Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    12-02-2024 20:04

General

  • Target

    2024-02-12_7c447cd0a46c75b623f1963731fa209e_cryptolocker.exe

  • Size

    33KB

  • MD5

    7c447cd0a46c75b623f1963731fa209e

  • SHA1

    3b21c8cd424b1aa1d2ff4bb6b572f32c34ed9202

  • SHA256

    68306f92dfadd468f708821b057f7c0e047c912b6cfa3b16d5ca4a41dbc3cdad

  • SHA512

    f0ea830eb3e562df6d23644dafa52b71596d03d582ff66c8a240f32dd3ea933d26eeee9b628ae4dbe240696697a9d7746c6f6e528bfebddf8b73ededa9c22aac

  • SSDEEP

    384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunexRlSrxVfdsHYUpZ:bA74zYcgT/Ekd0ryfjPIunYw16lZ

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 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\2024-02-12_7c447cd0a46c75b623f1963731fa209e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-12_7c447cd0a46c75b623f1963731fa209e_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1652
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:3064

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\hasfj.exe

    Filesize

    34KB

    MD5

    a80f093650cc894df65f2802ac8ec3e1

    SHA1

    7956bb9bbaa8dc4945e923d5900c6c7617e7f831

    SHA256

    0a7da515283fa4915af665ad396f25c4328ac35449347b55daf77663bce0e0c1

    SHA512

    dcb6971bf48d9327e289e06d7fadbac1ddf8fc928297e99df78709ffcf6b44955e911b1c76e2cff0b37a10cbe5c18b2d376c88b58a2f02befdc665738c0237b7

  • memory/1652-0-0x00000000003B0000-0x00000000003B6000-memory.dmp

    Filesize

    24KB

  • memory/1652-1-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/1652-2-0x00000000003B0000-0x00000000003B6000-memory.dmp

    Filesize

    24KB

  • memory/3064-21-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3064-15-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB