Overview

overview

10

Static

static

10

2026-07-09...ex.exe

windows10-2004-x64

9

2026-07-09...ex.exe

windows11-ltsc_2024-x64

9

Analysis

  • max time kernel
    148s
  • max time network
    122s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/07/2026, 08:29

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General

  • Target
    2026-07-09_6d49f653422ffd43b14b9d84bcb5e217_cryptolocker_elex.exe
  • Size 42KB
  • Sample260709-kdqrjsf12v
  • SHA256 fe104b84f2a3fcce54b22d89c193034bbff4bda50ef5188e9070c1b39c30dfab
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
adwaredefense_evasiondiscoverypersistenceransomwarespywaretrojan

Malware Config

Signatures

  • Detection of CryptoLocker Variants 2 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
  • Modifies system certificate store 2 TTPs 2 IoCs
    defense_evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 42 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 43 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\2026-07-09_6d49f653422ffd43b14b9d84bcb5e217_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-09_6d49f653422ffd43b14b9d84bcb5e217_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:6128
    • C:\Users\Admin\AppData\Local\Temp\gewos.exe
      "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:1924
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:5776
    • 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:5092
  • 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:2736
  • 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:5888

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 607B
        • SHA256 be6b74e52e5eef1f1c27c0976bf3bf1bfa99958c00bbef2898a602f691be6dae
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        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

        gewos.exe
        • Path C:\Users\Admin\AppData\Local\Temp\gewos.exe
        • Size 42KB
        • SHA256 3faf4d7cf60575894c9fc6aa7b78087b8731ab234f992bde8d83b91f2474c499
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        gewosik.exe
        • Path C:\Users\Admin\AppData\Local\Temp\gewosik.exe
        • Size 4B
        • SHA256 042aea10a0f14f2d391373599be69d53a75dde9951fc3d3cd10b6100aa7a9f24
        • MD5 SHA1 SHA512
        Submit Download

        memory/1924-31-0x0000000000400000-0x0000000000408000-memory.dmp
        Download

        memory/1924-20-0x0000000000400000-0x0000000000408000-memory.dmp
        Download

        memory/1924-22-0x0000000000400000-0x0000000000406000-memory.dmp
        Download

        memory/1924-28-0x0000000000400000-0x0000000000408000-memory.dmp
        Download

        memory/1924-29-0x0000000000400000-0x0000000000408000-memory.dmp
        Download

        memory/2736-67-0x0000020701BA0000-0x0000020701BC0000-memory.dmp
        Download

        memory/2736-34-0x00000207001E0000-0x00000207002E0000-memory.dmp
        Download

        memory/2736-58-0x0000020701A40000-0x0000020701A60000-memory.dmp
        Download

        memory/2736-96-0x0000020714240000-0x0000020714260000-memory.dmp
        Download

        memory/2736-61-0x0000020701E60000-0x0000020701F60000-memory.dmp
        Download

        memory/5888-201-0x000001737D9A0000-0x000001737DDD4000-memory.dmp
        Download

        memory/6128-2-0x0000000000400000-0x0000000000408000-memory.dmp
        Download

        memory/6128-1-0x00000000021E0000-0x00000000021E6000-memory.dmp
        Download

        memory/6128-3-0x0000000000400000-0x0000000000406000-memory.dmp
        Download

        memory/6128-0-0x0000000000404000-0x0000000000405000-memory.dmp
        Download