Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    06/05/2026, 10:43

General

  • Target
    2026-05-06_4ba7979f406469ecbf698905d7805665_cryptolocker_elex.exe
  • Size 41KB
  • Sample260506-mscvcabv2n
  • SHA256 01276c3155f7c014b5b3425a6f65371865f03412b9c195e56cb5ac9572cf6946
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 6 IoCs
  • Detection of Cryptolocker Samples 6 IoCs
  • Detects executables built or packed with MPress PE compressor 6 IoCs
  • 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\2026-05-06_4ba7979f406469ecbf698905d7805665_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-06_4ba7979f406469ecbf698905d7805665_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2304
    • 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:4068

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 41KB
        • SHA256 095042760187930fc1e24a0f3975f64d7e9e7ad9ed5d3e9c454456e7d246249b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2304-1-0x0000000000504000-0x0000000000505000-memory.dmp

        memory/2304-0-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/2304-2-0x0000000002150000-0x0000000002156000-memory.dmp

        memory/2304-3-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/2304-4-0x0000000002180000-0x0000000002186000-memory.dmp

        memory/2304-19-0x00000000022F0000-0x00000000028F2000-memory.dmp

        memory/4068-17-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/4068-22-0x0000000002170000-0x0000000002176000-memory.dmp

        memory/4068-28-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/4068-21-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/4068-29-0x0000000002360000-0x0000000002962000-memory.dmp