Analysis

  • max time kernel
    92s
  • max time network
    125s
  • 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, 03:35

General

  • Target
    2024-09-19_9d9fe7cae0cddf03850b680c8cf7dbbb_cryptolocker.exe
  • Size 72KB
  • Sample240919-d5cwfaygrn
  • SHA256 97957e6011592d490c0538bbad9aa97941c31c8c828777d218acd7e47ef98708
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • 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).

  • 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 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-19_9d9fe7cae0cddf03850b680c8cf7dbbb_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-19_9d9fe7cae0cddf03850b680c8cf7dbbb_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2472
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:4280

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        misid.exe

        • Path C:\Users\Admin\AppData\Local\Temp\misid.exe
        • Size 72KB
        • SHA256 138094a85c1c373b5d06e807c4d298061159143141f1be7747aa76e8d988414f
        • MD5 SHA1 SHA512 SSDEEP

        misids.exe

        • Path C:\Users\Admin\AppData\Local\Temp\misids.exe
        • Size 315B
        • SHA256 d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3
        • MD5 SHA1 SHA512

        memory/2472-0-0x00000000006D0000-0x00000000006D6000-memory.dmp

        memory/2472-1-0x00000000006D0000-0x00000000006D6000-memory.dmp

        memory/2472-2-0x0000000000700000-0x0000000000706000-memory.dmp

        memory/4280-17-0x0000000000610000-0x0000000000616000-memory.dmp

        memory/4280-18-0x0000000000650000-0x0000000000656000-memory.dmp