Analysis

  • max time kernel
    150s
  • max time network
    159s
  • 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, 12:50

General

  • Target
    2026-08-18_b405fcaf717e20b25b93b974359c9dad_cryptolocker_elex.exe
  • Size 33KB
  • Sample260818-p2yvaabm2x
  • SHA256 24d34ab833861562f400f49f62321e99b82b57078fc803d53ec1e205f1973493
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 2 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_b405fcaf717e20b25b93b974359c9dad_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-18_b405fcaf717e20b25b93b974359c9dad_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3600
    • C:\Users\Admin\AppData\Local\Temp\rewok.exe
      "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4056

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        rewok.exe

        • Path C:\Users\Admin\AppData\Local\Temp\rewok.exe
        • Size 33KB
        • SHA256 d7d5bc7f61472312450780aac16ea2dd4264c5cdca7ae710538ce08067991750
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3600-0-0x0000000000404000-0x0000000000405000-memory.dmp

        memory/3600-1-0x0000000000760000-0x0000000000766000-memory.dmp

        memory/3600-2-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/3600-3-0x0000000000400000-0x0000000000406000-memory.dmp

        memory/4056-20-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/4056-22-0x0000000000400000-0x0000000000406000-memory.dmp

        memory/4056-28-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/4056-29-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/4056-31-0x0000000000400000-0x0000000000408000-memory.dmp