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Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    31/05/2024, 06:32

General

  • Target

    2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe

  • Size

    36KB

  • MD5

    5b6e235617031ec91033a00df7cab708

  • SHA1

    6004478f3e2c9c672893a232d6ce01ab59e76000

  • SHA256

    e4e7cef0b0ee110aefa479693d582a0e8736dd3cd1b1f7441a08bf0ad631daf7

  • SHA512

    02318cfecceed82eaed6ce69d1c97aaf1da18d5b22cf5bbf320a90fb6bc3c2367b2d4ffb4196e103c3f73a9b6ca6bb063906a2c76191147b95797fc1d451ba71

  • SSDEEP

    384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0qZvvOw:btB9g/WItCSsAGjX7r3BTZvvOw

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 UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1008
    • C:\Users\Admin\AppData\Local\Temp\gewos.exe
      "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of UnmapMainImage
      PID:2556

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    36KB

    MD5

    81adc6de441fe6478427f0fd334a6432

    SHA1

    d054051368dc9dd538438219f361190c6958a1cd

    SHA256

    d7c75f54575102bedc23de256fd9efc55f65978a2723d7585db346609174e636

    SHA512

    fa9a2be45b741fd7a3a0120f5fa734ecb2df02afd1227b95a00da6bcb3591c175f0407aeac6f2b427bb8980342aefae57bcd3112eba2941d341fdd51171177ea

  • memory/1008-0-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB

  • memory/1008-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/1008-8-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB

  • memory/2556-23-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

    Filesize

    24KB