The 20 billion euros, all in 100 euro notes, is being stored at a heavily guarded depot.
It was flown to Moscow's Sheremetyevo Airport from Frankfurt with no recipient.
According to the Mirror, a security source said it could also be mafia or corrupt officials' dirty money.
Documents reveal that a man name Farzin Motlagh, 45, was the sender of the cash, but has yet not claimed it.
The Iranian is reportedly wanted internationally on suspicion of fraud.
--ANI (Posted on 30-09-2013)