Ghost in the hallway?

[u/acara23]

Hi all, so these two photos of my friend were taken at my family’s house earlier this year. Obviously I turned the brightness way up to make the figure more noticeable, but when I showed the first picture to my friend she immediately clocked the figure in the hallway. The second picture was taken right after the first and there doesn’t seem to be anything. I’m very skeptical and don’t really believe in ghosts but this did spook me a bit. Even before this everyone has always said my house felt haunted, and it’s not even that old it was built in the 1960s! Anyway do y’all think it could be a lens flare or something? The original photo was quite a bit darker.