Complete Newbie, Need help for decrypting a video

[LostAsFuck]

Hi All! I don't know much about computer software or video decrypting. I have a few videos I need to download, and I have only one day. So I have spent the last few hours trying to learn about how to download videos. I have read the guide about cdm but I think it needs an Android device and I only have a Windows pc.
After searching the internet and this forum, I am still lost and I have gathered that I need keys to decrypt a video. I have no idea how to get keys, and I have been trying to find out. Also, as I said, I don't know much about all this, so I don't know or understand what is a key or a cdm or pssh or anything, just blindly following instructions.
So here's what I did. Played the video, pressed F12, went to Inspect, then Network and got the following video and audio links.
Video - https://d2148dkxdf27z.cloudfront.net/media/0j1YWfonOsfyn/f761dd5d/video_7543_720_378.mp4
Audio - https://d2148dkxdf27z.cloudfront.net/media/0j1YWfonOsfyn/f761dd5d/audio_4942_0_128.mp4
I downloaded the files by right clicking and selecting 'Save video as' and saved them to my computer. What should be my next steps? I have also downloaded Bento4.
Thank you.

[Karoolus]

What's the video link?

[CrymanChen]

Url?

[LostAsFuck]

The original video link is via a login. I mean one needs to login to access the video.
The company on which these course videos are present, they are shutting down and tomorrow is the last day.

[Karoolus]

https://forum.videohelp.com/threads/404993-Please-ONLY-ask-for-help-videos-that-everyo...ere-is-my-post

[LostAsFuck]

Yeah, I saw that and realized after I submitted my post. I had initially thought the link I posted is the required link.
It's fine though because I have given up on the videos now.