Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/07/2026, 08:49

General

  • Target
    2026-07-31_e11f8712ac4e65ce02e0fc67dc92659b_cryptolocker_elex.exe
  • Size 46KB
  • Sample260731-krge2aydrb
  • SHA256 b3fd6c67a2bdd864d7cca63919ba2c4e5229f54ea279dc47750691b997470b96
  • 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\2026-07-31_e11f8712ac4e65ce02e0fc67dc92659b_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-31_e11f8712ac4e65ce02e0fc67dc92659b_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5248
    • 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:1668

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        hasfj.exe

        • Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
        • Size 47KB
        • SHA256 01792c61e82fffc95608ee6ade716aa167e2157eae9b41b836a7bb51d367efa7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1668-18-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/1668-20-0x00000000021B0000-0x00000000021B6000-memory.dmp

        memory/1668-26-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/5248-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/5248-1-0x0000000002290000-0x0000000002296000-memory.dmp

        memory/5248-2-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/5248-3-0x00000000022C0000-0x00000000022C6000-memory.dmp