Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    07/05/2026, 02:49

General

  • Target
    2026-05-07_bf65d694595a0348b373794a47c1ddfa_cryptolocker_elex.exe
  • Size 48KB
  • Sample260507-dbcctaat8p
  • SHA256 b4c304e0e387dbf3020859f375ad679ae7c7bc41bee47ccc2616e87b09b2336c
  • 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_bf65d694595a0348b373794a47c1ddfa_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-07_bf65d694595a0348b373794a47c1ddfa_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3276
    • 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:2876

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 48KB
        • SHA256 40aaf66856cdc124a7cb2cd21b23166332e52c6f4f9c1a1a30a43fb8529feb79
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2876-18-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/2876-20-0x0000000002E70000-0x0000000002E76000-memory.dmp

        memory/2876-26-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/2876-27-0x0000000002E80000-0x0000000002ECA000-memory.dmp

        memory/3276-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/3276-1-0x0000000002200000-0x0000000002206000-memory.dmp

        memory/3276-2-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/3276-3-0x0000000002230000-0x0000000002236000-memory.dmp

        memory/3276-17-0x0000000002EC0000-0x0000000002F0A000-memory.dmp