Performing Static Malware Analysis with PEStudio

When to Use

• A suspicious Windows executable has been collected and needs initial triage before sandbox execution
• You need to identify imports, strings, and resources that reveal malware functionality without running the sample
• Determining whether a PE file is packed, obfuscated, or contains anti-analysis techniques
• Extracting indicators of compromise (hashes, URLs, IPs, registry keys) embedded in a binary
• Classifying a sample's capabilities based on its import table and section characteristics

Do not use for dynamic behavioral analysis requiring execution; use a sandbox (Cuckoo, ANY.RUN) for runtime behavior observation.

Prerequisites

• PEStudio (free edition from https://www.winitor.com/) installed on an isolated analysis workstation
• Python 3.8+ with pefile library for scripted PE analysis (pip install pefile)
• CFF Explorer or PE-bear as supplementary PE analysis tools
• Access to VirusTotal API for hash lookups and community intelligence
• Isolated analysis VM with no network connectivity to production systems