Doesn't really seem to be any actual confirmation that this was actually a painting, and the source seems to be just 'some random person said it might be'. There was enough 'analysis' in the comments to make me question the paint theory (the blades, while appearing not to move, are aligned slightly differently with the landing pad rectangle at the end of the video compared to the start, which would be consistent with it being 3D and a moving camera: the smoke appears to 'wrap' around the blades, suggesting it is 3D: as well as a video of a similar strike on the same(?) type of helicopter resulting in barely any propeller movement or obvious structural damage that would be perceivable in IR from overhead, posted in this comment thread. So, it seems inconclusive, but I'm not fully convinced of the painting theory.

Unrelated though, I find it amazing that there is a capitalist news website that primarily focuses on the stock market and teaching you how to grow your stock portfolio and which companies to invest in, and it's called moneycontrol.com, truly beyond parody