Analysis

  • max time kernel
    150s
  • 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
    28/06/2026, 23:34

General

  • Target
    2026-06-28_2e79f0a8de4a864304ae40d831ac4367_cryptolocker_elex.exe
  • Size 42KB
  • Sample260628-3khcvsht5l
  • SHA256 15c9fde53a117ff13396c4e3d3272743363d119323aa2cbe815c4825f61b7129
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • Detects executables built or packed with MPress PE compressor 5 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\2026-06-28_2e79f0a8de4a864304ae40d831ac4367_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-28_2e79f0a8de4a864304ae40d831ac4367_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1056
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4284

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        misid.exe

        • Path C:\Users\Admin\AppData\Local\Temp\misid.exe
        • Size 42KB
        • SHA256 4dc2dfcea6d373fe9d464d835662009a53b0bb2795d6e727c039c739396db198
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1056-0-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/1056-1-0x0000000000504000-0x0000000000505000-memory.dmp

        memory/1056-2-0x0000000000730000-0x0000000000736000-memory.dmp

        memory/1056-3-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/1056-4-0x0000000000750000-0x0000000000756000-memory.dmp

        memory/4284-18-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/4284-20-0x00000000020E0000-0x00000000020E6000-memory.dmp

        memory/4284-26-0x0000000000500000-0x0000000000510000-memory.dmp