bc2a72f3400b5657991db5d9b25607b2e3a695118ca
        • MD5 SHA1 SHA512 SSDEEP TLSH

        CTS.exe

        • Path C:\Windows\CTS.exe
        • Size 71KB
        • SHA256 075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1156-61-0x000001FB01920000-0x000001FB01940000-memory.dmp

        memory/1156-81-0x000001FB01C80000-0x000001FB01CA0000-memory.dmp

        memory/1156-51-0x000001FB001E0000-0x000001FB002E0000-memory.dmp

        memory/1156-62-0x000001FB01E80000-0x000001FB01F80000-memory.dmp

        memory/1156-95-0x000001FB14200000-0x000001FB14220000-memory.dmp

        memory/1156-50-0x000001FB001E0000-0x000001FB002E0000-memory.dmp

        memory/1156-49-0x000001FB001E0000-0x000001FB002E0000-memory.dmp