[Photo of The Dark Overlord / Marvel Movies]

Hackers calling themselves ‘The Dark Overlord’ apparently has stolen internal documents from WestPark Capital, a Californian investment bank, and their victim has so far refused "to play the cards the hackers have dealt."

“WestPark Capital is a 'full service investment banking and securities brokerage firm' whose CEO, Richard Rappaport, spat in our face after making our signature and quite frankly, handsome, business proposal and so our hand has been forced,” The Dark Overlord wrote on Pastebin on Sunday.

And so, accompanying that statement, the hacker or hackers published online just under 20 stolen files, including non-disclosure agreements, internal presentations, reports and contracts.  One of the companies that signed an agreement included in the dump confirmed the document’s legitimacy.

“We made a handsome proposal to Mr. Rappaport that would involve us withholding this news. However, Mr. Rappaport chose to not cooperate with us in what could have been a very clean and quiet business opportunity for himself,” a spokesperson for The Dark Overlord told Motherboard in an online chat.

The Dark Overlord first appeared in June, when they advertised a slew of alleged medical organization records on the dark web, before following up with 9 million supposed health care insurance details. The general strategy wasn't to actually sell the data, but to intimidate the victim into paying a ransom. In return, the hackers wouldn't release the company's records.

Although the spokesperson wouldn't explicitly say this was the same approach in this case, they did say that, “We are open and available for further communications with Mr. Rappaport if he chooses to mitigate what may be to come.” 

Rappaport's intentions are, at this point, unknown.