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Analysis

  • max time kernel
    153s
  • max time network
    57s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03/10/2022, 16:24

General

  • Target

    6fdfef4ca2b316e030da81880aed3ccc97878912573de9d57bed40f3820050ee.exe

  • Size

    304KB

  • MD5

    277bbb851a5d3de7e7984dec525546aa

  • SHA1

    e000b56409c1fe80e8d468f01971092ad154b568

  • SHA256

    6fdfef4ca2b316e030da81880aed3ccc97878912573de9d57bed40f3820050ee

  • SHA512

    b5c176f9c883d4358c6fcb7f3b7cda1644a67eb0a290c4b09f4aa430eebf76450c8b31c20f9a9acf68f16f73b31b7679022a2733d910f078ed8d35981dce18f3

  • SSDEEP

    3072:A8B9/WRVjFBbVJsnCRcq3xo8ozYH/LSsB4pAFNnYwo7A3HdYQCASCPepFq:A8BJWDfsnHIIz9AFNnjNrCAfPepF

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 29 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6fdfef4ca2b316e030da81880aed3ccc97878912573de9d57bed40f3820050ee.exe
    "C:\Users\Admin\AppData\Local\Temp\6fdfef4ca2b316e030da81880aed3ccc97878912573de9d57bed40f3820050ee.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Users\Admin\zuomeun.exe
      "C:\Users\Admin\zuomeun.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:1756

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\zuomeun.exe

    Filesize

    304KB

    MD5

    277bbb851a5d3de7e7984dec525546aa

    SHA1

    e000b56409c1fe80e8d468f01971092ad154b568

    SHA256

    6fdfef4ca2b316e030da81880aed3ccc97878912573de9d57bed40f3820050ee

    SHA512

    b5c176f9c883d4358c6fcb7f3b7cda1644a67eb0a290c4b09f4aa430eebf76450c8b31c20f9a9acf68f16f73b31b7679022a2733d910f078ed8d35981dce18f3

  • C:\Users\Admin\zuomeun.exe

    Filesize

    304KB

    MD5

    277bbb851a5d3de7e7984dec525546aa

    SHA1

    e000b56409c1fe80e8d468f01971092ad154b568

    SHA256

    6fdfef4ca2b316e030da81880aed3ccc97878912573de9d57bed40f3820050ee

    SHA512

    b5c176f9c883d4358c6fcb7f3b7cda1644a67eb0a290c4b09f4aa430eebf76450c8b31c20f9a9acf68f16f73b31b7679022a2733d910f078ed8d35981dce18f3

  • \Users\Admin\zuomeun.exe

    Filesize

    304KB

    MD5

    277bbb851a5d3de7e7984dec525546aa

    SHA1

    e000b56409c1fe80e8d468f01971092ad154b568

    SHA256

    6fdfef4ca2b316e030da81880aed3ccc97878912573de9d57bed40f3820050ee

    SHA512

    b5c176f9c883d4358c6fcb7f3b7cda1644a67eb0a290c4b09f4aa430eebf76450c8b31c20f9a9acf68f16f73b31b7679022a2733d910f078ed8d35981dce18f3

  • \Users\Admin\zuomeun.exe

    Filesize

    304KB

    MD5

    277bbb851a5d3de7e7984dec525546aa

    SHA1

    e000b56409c1fe80e8d468f01971092ad154b568

    SHA256

    6fdfef4ca2b316e030da81880aed3ccc97878912573de9d57bed40f3820050ee

    SHA512

    b5c176f9c883d4358c6fcb7f3b7cda1644a67eb0a290c4b09f4aa430eebf76450c8b31c20f9a9acf68f16f73b31b7679022a2733d910f078ed8d35981dce18f3

  • memory/2024-56-0x0000000075F81000-0x0000000075F83000-memory.dmp

    Filesize

    8KB

  • memory/2024-65-0x0000000074C11000-0x0000000074C13000-memory.dmp

    Filesize

    8KB