Designate someone to act as the "disgruntled employee." Agree to deploy the ransomware but bring it in and analyze its hash and block its signature from execution.
Well I'm assuming that however the "disgruntled employee" is found is also available to the mole. So a company could presumably use this mechanism to both block this ransomware and find their criminally disgruntled employees at the same time.
I think this assumes the ransomware team contracts with two people from the same company. In this case if they still want in they could use two different software or methods to encrypt the data.
