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
    02/08/2026, 10:41

General

  • Target
    2026-08-02_d75d9201b804b08ff152c78f7a5d1dc1_cryptolocker_elex.exe
  • Size 50KB
  • Sample260802-mrfjva1cmd
  • SHA256 631736520fffd582ab4b9ba7508aaf4741a902a3f7ea38503ba36507161d9278
  • 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\2026-08-02_d75d9201b804b08ff152c78f7a5d1dc1_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-02_d75d9201b804b08ff152c78f7a5d1dc1_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4708
    • 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:2792

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 50KB
        • SHA256 bddc7db8cc81eb9db4730c380ae3f57df1c7b6fcf85105bc83f548a2eb852170
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2792-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

        memory/4708-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

        memory/4708-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

        memory/4708-2-0x0000000000400000-0x0000000000406000-memory.dmp