Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    19/04/2026, 04:33

General

  • Target
    2026-04-19_31d58928b22367f08011d55896127849_cryptolocker_elex.exe
  • Size 41KB
  • Sample260419-e6l16shw61
  • SHA256 7c9b564f78a63acad6e175beec53f89574d4f1d55082c5b49ec0727295451398
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • 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\2026-04-19_31d58928b22367f08011d55896127849_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-19_31d58928b22367f08011d55896127849_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3028
    • 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:4608

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 41KB
        • SHA256 855177f126561340dd8544ac1a8987fdc41e0acf57b4436e6682c8252f6147ea
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3028-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/3028-1-0x00000000022F0000-0x00000000022F6000-memory.dmp

        memory/3028-2-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/3028-4-0x0000000002320000-0x0000000002326000-memory.dmp

        memory/3028-17-0x0000000002350000-0x00000000023CA000-memory.dmp

        memory/4608-18-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4608-20-0x0000000002EF0000-0x0000000002EF6000-memory.dmp

        memory/4608-26-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4608-27-0x00000000022E0000-0x000000000235A000-memory.dmp