According to Hollywood Reporter, the $250,000 would be a show of good faith for extending the group's initial deadline for a ransom payment.
"We are willing to commit to making a bug bounty payment of $250,000 to you as soon as we can establish the necessary account and acquire Bitcoin", the HBO executive's email reportedly stated.
HBO did not immediately respond to a Reuters request for comment.
A person close to the investigation confirmed the authenticity of the email, but said it was an attempt to buy time and assess the situation. "In the spirit of professional cooperation, we are asking you to extend your deadline for one week". "That's a very, very small amount in these kinds of negotiations".
The offer apparently failed to satisfy the attackers who have demanded a ransom of millions of dollars and are threatening to release more files from what is claimed to be a massive data breach.
Variety earlier reported details about the $250,000 offer.
HBO has said it was working with forensic experts and law enforcement in response to the attack.
When Netflix refused to pay, the hacker posted a torrent for the episodes to The Pirate Bay.
But paying ransoms to hackers can be risky because it shows that being a bad-guy hacker is a good business, said cybersecurity expert Oren Falkowitz, chief executive of Redwood City, California-based Area 1 Security.
"The reason they got in this scenario is they didn't have the right pre-emption strategy", Falkowitz said.style="text-align: center;"