Reads user/profile data of local email clients

Email clients store some user data on disk where infostealers will often target it.

Reads user/profile data of web browsers

Infostealers often target stored browser data, which can include saved credentials etc.

Looks up external IP address via web service

Uses a legitimate IP lookup service to find the infected system's external IP.

Enumerates physical storage devices

Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

Suspicious use of SetThreadContext