The US sanctioned the officials for involvement in the "abduction, detention, and probable death of former FBI Special Agent Robert A. Levinson."
The Popular Resistance Committees is Gaza's third-largest terror group, after Hamas and the Palestinian Islamic Jihad.
It was Washington's fourth round of sanctions on Iran's oil sales since President Donald Trump said in February he was re-imposing a "maximum pressure" campaign.
The gang was responsible for the January 2024 Israel Stockholm embassy attack, and its leader, Rawa Majid, maintains links with Iran's global terror network, according to both Mossad and Washington.
Russia holds around a fifth of Ukraine's territory and its forces are steadily advancing in the eastern Donetsk region.
"We are reviewing all existing sanctions waivers that provide Iran any degree of economic or financial relief," State Department spokesperson Tammy Bruce said.
John Bolton, the lead negotiator for the initiative when it was formed, told Reuters "it would be fully justified" to use the initiative to slow down Iran oil exports.
The sanctions were being done to "stem the flow of revenue the regime uses to fund destabilizing activities."
Gal Haimovich, a 49-year-old Israeli national, was sentenced for using his international freight forwarding company to violate US export control laws.
Tehran is wary of Trump's new sanctions, and it risks seeing its economy be battered - but does not want to be seen to buckle.