Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/08/2026, 09:10

General

  • Target
    2026-08-03_72c85809ef7608ee55b8961c68e929f0_coinminer_cryptolocker_elex.exe
  • Size 36KB
  • Sample260803-k49x4sfl21
  • SHA256 eef515c9c56946ededa5465a8a5fa23add873cd321cadc9d705f7e25b3896e25
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • UPX dump on OEP (original entry point) 4 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\2026-08-03_72c85809ef7608ee55b8961c68e929f0_coinminer_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-03_72c85809ef7608ee55b8961c68e929f0_coinminer_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4060
    • C:\Users\Admin\AppData\Local\Temp\lossy.exe
      "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:6140

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        lossy.exe

        • Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
        • Size 36KB
        • SHA256 7ba1627926c57025f86dc77fbeca149bf2bea59bb2ad06307e28f18797116b5f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4060-0-0x0000000008000000-0x000000000800E000-memory.dmp

        memory/4060-1-0x0000000002220000-0x0000000002226000-memory.dmp

        memory/4060-2-0x0000000002220000-0x0000000002226000-memory.dmp

        memory/4060-3-0x0000000002250000-0x0000000002256000-memory.dmp

        memory/4060-18-0x0000000008000000-0x000000000800E000-memory.dmp

        memory/6140-27-0x0000000002230000-0x0000000002236000-memory.dmp

        memory/6140-28-0x0000000008000000-0x000000000800E000-memory.dmp