Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/06/2024, 04:31

General

  • Target
    2024-06-13_9339d9032146b0342186f7939347698d_cryptolocker.exe
  • Size 69KB
  • Sample240613-e5ekpsxgpm
  • SHA256 f8ba9adf92dd0dfd58386fa71b5c536d112359e31aaaa8f3890a9762ca98f837
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 4 IoCs
  • Detects executables built or packed with MPress PE compressor 4 IoCs
  • 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).

  • Modifies system certificate store 2 TTPs 7 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-13_9339d9032146b0342186f7939347698d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-13_9339d9032146b0342186f7939347698d_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3012
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:4248

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 69KB
        • SHA256 60a2be8af458c71c877fac2cab3954ded9ec06cb81988253f71e38227b9875f3
        • MD5 SHA1 SHA512 SSDEEP

        misids.exe

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

        memory/3012-0-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/3012-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

        memory/3012-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

        memory/3012-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

        memory/3012-16-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/4248-19-0x0000000000510000-0x0000000000516000-memory.dmp

        memory/4248-25-0x00000000004E0000-0x00000000004E6000-memory.dmp

        memory/4248-48-0x0000000000500000-0x000000000050F000-memory.dmp