Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/07/2026, 07:20

General

  • Target
    2026-07-31_7b9eb033e2b4c101f2adbe2e58165ab9_coinminer_cryptolocker_elex.exe
  • Size 36KB
  • Sample260731-h6d74scl2s
  • SHA256 f94ceee30b88a6be4f6c1c2f7fc3a81cd31304d08801fd068dc7a371e00891ef
  • 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\2026-07-31_7b9eb033e2b4c101f2adbe2e58165ab9_coinminer_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-31_7b9eb033e2b4c101f2adbe2e58165ab9_coinminer_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2816
    • 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:4452

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        lossy.exe

        • Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
        • Size 36KB
        • SHA256 5ce3edb903d0ae3ea2775fb05ce159e2a96075790566f3e41f44ddbe6d62f628
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2816-0-0x0000000008000000-0x000000000800E000-memory.dmp

        memory/2816-1-0x0000000000710000-0x0000000000716000-memory.dmp

        memory/2816-2-0x0000000000710000-0x0000000000716000-memory.dmp

        memory/2816-3-0x0000000000730000-0x0000000000736000-memory.dmp

        memory/2816-20-0x0000000008000000-0x000000000800E000-memory.dmp

        memory/4452-27-0x00000000020F0000-0x00000000020F6000-memory.dmp

        memory/4452-21-0x0000000002120000-0x0000000002126000-memory.dmp

        memory/4452-28-0x0000000008000000-0x000000000800E000-memory.dmp