List the files inside using unzip -l or zipinfo. Look for unusual extensions like .exe , .vbs , or .js hidden inside.
Run the file in a (sandbox) like Joe Sandbox or a private Virtual Machine.
Check if it attempts to contact a Command & Control (C2) server or download additional payloads. XXWardinaXX.zip
If it's for a CTF (Capture The Flag) challenge, the "write-up" would instead focus on the specific steps (like cracking a password or exploiting a ZipSlip vulnerability ) used to retrieve a hidden flag. Malware Analysis Report - CISA
High, Medium, or Low based on its ability to exfiltrate data or damage the system. List the files inside using unzip -l or zipinfo
Run a "strings" utility to extract human-readable text. You might find hardcoded IP addresses, URLs, or commands.
The first step is to establish the basic identity of the file using cryptographic hashes to ensure it hasn't been tampered with. XXWardinaXX.zip Check if it attempts to contact a Command
High entropy often indicates the contents are encrypted or packed to hide from antivirus software. 3. Dynamic Analysis (Behavioral)