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Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    26/03/2024, 03:49

General

  • Target

    2024-03-26_871a0f81f19f9d5e72e77b07e97ee021_cryptolocker.exe

  • Size

    36KB

  • MD5

    871a0f81f19f9d5e72e77b07e97ee021

  • SHA1

    74945523e092a1dbbe10980c9db7e12db54a6b54

  • SHA256

    9a1e2d0017508ccfa752a33bede59b29520f0971e18d510b397ff1282acf108a

  • SHA512

    a888a6b5fa8ce2b4f01db0a4ccb5929ba40a46cbd7beb2f0e11a7741e924595df84406628f798305bbaadde38a67d16814b657fe3f3efd1054ceb4df4a3d2748

  • SSDEEP

    384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunIVpeNs23mAA6lmH:bA74zYcgT/Ekd0ryfjPIunqpeNswm9H

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\2024-03-26_871a0f81f19f9d5e72e77b07e97ee021_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-26_871a0f81f19f9d5e72e77b07e97ee021_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1804
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:1828

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    36KB

    MD5

    ed6fbf63a9f2d2835e1d493a57484205

    SHA1

    a8ff199c48042aab03fa1494f815cb3c73299ba5

    SHA256

    f0acf76094f8dc8b730a80eb2d2597ed875d855b7b61d47b8326fbe65810a48c

    SHA512

    5c16ef2019d19e318c36c70dc081ea90c42168897e5323854d39579847b1001a1b61c430c877fef1430602991a7b7f5badd28543a78684783a8a410e3022c095

  • memory/1804-0-0x00000000002A0000-0x00000000002A6000-memory.dmp

    Filesize

    24KB

  • memory/1804-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/1804-8-0x00000000002A0000-0x00000000002A6000-memory.dmp

    Filesize

    24KB

  • memory/1828-15-0x0000000000480000-0x0000000000486000-memory.dmp

    Filesize

    24KB

  • memory/1828-22-0x0000000000470000-0x0000000000476000-memory.dmp

    Filesize

    24KB