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Analysis

  • max time kernel
    118s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    05/06/2024, 03:23

General

  • Target

    2024-06-05_0494da7a581072c5d49301c513b2f5ad_cryptolocker.exe

  • Size

    34KB

  • MD5

    0494da7a581072c5d49301c513b2f5ad

  • SHA1

    74f22ff25ed8570159c9736a51d061afd2e4aa9a

  • SHA256

    692d8b1d8decc77015a64c60f4166476058da12e7d9aa58dd39b33b565188b17

  • SHA512

    0cf6f34cdd2f9bcec713be9a7e2caa5a1df4e43b00a06cdbf81757cb5fac522cfa8e15eafad5abbd679718499abf54ce9728d7899d26ebdaa0bfd5082a63e277

  • SSDEEP

    768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5jd+aV:bxNrC7kYo1Fxf2rYPsu

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).

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-05_0494da7a581072c5d49301c513b2f5ad_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-05_0494da7a581072c5d49301c513b2f5ad_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2240
    • C:\Users\Admin\AppData\Local\Temp\pissa.exe
      "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:2980

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    34KB

    MD5

    32bb91f1c989e0faa986f3f7853d7c95

    SHA1

    d7b9d7c23fdb7b9d9f142773b46e2e70a0af1e7f

    SHA256

    550ec5209051dd17ecb25d7a835cbf4661e4496b7c4563d081016148c447c574

    SHA512

    87b2acb4b29a7fefce4ae642953d84d68f5c2323d787d545020fa003d33301b0f6521aeaaf372a81823bf483584c37cb30ba56f159b8a6aad4adc2945e9f90d3

  • memory/2240-0-0x00000000002A0000-0x00000000002A6000-memory.dmp

    Filesize

    24KB

  • memory/2240-8-0x00000000002A0000-0x00000000002A6000-memory.dmp

    Filesize

    24KB

  • memory/2240-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/2980-22-0x0000000000380000-0x0000000000386000-memory.dmp

    Filesize

    24KB

  • memory/2980-15-0x0000000000390000-0x0000000000396000-memory.dmp

    Filesize

    24KB