Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    15/04/2026, 08:08

General

  • Target
    2026-04-15_d561706bb4a9717fbb7b9ef1d0d5f5df_cryptolocker_elex.exe
  • Size 57KB
  • Sample260415-j111csct9x
  • SHA256 fc272026fed16cadf3f0f0d4477314031424fda86edb46069db3c224aa925e84
  • 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\2026-04-15_d561706bb4a9717fbb7b9ef1d0d5f5df_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-15_d561706bb4a9717fbb7b9ef1d0d5f5df_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3432
    • 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:1856

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 57KB
        • SHA256 cc8aa51c956a74699d451018a7aa3d382afa0f9cc4830360d359d1cc9424ad22
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1856-19-0x0000000000400000-0x000000000040C000-memory.dmp

        memory/1856-27-0x0000000000400000-0x000000000040C000-memory.dmp

        memory/1856-28-0x0000000000400000-0x000000000040C000-memory.dmp

        memory/1856-30-0x0000000000400000-0x000000000040C000-memory.dmp

        memory/3432-0-0x0000000000404000-0x0000000000405000-memory.dmp

        memory/3432-1-0x0000000002200000-0x0000000002206000-memory.dmp

        memory/3432-2-0x0000000000400000-0x000000000040C000-memory.dmp

        memory/3432-3-0x0000000000400000-0x0000000000406000-memory.dmp