Relatively new and fairly simple, the Amadey botnet is available for hire for cybercriminals. One of the threat groups to have used the botnet is TA505, which leveraged it to distribute the FlawedAmmy RAT and email stealers.
The phishing campaign, Cofense explains, employs emails purporting to be from the Internal Revenue Service (IRS) and claiming that the recipient is eligible for a tax refund. The message also presents a “one time username and password” and urges the user to click the “Login Right Here” button.