Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    05/05/2026, 15:01

General

  • Target
    2026-05-05_a5b9502fd06f5557f324e112779df075_cryptolocker_elex.exe
  • Size 33KB
  • Sample260505-sd558saw6w
  • SHA256 2441167c77200ccfcaabdc11bf45cdf3400bb6e722dce95e5171519fb53201f1
  • 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\2026-05-05_a5b9502fd06f5557f324e112779df075_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-05_a5b9502fd06f5557f324e112779df075_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4884
    • 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:4936

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 33KB
        • SHA256 dd8f0d93435e4724cdafff3b17cc5bb1aee1b958eb884d982638f0a679fc5c16
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4884-0-0x0000000000690000-0x0000000000696000-memory.dmp

        memory/4884-1-0x0000000000690000-0x0000000000696000-memory.dmp

        memory/4884-2-0x0000000000840000-0x0000000000846000-memory.dmp

        memory/4884-16-0x00000000022A0000-0x0000000002383000-memory.dmp

        memory/4936-18-0x00000000004C0000-0x00000000004C6000-memory.dmp

        memory/4936-19-0x00000000004E0000-0x00000000004E6000-memory.dmp