The scammer baits the player into buying three overpriced modules to try to sell to the extremely overpriced buy order. Chances are that the buy order cannot be filled, and would sell the modules for less than what is paid.
[Scam Report] - Station Trading Scam
Labels: Scam Report
Similar to the officer mod market scam, this one alleviates the need for a contract to scam the player into buying the modules. By taking advantage of station traders that do not look at the price history, scammers will attempt to sell modules at an increased price, while having an overpriced buy order up. It's most likely that the buy order doesn't have the money to cover it by using the skill Margin Trading, but needless to say it's best to check the Price History to avoid this scam. You can see from the screenshot below what this scam looks like. Keep in mind the average price for the module is around 173 million.