Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/10/2024, 05:15

General

  • Target
    2024-10-10_a7c71bd97020a393f7cf0a08c8ab402d_cryptolocker.exe
  • Size 78KB
  • Sample241010-fx1cwaybjd
  • SHA256 4329dcae77f41cc201cf575768e1e398e2f33c2dd68f971f5b16ceb8cc8684f5
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-10_a7c71bd97020a393f7cf0a08c8ab402d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-10_a7c71bd97020a393f7cf0a08c8ab402d_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3936
    • 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:2164

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        asih.exe

        • Path C:\Users\Admin\AppData\Local\Temp\asih.exe
        • Size 78KB
        • SHA256 f53ccce910012ac2fcc84ba49e560fe8d1cb6446866761ea3dc12bd60aa05422
        • MD5 SHA1 SHA512 SSDEEP

        memory/2164-17-0x0000000000490000-0x0000000000496000-memory.dmp

        memory/2164-18-0x00000000005E0000-0x00000000005E6000-memory.dmp

        memory/3936-0-0x00000000005B0000-0x00000000005B6000-memory.dmp

        memory/3936-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

        memory/3936-2-0x00000000005D0000-0x00000000005D6000-memory.dmp