Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    07/03/2024, 23:33

General

  • Target

    2024-03-07_8c2b760aeb4e7fb258a045b60b4d8152_cryptolocker.exe

  • Size

    38KB

  • MD5

    8c2b760aeb4e7fb258a045b60b4d8152

  • SHA1

    5c8607badfa9856ca9ea9ab2ef09b0f72384e90d

  • SHA256

    1911915ebbe4694fc6fd9001460e072ff9f9187bf9d15b4f5d8ce888114b237d

  • SHA512

    7e8005fd98f1a23295ee315b49222577e0b2154247fa34cbfb39015391c88ea7291384bfe65d380b242d5c727218f302761adadd55688bd2d0d8feaf90ffde03

  • SSDEEP

    384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8u5cZnfXsTV2:bgX4zYcgTEu6QOaryfjqDDw3sCu5mXqI

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\2024-03-07_8c2b760aeb4e7fb258a045b60b4d8152_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-07_8c2b760aeb4e7fb258a045b60b4d8152_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2832
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:3060

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    38KB

    MD5

    59185e301c20ce7d64683f2b654b9886

    SHA1

    fc975a489c3ce74cb45727110cbcd8951ad6b4ac

    SHA256

    2f6f5bc40d8c013add88bb97a7a796d65091cf39ce4ca3d502ab3c71dadebdbf

    SHA512

    48733dd322eafd064879c1418c51bde91b97a17e195d3bf7054f031fd7ce0cc86841169d78eeb59502f8df5a8d014bf72b5556cb468ddc9491ace106fa3b5015

  • memory/2832-0-0x0000000000210000-0x0000000000216000-memory.dmp

    Filesize

    24KB

  • memory/2832-1-0x00000000002F0000-0x00000000002F6000-memory.dmp

    Filesize

    24KB

  • memory/2832-8-0x0000000000210000-0x0000000000216000-memory.dmp

    Filesize

    24KB

  • memory/3060-15-0x0000000000350000-0x0000000000356000-memory.dmp

    Filesize

    24KB

  • memory/3060-17-0x0000000000330000-0x0000000000336000-memory.dmp

    Filesize

    24KB