Analysis

  • max time kernel
    149s
  • max time network
    100s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    31/05/2026, 09:07

General

  • Target
    2026-05-31_d349eb58d6b3b3aa3dbee5dec127312a_coinminer_cryptolocker_elex.exe
  • Size 68KB
  • Sample260531-k3kltsfv8q
  • SHA256 4b207d034e20f08e0e8db390493b33afa99a66a1850a0ccc641bae501a6b24d8
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Custom signature
    Detection of CryptoLocker Variants 5 IoCs
  • Custom signature
    Detection of Cryptolocker Samples 5 IoCs
  • Custom signature
    UPX dump on OEP (original entry point) 5 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 5 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\2026-05-31_d349eb58d6b3b3aa3dbee5dec127312a_coinminer_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-31_d349eb58d6b3b3aa3dbee5dec127312a_coinminer_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2336
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2668

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        asih.exe

        • Path C:\Users\Admin\AppData\Local\Temp\asih.exe
        • Size 68KB
        • SHA256 79f96945a30c4a7a41689a658f1a78943894d126091b07976520270bb30f468a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2336-0-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/2336-1-0x0000000000504000-0x0000000000505000-memory.dmp

        memory/2336-2-0x00000000022D0000-0x00000000022D6000-memory.dmp

        memory/2336-3-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/2336-4-0x0000000002160000-0x0000000002166000-memory.dmp

        memory/2668-18-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/2668-20-0x00000000021F0000-0x00000000021F6000-memory.dmp

        memory/2668-26-0x0000000000500000-0x0000000000510000-memory.dmp