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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    15/04/2024, 11:41

General

  • Target

    2024-04-15_5c46af4640394a086fab8153edc0e5a9_cryptolocker.exe

  • Size

    30KB

  • MD5

    5c46af4640394a086fab8153edc0e5a9

  • SHA1

    a7eb821436b03767b6201d19a2412871e6723c83

  • SHA256

    0f3af209637c197bd42a75032936773f3ef6b67f699ded4779dde25131d6724a

  • SHA512

    4c5e66b719b0558de23ff08aa10ff2ca25df739423f8ebbbb57600a4c81017078a33eafa8062960e23e9b126429d348e9ab890de1b5c0cf8305ca716d0f40fc3

  • SSDEEP

    384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGB:bG74zYcgT/Ekd0ryfjo

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 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\2024-04-15_5c46af4640394a086fab8153edc0e5a9_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-15_5c46af4640394a086fab8153edc0e5a9_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2752
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:1728

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    30KB

    MD5

    bbb6ab80a524a164ff81555c441e97af

    SHA1

    296f033ae0a944e110e0f4d9b06d96b2b9b8ac4f

    SHA256

    0e761df982d2e65573f3d1cd9b6910c7d8ec8cb5c91d273b3ed79b67a14e4a6a

    SHA512

    d682a0a42dd1926c62233c4e3ec1f25f2b06cc4f15449af30d3441cb7de46e72ba7aaeaf1f3126d21adcdde5e737f637efc3d69cbb59f0e7cfc337336e9e72b2

  • memory/1728-16-0x0000000008000000-0x000000000800A000-memory.dmp

    Filesize

    40KB

  • memory/1728-18-0x0000000000690000-0x0000000000696000-memory.dmp

    Filesize

    24KB

  • memory/1728-25-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB

  • memory/1728-26-0x0000000008000000-0x000000000800A000-memory.dmp

    Filesize

    40KB

  • memory/2752-0-0x0000000008000000-0x000000000800A000-memory.dmp

    Filesize

    40KB

  • memory/2752-1-0x0000000000470000-0x0000000000476000-memory.dmp

    Filesize

    24KB

  • memory/2752-2-0x0000000000480000-0x0000000000486000-memory.dmp

    Filesize

    24KB

  • memory/2752-9-0x0000000000470000-0x0000000000476000-memory.dmp

    Filesize

    24KB

  • memory/2752-15-0x0000000008000000-0x000000000800A000-memory.dmp

    Filesize

    40KB