Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    09/08/2026, 04:01

General

  • Target
    2026-08-09_ddd6370cf1656f23391a9d030932be20_cryptolocker_elex.exe
  • Size 42KB
  • Sample260809-elfnnattcy
  • SHA256 cf56d176efdfb6e706e184a5c76ac0c6b20221b1356ba2116b56889f6a772a3b
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 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\2026-08-09_ddd6370cf1656f23391a9d030932be20_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-09_ddd6370cf1656f23391a9d030932be20_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:640
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3780

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        hasfj.exe

        • Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
        • Size 42KB
        • SHA256 2295216dd3f1b0f571f2a11ee1cf8443562e491981649ab2bd1d5f1e814dcbd1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/640-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/640-1-0x0000000002240000-0x0000000002246000-memory.dmp

        memory/640-2-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/640-3-0x00000000022F0000-0x00000000022F6000-memory.dmp

        memory/3780-17-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/3780-20-0x0000000003140000-0x0000000003146000-memory.dmp

        memory/3780-19-0x0000000008000000-0x000000000800A000-memory.dmp