I think it is quite clear that Satan was very aware of Job beforehand. God had just asked Satan where he came from, and Satan answered from going to and fro in the earth, and walking up and down in it. At this point God asked Satan if he had considered Job who was perfect and hated evil. So, I think this passage strongly implies Satan already knew about Job before he came before God.So what do you do about Job, "Have you considered my servant Job?"
The contrive issue is not a permissible act and again, the differentiation between permisive and command is slight in this instance as I noted before. However, God does give Satan "ideas" in the text of Job. Was it evil for God to suggest Job? No!
I think there was competition and accusation from Satan against God happening here. Satan seems to delight that he had plunged all men into sin. He seems to imply that men loved him more than God. Why do I believe this? Because God responded there was still ONE MAN, Job, who loved and trusted God.
What was Satan's response? He asked God if Job feared God for naught. In effect, Satan was accusing God of buying Job's affection, but he was also accusing Job of loving God ONLY because God had put a hedge around him and blessed him.
This was a wicked accusation against both God and Job. Satan implied God was no better than himself and must bribe people to love him, and his people only loved him because they had been bribed. THIS is why God allowed Satan to afflict Job, to prove Satan wrong. And God did prove Satan wrong, in that Job said even if God should kill him, yet would he trust God.
I don't see anything suggesting God caused Satan's wicked thoughts here.