Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    04/05/2026, 04:16

General

  • Target
    2026-05-04_995ea395033b16e5cc89e36df30f0a23_cryptolocker_elex.exe
  • Size 76KB
  • Sample260504-ev1eesb18y
  • SHA256 2c3a7122a32840438aa6cb535409e3462b886aeab675cb9fd5b2730a2178583e
  • 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\2026-05-04_995ea395033b16e5cc89e36df30f0a23_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-04_995ea395033b16e5cc89e36df30f0a23_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:704
    • 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:3188

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 76KB
        • SHA256 5acb55ff252f0438de9e1beda43c61108334d673b62e290889849dd8d45a46f6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/704-0-0x0000000000650000-0x0000000000656000-memory.dmp

        memory/704-1-0x0000000000650000-0x0000000000656000-memory.dmp

        memory/704-2-0x00000000021A0000-0x00000000021A6000-memory.dmp

        memory/704-16-0x00000000006B0000-0x000000000076F000-memory.dmp

        memory/3188-18-0x0000000000510000-0x0000000000516000-memory.dmp

        memory/3188-24-0x00000000004D0000-0x00000000004D6000-memory.dmp

        memory/3188-25-0x00000000020B0000-0x000000000216F000-memory.dmp

        memory/3188-30-0x00000000020B0000-0x000000000216F000-memory.dmp