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
    21/04/2026, 16:49

General

  • Target
    2026-04-21_e16e7b43b0c8809b51e21ed4c61dae24_cryptolocker_elex.exe
  • Size 63KB
  • Sample260421-vb1tvads2t
  • SHA256 907753ca02271c77d70f0fe9c90cb3d1308aff1c1faf86665736799ed0107f13
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 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\2026-04-21_e16e7b43b0c8809b51e21ed4c61dae24_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-21_e16e7b43b0c8809b51e21ed4c61dae24_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3388
    • 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:4196

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 64KB
        • SHA256 6f0815fd0ec817a8772ef0134144bf7cf6889f5cefe9ad6277e9b34a067bc49c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3388-0-0x0000000000780000-0x0000000000783000-memory.dmp

        memory/3388-1-0x00000000007B0000-0x00000000007B6000-memory.dmp

        memory/3388-2-0x00000000007B0000-0x00000000007B6000-memory.dmp

        memory/3388-3-0x00000000007D0000-0x00000000007D6000-memory.dmp

        memory/3388-18-0x0000000000780000-0x0000000000783000-memory.dmp

        memory/4196-17-0x0000000000740000-0x0000000000780000-memory.dmp

        memory/4196-20-0x0000000002200000-0x0000000002206000-memory.dmp

        memory/4196-26-0x0000000000740000-0x0000000000780000-memory.dmp

        memory/4196-27-0x0000000002BE0000-0x0000000002C44000-memory.dmp

        memory/4196-31-0x0000000002BE0000-0x0000000002C44000-memory.dmp