ISIS is worlds richest Terrorist group with $450 million bank loot Members of the Islam State of Iraq and Shaam (ISIS) with senior commander Abu Waheeb The radical Islamist fighters sweeping through Iraq â€” with their sights set on Baghdad â€” knocked over a bank in Mosul this week, making off with around $450 million in cash, the city's mayor said. The Islamic State of Iraq and Syria was now said to be the world's richest terror group after plundering around $450 million from a bank in Mosul, in northern Iraq, this week. The radical Islamists surging through Iraq's heartland are flush with cash after looting a large bank in an oil-rich hub in the country's north, making off with nearly half a billion dollars, officials say.Fighters from the Islamic State of Iraq and Syria seized around $450 million from a large bank and plundered large stashes of gold bullion during their sweeping takeover of Mosul this week, the city's mayor, Athier Nujaifi, told NBC News. Though exact numbers were difficult to pin down, the stunning windfall appeared to make the Al Qaeda-inspired force the richest terror group in the world, NBC said. The dire conflict in Iraq escalated sharply Friday as the Sunni fighters overran two more towns in the eastern province of Diyala and continued their virtually uncontested march toward Baghdad.NBC News reported cab drivers in the capital were charging Iraqis as much as $100 to flee the city â€” an outrageous sum in a country where workers make between $5 and $10 a day, according to state department numbers. Meanwhile, ISIS's score in Mosul made its cash sums greater than those of several small nations, including Tonga and the Falkland Islands, the International Business Times reported, citing numbers from the blog Money Jihad.The Taliban was once thought to be the richest terror organization in the world, with somewhere between $70 million and $200 million in 2011, Money Jihad reported. During the Mosul occupation, the militants also freed as many as 1,000 inmates from a local prison, IBTimes reported. Fearing the beheadings, kidnappings and execution-style killings the group is known for, hundreds of thousands of Iraqis have fled their homes as the Islamic militants seized large swaths of northern Iraq and threatened to impose Sharia law in the cities they occupied.