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
    05/09/2026, 08:41

General

  • Target
    2026-09-04_65be0224d7b7b102f60993f09ec5c4df_cryptolocker_elex.exe
  • Size 43KB
  • Sample260905-kll4bsch52
  • SHA256 5551ec59f387b1ea4ec518fb368d50600ed87a7d98166ed92258b51c52d4b9c8
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 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\2026-09-04_65be0224d7b7b102f60993f09ec5c4df_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-04_65be0224d7b7b102f60993f09ec5c4df_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4340
    • 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:4572

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        hasfj.exe

        • Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
        • Size 43KB
        • SHA256 3e720e5d695b13e98089bd689412bda73a89f3b9316b4692c5edf793ff6cf0fb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4340-0-0x0000000008000000-0x000000000800D000-memory.dmp

        memory/4340-1-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/4340-2-0x0000000002E90000-0x0000000002E96000-memory.dmp

        memory/4340-3-0x0000000008000000-0x000000000800D000-memory.dmp

        memory/4340-4-0x0000000003140000-0x0000000003146000-memory.dmp

        memory/4572-18-0x0000000008000000-0x000000000800D000-memory.dmp

        memory/4572-26-0x0000000008000000-0x000000000800D000-memory.dmp