Analysis

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

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    07/09/2026, 04:42

General

  • Target
    2026-09-06_3ee3d5f536c17dcff2410ac501361ece_cryptolocker_elex.exe
  • Size 1.0MB
  • Sample260907-fb5epsxsbt
  • SHA256 499fef9211c4e43051e2c65b0e9c8caa5933572b9a7f947ee458f14094b0b952
  • 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\2026-09-06_3ee3d5f536c17dcff2410ac501361ece_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-06_3ee3d5f536c17dcff2410ac501361ece_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5816
    • 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:5464

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        hasfj.exe

        • Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
        • Size 1.0MB
        • SHA256 0d8e9dc9784a56f1847ed4f72891e92611c911284c7a3cdead12ea9438a9642f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/5464-17-0x0000000008000000-0x0000000008022000-memory.dmp

        memory/5464-19-0x00000000007B0000-0x00000000007B6000-memory.dmp

        memory/5464-25-0x0000000008000000-0x0000000008022000-memory.dmp

        memory/5816-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/5816-1-0x0000000002250000-0x0000000002256000-memory.dmp

        memory/5816-2-0x0000000008000000-0x0000000008022000-memory.dmp

        memory/5816-3-0x0000000003150000-0x0000000003156000-memory.dmp