Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    04/08/2026, 14:39

General

  • Target
    2026-08-04_a7eb6f146ddaf30be97d5f06a68c3204_cryptolocker_elex.exe
  • Size 46KB
  • Sample260804-r1cxjazthy
  • SHA256 ac09161ddf932a1851218075f5f63580a7c03c5138aa25ce7e6b08f63d4d28ff
  • 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\2026-08-04_a7eb6f146ddaf30be97d5f06a68c3204_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-04_a7eb6f146ddaf30be97d5f06a68c3204_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4480
    • 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:4680

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 46KB
        • SHA256 d1276c3d43aab3a35bc8cf804c4057e9116401e4f2515ec5a278db4351f530fb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4480-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/4480-1-0x0000000002150000-0x0000000002156000-memory.dmp

        memory/4480-3-0x0000000003140000-0x0000000003146000-memory.dmp

        memory/4480-2-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4680-17-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4680-24-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4680-19-0x0000000000720000-0x0000000000726000-memory.dmp