Wmic.exe is a powerful command line interpreter for interacting with the Windows Management Instrumentation (WMI). WMI is Microsoft's version of Web-Based Enterprise Management (WBEM). You can use WMI scripts to automate tasks on remote computers.
This process has been abused by attackers and pentesters for quite some time. It is a powerful, native tool for acquiring privileged information or conducting arbitrary privileged activity on Windows systems. As such, it has become a favorite for attacker abuse over the years.