Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    25/05/2022, 22:51

General

  • Target
    youtube.dll
  • Size 214KB
  • Sample220525-2sw1jsaefr
  • SHA256 d21d616f6052e8b62292fcc6d9fd9ee2a3b549c59ca76aa8ef5a96cd163512ac
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Bazar Loader

    Detected loader normally used to deploy BazarBackdoor malware.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\youtube.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2788
    • C:\Windows\system32\cmd.exe
      cmd /c timeout /t 8 /nobreak > NUL & "C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\youtube.dll", #1 ZF3bI6aD VI0rr2aG & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3616
      • C:\Windows\system32\timeout.exe
        timeout /t 8 /nobreak
        3⤵
        • Delays execution with timeout.exe
        PID:212
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\youtube.dll", #1 ZF3bI6aD VI0rr2aG
        3⤵
          PID:4040

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          memory/2788-130-0x000002BEC43A0000-0x000002BEC43C0000-memory.dmp

          memory/4040-134-0x0000026B58A70000-0x0000026B58A90000-memory.dmp