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
    20/08/2026, 15:38

General

  • Target
    2026-08-20_46d17faafcca67b5d353b79021de9e64_cryptolocker_elex.exe
  • Size 27KB
  • Sample260820-s23d9aec35
  • SHA256 df33fba10ee4db83496b0479817e5aa06931c515f4ddce1f5174009279258ee9
  • 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\2026-08-20_46d17faafcca67b5d353b79021de9e64_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-20_46d17faafcca67b5d353b79021de9e64_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1032
    • 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:2748

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 27KB
        • SHA256 891810ef2a9650d448db44f7839975e9a22befba0b5bfa8c7afac8ec021117af
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1032-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/1032-1-0x0000000000710000-0x0000000000716000-memory.dmp

        memory/1032-2-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/1032-3-0x0000000002260000-0x0000000002266000-memory.dmp

        memory/2748-18-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/2748-20-0x0000000002250000-0x0000000002256000-memory.dmp

        memory/2748-26-0x0000000008000000-0x0000000008009000-memory.dmp