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
    10/09/2026, 03:43

General

  • Target
    2026-09-08_a2cad17f5369487459bdaa4f7dfabaa6_cryptolocker_elex.exe
  • Size 29KB
  • Sample260910-d9775swena
  • SHA256 687b82b94ced84ea6021d6b203da74d5cd75df97e4e7193600af4165e10bf894
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Custom signature
    Detection of CryptoLocker Variants 2 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\2026-09-08_a2cad17f5369487459bdaa4f7dfabaa6_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-08_a2cad17f5369487459bdaa4f7dfabaa6_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1592
    • 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:3828

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 30KB
        • SHA256 437d97fae1381a3fc309cecc8a82a0b323db0fd6d2f30eedbe9db0af5bdb37ff
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1592-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/1592-1-0x0000000002140000-0x0000000002146000-memory.dmp

        memory/1592-2-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/1592-3-0x00000000022F0000-0x00000000022F6000-memory.dmp

        memory/1592-17-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/3828-19-0x0000000003000000-0x0000000003006000-memory.dmp

        memory/3828-25-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/3828-26-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/3828-27-0x0000000008000000-0x0000000008009000-memory.dmp