Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    02/08/2026, 12:13

General

  • Target
    2026-08-02_0dad8ecd245ee3429ca43582f76755f3_cryptolocker_elex.exe
  • Size 55KB
  • Sample260802-pdzfxaserf
  • SHA256 21aa8344a6872400487b9d75cc6837700aed4fbf3d6423cfae6dd93314b6bb2e
  • 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\2026-08-02_0dad8ecd245ee3429ca43582f76755f3_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-02_0dad8ecd245ee3429ca43582f76755f3_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3528
    • 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:2192

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 55KB
        • SHA256 1e43ef4b7f53cb950d9d6c5f4bc23e27ea9debb5d1b514ce93309595fcc117e4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2192-18-0x00000000004E0000-0x00000000004E6000-memory.dmp

        memory/2192-17-0x00000000004C0000-0x00000000004C6000-memory.dmp

        memory/3528-0-0x0000000000660000-0x0000000000666000-memory.dmp

        memory/3528-1-0x0000000000660000-0x0000000000666000-memory.dmp

        memory/3528-2-0x00000000020E0000-0x00000000020E6000-memory.dmp