Can you help me please to figure out which exchange website uses this wallet ?
It doesn't seem to be an address of any exchange. Take a look
at this article. Someone had to pay a ransom in order to obtain a decryption key for the files encrypted by the malware. Later, the funds from the provided BTC address were transferred to the address you mentioned.
Of particular interesting is a transaction of 65 bitcoins being sent from this address to the 1CnCfvUTFQf11QNeBEpk29rRXfNFg75R9n bitcoin address, which has received over 11,000 bitcoin addresses. The 1CnCfvUTFQf11QNeBEpk29rRXfNFg75R9n address could be used as a mixer to make it harder to law enforcement to track these bitcoins.