Analysis

  • max time kernel
    149s
  • max time network
    130s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    04/05/2026, 11:58

General

  • Target
    2026-05-04_0c11a943c69b71373fd5fec0db25d3a1_cryptolocker_elex.exe
  • Size 62KB
  • Sample260504-n5eedaev5m
  • SHA256 662b0853788e4bdf5827abe93a6852a22cb9d24d84a95d48786e01dad648c199
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 2 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\2026-05-04_0c11a943c69b71373fd5fec0db25d3a1_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-04_0c11a943c69b71373fd5fec0db25d3a1_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2552
    • C:\Users\Admin\AppData\Local\Temp\rewok.exe
      "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2488

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        rewok.exe

        • Path C:\Users\Admin\AppData\Local\Temp\rewok.exe
        • Size 62KB
        • SHA256 9257c6b0ee6253c61477b2acb9327072f33733c7694c92adccf93511d33086ed
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2488-17-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/2488-28-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/2488-29-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/2488-32-0x00000000037F0000-0x00000000037F7000-memory.dmp

        memory/2488-31-0x0000000002FC0000-0x000000000303C000-memory.dmp

        memory/2488-67-0x0000000002FC0000-0x000000000303C000-memory.dmp

        memory/2552-0-0x0000000000404000-0x0000000000405000-memory.dmp

        memory/2552-1-0x0000000002200000-0x0000000002206000-memory.dmp

        memory/2552-2-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/2552-3-0x0000000000400000-0x0000000000406000-memory.dmp

        memory/2552-20-0x0000000003380000-0x00000000033FC000-memory.dmp