Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/10/2026, 20:08

General

  • Target
    2026-10-27_fb6181660a94db686654555190a17e7b_cryptolocker_elex.exe
  • Size 35KB
  • Sample261027-ywtstaed74
  • SHA256 014ead468b7ba3ca3f736e3cbf05d5cd983d85b4ba02ac4fee3ea93d6fc62344
  • 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).

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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\2026-10-27_fb6181660a94db686654555190a17e7b_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-27_fb6181660a94db686654555190a17e7b_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4600
    • C:\Users\Admin\AppData\Local\Temp\hurok.exe
      "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
      2⤵
      • Executes dropped EXE
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      PID:4836
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:4216

    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 35KB
          • SHA256 32f2b15675a7409139f685010f301682f19333c92c3b23a62fba4f36b4a56450
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/4600-0-0x00000000021A0000-0x00000000021A6000-memory.dmp

          memory/4600-1-0x00000000021A0000-0x00000000021A6000-memory.dmp

          memory/4600-2-0x0000000000400000-0x0000000000406000-memory.dmp