Overview

overview

10

Static

static

10

2026-06-30...ex.exe

windows10-2004-x64

9

2026-06-30...ex.exe

windows11-ltsc_2024-x64

9

Analysis

  • max time kernel
    72s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    01/07/2026, 06:20

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General

  • Target
    2026-06-30_14160f9090e66fbcb2a505869bfb26b7_cryptolocker_elex.exe
  • Size 43KB
  • Sample260701-g32cssfy5j
  • SHA256 0b8fc98f931c30dec6e23e99192de410e87604872a2389b102b4db1371749ac7
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
adwarediscoverypersistenceransomwarespyware

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • Detects executables built or packed with MPress PE compressor 5 IoCs
  • 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.

    persistence
  • 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.

  • Enumerates physical storage devices 1 TTPs

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

  • 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.

    discovery
  • 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
    adwarespyware
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 40 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 39 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.

    persistence
  • Uses Volume Shadow Copy WMI provider

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

    ransomware
  • Uses Volume Shadow Copy service COM API

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

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-06-30_14160f9090e66fbcb2a505869bfb26b7_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-30_14160f9090e66fbcb2a505869bfb26b7_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4956
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:256
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1340
    • 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:5512
  • 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:5632
  • 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:5572
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:4556

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          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
          Submit Download

          misid.exe
          • Path C:\Users\Admin\AppData\Local\Temp\misid.exe
          • Size 43KB
          • SHA256 85d52245d2ef3183bf73f494e2b940817f2a33689332b6f1375d35198136c0df
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/256-27-0x0000000000500000-0x0000000000510000-memory.dmp
          Download

          memory/256-21-0x0000000002280000-0x0000000002286000-memory.dmp
          Download

          memory/256-19-0x0000000000500000-0x0000000000510000-memory.dmp
          Download

          memory/4956-4-0x00000000021E0000-0x00000000021E6000-memory.dmp
          Download

          memory/4956-0-0x0000000000500000-0x0000000000510000-memory.dmp
          Download

          memory/4956-3-0x0000000000500000-0x0000000000510000-memory.dmp
          Download

          memory/4956-2-0x00000000021C0000-0x00000000021C6000-memory.dmp
          Download

          memory/4956-1-0x0000000000504000-0x0000000000505000-memory.dmp
          Download

          memory/5572-210-0x000001F49FA90000-0x000001F49FD4C000-memory.dmp
          Download

          memory/5572-219-0x000001F49FA90000-0x000001F49FD4C000-memory.dmp
          Download

          memory/5632-29-0x00000200801E0000-0x00000200802E0000-memory.dmp
          Download

          memory/5632-72-0x0000020081BA0000-0x0000020081BC0000-memory.dmp
          Download

          memory/5632-94-0x0000020094180000-0x00000200941A0000-memory.dmp
          Download

          memory/5632-61-0x0000020081D80000-0x0000020081E80000-memory.dmp
          Download

          memory/5632-60-0x0000020081940000-0x0000020081960000-memory.dmp
          Download