Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    02/07/2026, 12:42

General

  • Target
    2026-07-02_f094c8bf37070a112fcf850a26680d2a_cryptolocker_elex.exe
  • Size 53KB
  • Sample260702-pxq9msgx8m
  • SHA256 a7a5cada86ee1e7eca4906c3d03f97766a2de6ce8d51af51460235adfd8cb01a
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Custom signature
    Detection of CryptoLocker Variants 1 IoCs
  • Custom signature
    Detection of Cryptolocker Samples 1 IoCs
  • Checks computer location settings 2 TTPs 1 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\2026-07-02_f094c8bf37070a112fcf850a26680d2a_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-02_f094c8bf37070a112fcf850a26680d2a_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4012
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      • Modifies trusted root certificate store through registry
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:4724

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 53KB
        • SHA256 a651f0b2cc3414e17e1637c0fdeb5ef9e01331569408b11a4601ef66995d3bb6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4012-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

        memory/4012-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

        memory/4012-2-0x00000000005D0000-0x00000000005D6000-memory.dmp

        memory/4724-17-0x00000000006B0000-0x00000000006B6000-memory.dmp

        memory/4724-18-0x00000000006D0000-0x00000000006D6000-memory.dmp