Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    23/07/2026, 02:48

General

  • Target
    2026-07-23_54d3217992a559dc32173500fd37dfb6_cryptolocker_elex.exe
  • Size 97KB
  • Sample260723-dascmsfe73
  • SHA256 53e26238de1c21b58f41bb1b93fd7d24c22d2bbc646ec0f7636b99bff94bf8bb
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies trusted root certificate store through registry 1 TTPs 2 IoCs

    A root certificate was added, modified, or removed in the trusted certificate store registry paths.

  • 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.

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-23_54d3217992a559dc32173500fd37dfb6_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-23_54d3217992a559dc32173500fd37dfb6_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3840
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies trusted root certificate store through registry
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:4976

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 97KB
        • SHA256 15cfa1cdeb6f7a2c78f62aad905edb3cace403d6a720c1bfc2364d939b977f73
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3840-0-0x00000000004C0000-0x00000000004C6000-memory.dmp

        memory/3840-1-0x00000000004C0000-0x00000000004C6000-memory.dmp

        memory/3840-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

        memory/4976-17-0x0000000000650000-0x0000000000656000-memory.dmp

        memory/4976-18-0x0000000000670000-0x0000000000676000-memory.dmp