A penetration tester compromises a Windows OS endpoint that is joined to an Active Directory...

Rubeus is a post-exploitation tool used for Kerberos abuse, including ticket extraction, pass-the-ticket, ticket renewal, and Kerberoasting. It ' s ideal for lateral movement within Active Directory environments.

WinPEAS is mainly used for local privilege escalation and enumeration.

NTLMRelayX (from Impacket) is useful for relaying NTLM authentication but is not focused on Kerberos.

Impacket is a collection of tools; Rubeus is more targeted for Kerberos attacks.