Overview

overview

10

Static

static

10

2026-07-08...ex.exe

windows10-2004-x64

9

2026-07-08...ex.exe

windows11-ltsc_2024-x64

9

Analysis

  • max time kernel
    38s
  • max time network
    155s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/07/2026, 08:36

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General

  • Target
    2026-07-08_2103815b437439b6d87a16ed34311b93_cryptolocker_elex.exe
  • Size 88KB
  • Sample260708-khrveaev7j
  • SHA256 8fdc15daeac27ac1143986e4a938335eea071f5330ec7af173d0fe6d97e4603c
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
adwarediscoverypersistencespyware

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 15 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 22 IoCs
  • Suspicious use of FindShellTrayWindow 24 IoCs
  • Suspicious use of SendNotifyMessage 8 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-08_2103815b437439b6d87a16ed34311b93_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-08_2103815b437439b6d87a16ed34311b93_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3232
    • C:\Users\Admin\AppData\Local\Temp\demka.exe
      "C:\Users\Admin\AppData\Local\Temp\demka.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4808
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2752
    • 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:3552
  • 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:5752
  • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
    "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
    1⤵
      PID:5260

    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

          demka.exe
          • Path C:\Users\Admin\AppData\Local\Temp\demka.exe
          • Size 89KB
          • SHA256 997c0b5c3b00539f8b75ba530b7446d852f06d9f76e7686c02cac37590e617a5
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/3232-3-0x0000000000400000-0x0000000000406000-memory.dmp
          Download

          memory/3232-0-0x0000000000404000-0x0000000000405000-memory.dmp
          Download

          memory/3232-2-0x0000000000400000-0x0000000000410000-memory.dmp
          Download

          memory/3232-1-0x0000000002280000-0x0000000002286000-memory.dmp
          Download

          memory/4808-20-0x0000000000400000-0x0000000000410000-memory.dmp
          Download

          memory/4808-22-0x0000000000400000-0x0000000000410000-memory.dmp
          Download

          memory/4808-23-0x0000000000400000-0x0000000000406000-memory.dmp
          Download

          memory/4808-29-0x0000000000400000-0x0000000000410000-memory.dmp
          Download

          memory/5260-54-0x0000021D80000000-0x0000021D80100000-memory.dmp
          Download

          memory/5260-86-0x0000021D83AE0000-0x0000021D83B00000-memory.dmp
          Download

          memory/5260-70-0x0000021D83700000-0x0000021D83720000-memory.dmp
          Download

          memory/5260-100-0x0000021D93FA0000-0x0000021D93FC0000-memory.dmp
          Download

          memory/5260-71-0x0000021D93B60000-0x0000021D93C60000-memory.dmp
          Download