Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250502-en
  • resource tags

    arch:x64arch:x86image:win11-20250502-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    07/05/2026, 08:50

General

  • Target
    2026-05-07_bf46ac3fcf27cf8227c39c5fd5bef40c_cryptolocker_elex.exe
  • Size 48KB
  • Sample260507-krpreaat2w
  • SHA256 aa0495e2f43713d702d723fe0603eca74139a47d2a0f217b7f2465e75053aa2f
  • 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\2026-05-07_bf46ac3fcf27cf8227c39c5fd5bef40c_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-07_bf46ac3fcf27cf8227c39c5fd5bef40c_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:6124
    • 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:3116

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        hasfj.exe

        • Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
        • Size 49KB
        • SHA256 93b43492eac76d45d139d4f22dbfe2aab97a33ed8a89b1f2ebed7a7532bc3d9f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3116-18-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/3116-20-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/3116-21-0x0000000002E70000-0x0000000002E76000-memory.dmp

        memory/3116-27-0x0000000002F90000-0x0000000003012000-memory.dmp

        memory/6124-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/6124-1-0x00000000023A0000-0x00000000023A6000-memory.dmp

        memory/6124-2-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/6124-3-0x0000000002460000-0x0000000002466000-memory.dmp

        memory/6124-17-0x0000000002480000-0x0000000002502000-memory.dmp