Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2024, 04:28

General

  • Target
    2024-09-19_6e671544f008ddab6c081af30bed1d02_cryptolocker.exe
  • Size 76KB
  • Sample240919-e3z4ma1cme
  • SHA256 b5df78f69ebeaf24a3f2c46474f20b3690d260ec4899434b16bd52cc796e271d
  • 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\2024-09-19_6e671544f008ddab6c081af30bed1d02_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-19_6e671544f008ddab6c081af30bed1d02_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:808
    • 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:1900

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 77KB
        • SHA256 22bda3a3761fa227e19082a911ab3fdee7da2c52e885b44f2046505602d780f6
        • MD5 SHA1 SHA512 SSDEEP

        memory/808-0-0x00000000006B0000-0x00000000006B6000-memory.dmp

        memory/808-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

        memory/808-2-0x00000000006D0000-0x00000000006D6000-memory.dmp

        memory/1900-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

        memory/1900-23-0x00000000004D0000-0x00000000004D6000-memory.dmp