Hashcat is a well-known password recovery tool that uses the power of GPUs to expedite hash cracking, including MD5 hashes, which are known to be fast to compute and hence amenable to brute force and other cracking techniques. Hashcat's optimization for performance makes it an ideal choice for cracking MD5 hashes. John the Ripper is also a password cracking tool, but it is typically preferred for CPU-based cracking and might be less optimal than Hashcat for cracking MD5 hashes using brute force. SQLmap and Netcat are incorrect answers as SQLmap is used primarily for SQL injection discovery and exploitation, and Netcat is a networking utility tool for reading from and writing to network connections, neither being suited for hash cracking purposes.