Analysis

  • max time kernel
    148s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    19/05/2026, 00:52

General

  • Target
    2026-05-19_da235a7f282eb4bce466a3581c6cacdc_cryptolocker_elex.exe
  • Size 53KB
  • Sample260519-a79fmsax9p
  • SHA256 4cd2bd0fbfb79f53680fe073d2898687816a8e2a97d10759be67ca273b61ee2e
  • 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 2 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\2026-05-19_da235a7f282eb4bce466a3581c6cacdc_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-19_da235a7f282eb4bce466a3581c6cacdc_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4148
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:368

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        asih.exe

        • Path C:\Users\Admin\AppData\Local\Temp\asih.exe
        • Size 53KB
        • SHA256 3a6d708a7c078076f43eae2cc1bfe37aba6e01ff1f554a7086c287e8be36ef52
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/368-17-0x00000000005B0000-0x00000000005B6000-memory.dmp

        memory/368-18-0x00000000005D0000-0x00000000005D6000-memory.dmp

        memory/4148-0-0x0000000000660000-0x0000000000666000-memory.dmp

        memory/4148-1-0x0000000000660000-0x0000000000666000-memory.dmp

        memory/4148-2-0x00000000007D0000-0x00000000007D6000-memory.dmp