A real video file should be several megabytes or gigabytes. If the file is only a few kilobytes, it is likely a script or a shortcut.
The presence of both .mkv and .mp4 is redundant. In most operating systems, the "real" extension is the last one ( .mp4 ). The .mkv is likely part of the filename itself to trick users who expect a specific video container. honeym00n.mkv.mp4
Attackers often rename files like document.pdf.exe so that users with "Hide extensions for known file types" enabled in Windows only see document.pdf . While .mp4 is generally a safe media format, a file named honeym00n.mkv.mp4 might be a Trojan designed to exploit vulnerabilities in outdated media players or simply a renamed executable used in social engineering. A real video file should be several megabytes or gigabytes
The use of "00" instead of "oo" in "honeym00n" is a common naming convention in "warez" circles, P2P file sharing, or internet creepypasta culture. Common Contexts for This File In most operating systems, the "real" extension is
Right-click the file and check the "Type of file" in your system settings to confirm it is actually a video and not an application ( .exe , .scr , or .bat ).