Run strings on internal files to look for hardcoded IP addresses or suspicious URLs.

Potential Trojan/Downloader wrapper. RAR files are frequently used to bypass simple email filters that don't inspect compressed contents. Common Payloads:

Check for setup.exe or install.sfx within the archive metadata. Technical Investigation Steps

Indicates the archive is encrypted or contains packed executables.

Use a sandboxed environment to extract contents using unrar x .

Malicious shortcuts designed to execute PowerShell scripts.