Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    18/08/2026, 23:22

General

  • Target
    2026-08-18_8e66403118e37dbef543ed4af610cd2f_cryptolocker_elex.exe
  • Size 42KB
  • Sample260818-3crassseqg
  • SHA256 28fc26cd4b338fba32233643728e5fc64f8fa4ab55b8d6a4eaa8edff6ba73de2
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Executes dropped EXE 1 IoCs
  • 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.

  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-18_8e66403118e37dbef543ed4af610cd2f_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-18_8e66403118e37dbef543ed4af610cd2f_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3856
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4176

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        hasfj.exe

        • Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
        • Size 42KB
        • SHA256 aa9469bea2065614daabfa87ef533485ae676741ba72f9d5083a43400fbbd4c2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3856-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/3856-1-0x00000000021F0000-0x00000000021F6000-memory.dmp

        memory/3856-2-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/3856-3-0x00000000022C0000-0x00000000022C6000-memory.dmp

        memory/4176-18-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4176-20-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4176-21-0x0000000002190000-0x0000000002196000-memory.dmp