Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/08/2026, 01:05

General

  • Target
    2026-08-20_add92a9e0d5cd6f8ec4a7e9db3afc4b9_cryptolocker_elex.exe
  • Size 34KB
  • Sample260820-bft3bacp5w
  • SHA256 1991b7c7474924b228c3503d1f9acb1c7a139c78364b03b2bb1d294145fc5ed7
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 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\2026-08-20_add92a9e0d5cd6f8ec4a7e9db3afc4b9_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-20_add92a9e0d5cd6f8ec4a7e9db3afc4b9_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:992
    • C:\Users\Admin\AppData\Local\Temp\hurok.exe
      "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4840

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        hurok.exe

        • Path C:\Users\Admin\AppData\Local\Temp\hurok.exe
        • Size 34KB
        • SHA256 41007d8c8bf0c419ad34fdf65ff9980d573ab058c9dcda4af49f0f7caed9012e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/992-0-0x0000000002220000-0x0000000002226000-memory.dmp

        memory/992-1-0x0000000002220000-0x0000000002226000-memory.dmp

        memory/992-2-0x0000000000400000-0x0000000000406000-memory.dmp

        memory/4840-26-0x00000000005E0000-0x00000000005E6000-memory.dmp