Elliptic said that more than 5,500 digital wallets were hit by the hackers, who the firm said were part of the North Korean cybercrime gang often called Lazarus.
Check Point, a cybersecurity software company, identified a group of Chinese hackers as responsible for integrating malicious code into router software.
The hacker group has been responsible for cyber attacks on websites across a variety of Israeli sectors in the past couple of months.
The new malware allows hackers to steal data from Telegram and take screenshots and record sound.
The Iranian attacks were likely carried out as retaliation against cyberattacks that targeted ports, trains and gas stations in Iran.
Israeli institutions have been the victims of a slew of hacking attacks in recent weeks.
A report was able to identify a handful of victims whose iPhones had been hacked using surveillance software developed by Israeli company QuaDream.