Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    04/07/2026, 08:24

General

  • Target
    2026-07-04_8196653a95c11ecc150f37be1da4fe83_cryptolocker_elex.exe
  • Size 52KB
  • Sample260704-ka8sysc171
  • SHA256 12d38403be83ae6f8b3ca252b298a22c05a16445f01f2298ee0bbca1b9558891
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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\2026-07-04_8196653a95c11ecc150f37be1da4fe83_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-04_8196653a95c11ecc150f37be1da4fe83_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4388
    • 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:3876

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 52KB
        • SHA256 31c400e562d9b2a3444d1739a1c966bc8494783c2ddc2b07e092ab60b4dec1e5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3876-25-0x0000000000690000-0x0000000000696000-memory.dmp

        memory/4388-0-0x0000000000590000-0x0000000000596000-memory.dmp

        memory/4388-2-0x0000000000400000-0x0000000000406000-memory.dmp

        memory/4388-1-0x0000000000590000-0x0000000000596000-memory.dmp