If the owner/operator is in a country in which you can file a claim against then it doesnt' matter if it's hosted in a country you can't touch.
For example if someone lives in the usa and they setup a business with offshore hosting, they are only protected if there isn't any way to track them down. If you can prove that the website is owned by a US citizen then you can still file a lawsuit. The court has no jurisdiction to force an overseas hosting company or registrar to do anything, but they can force the US owner to do something.
If the individual used fake information to set everything up then there isn't much that can be done, but if you can track down who the actual owner is then it would be worth discussing the matter with a lawyer. If you do know who the owner is then a consultation with a lawyer is the best way to find out what course of action can be pursued. Even if you can do something, you'll also need to have the financial resources available to pursue it.