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
    13/08/2026, 09:40

General

  • Target
    2026-08-13_52408ef6e24e86dafd84d858088752d3_cryptolocker_elex.exe
  • Size 1.0MB
  • Sample260813-lnaczseq3v
  • SHA256 0677ab0230d0ebcf4f959267beb9cf550619e1eef6b115982ed236de3046a697
  • 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\2026-08-13_52408ef6e24e86dafd84d858088752d3_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-13_52408ef6e24e86dafd84d858088752d3_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1620
    • 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:764

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        hasfj.exe

        • Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
        • Size 1.0MB
        • SHA256 0ff4feae9db29d91cf46b9c238cd8ae4c756e806e368cd5a53bed3a111c37f42
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/764-17-0x0000000008000000-0x0000000008022000-memory.dmp

        memory/764-25-0x0000000008000000-0x0000000008022000-memory.dmp

        memory/764-19-0x0000000003000000-0x0000000003006000-memory.dmp

        memory/1620-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/1620-1-0x0000000000720000-0x0000000000726000-memory.dmp

        memory/1620-2-0x0000000008000000-0x0000000008022000-memory.dmp

        memory/1620-3-0x0000000002220000-0x0000000002226000-memory.dmp