This was posted without a source on Twitter a few days ago, but I think it might be older as it crops up in image searches on Yandex, but the results lead to pages where it's no longer featured. So I think it might just be an old hoax, perhaps with a kite.
The video shows a wider shot where the object seems to be a dot of light in the sky. Curiously the camera is not recording.
Here's one of the Yandex links, the sites all appear to be clickbait or worse (attempting to install malware), so I'm not posting links.
Anyone recognize it?