"The group responsible for writing the BadBunny malware don't seem to have much confidence in it spreading as they have sent it directly to our labs. The hackers have written plenty of StarBasic malware in the past, but the most 'in the wild' this one is likely to get is by displaying a picture of a furvert in the woods," said Graham Cluley, senior technology consultant for Sophos.
Due to this and the nature of the code itself, it is unclear whether it would have even spread in the wild. A proof of concept is just that, and not an indication of any particular issues. What security flaws have been exploited aren't made clear, so hopefully Sophos and other security companies will release information on the scope of this. Either way, it is certainly not something to be concerned about, though it is interesting.