Analysis

  • max time kernel
    150s
  • max time network
    153s
  • 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, 04:16

General

  • Target
    2026-08-01_3f3a78bdaafcf12b82d5dcc599e61194_cryptolocker_elex.exe
  • Size 47KB
  • Sample260802-ev3jsach59
  • SHA256 429c0cd8cd1a49658882fffbce9dc750b632993577081877d255aef51df9f843
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 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).

  • 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\2026-08-01_3f3a78bdaafcf12b82d5dcc599e61194_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-01_3f3a78bdaafcf12b82d5dcc599e61194_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5060
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3356

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        hasfj.exe

        • Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
        • Size 47KB
        • SHA256 f912ef08d715a20e7e41ce11df7459424ec0a32f444685a5a42787bf494f79a7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3356-17-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/3356-25-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/5060-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/5060-1-0x0000000002200000-0x0000000002206000-memory.dmp

        memory/5060-2-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/5060-3-0x0000000003000000-0x0000000003006000-memory.dmp