Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    11/06/2024, 12:44

General

  • Target
    2024-06-11_0571ab48a9ef7a49b0e08d8278230da1_cryptolocker.exe
  • Size 70KB
  • Sample240611-pylesaxckb
  • SHA256 c815b78e689307e5dda812fe58fe6955bceaa877a36f505bcff734372731bf14
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 6 IoCs
  • Detection of Cryptolocker Samples 3 IoCs
  • Detects executables built or packed with MPress PE compressor 6 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-11_0571ab48a9ef7a49b0e08d8278230da1_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-11_0571ab48a9ef7a49b0e08d8278230da1_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2908
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:3060

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        misid.exe

        • Path \Users\Admin\AppData\Local\Temp\misid.exe
        • Size 70KB
        • SHA256 102e324cf08ed56f1a3dbd66aea73e80d58dfdcf41039ad6709807828e034823
        • MD5 SHA1 SHA512 SSDEEP

        memory/2908-0-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/2908-1-0x0000000000300000-0x0000000000306000-memory.dmp

        memory/2908-9-0x0000000000300000-0x0000000000306000-memory.dmp

        memory/2908-2-0x0000000000350000-0x0000000000356000-memory.dmp

        memory/2908-13-0x00000000022E0000-0x00000000022EF000-memory.dmp

        memory/2908-17-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/3060-18-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/3060-20-0x00000000004A0000-0x00000000004A6000-memory.dmp

        memory/3060-27-0x0000000000240000-0x0000000000246000-memory.dmp

        memory/3060-28-0x0000000000500000-0x000000000050F000-memory.dmp