Checks BIOS information in registry

BIOS information is often read in order to detect sandboxing environments.

Executes dropped EXE

Themida packer

Detects Themida, an advanced Windows software protection system.

Enumerates connected drives

Attempts to read the root path of hard drives other than the default C: drive.

Looks up external IP address via web service

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

Suspicious use of NtSetInformationThreadHideFromDebugger