### Overview
After detecting suspicious initial access via spear phishing, further analysis reveals that targeted emails contained malicious attachments designed to exploit vulnerabilities in email clients.

### Key Details
- **Targeted Industries:** Manufacturing and Energy sectors.
- **Attachments:** Utilized a mix of macros and embedded scripts.
- **Exploited Vulnerabilities:** CVE-2023-XXXX, affecting older email client versions.

### Recommendations
- Immediate update of email clients to patch known vulnerabilities.
- Conduct user training on identifying phishing attempts.

### Next Steps
Prepare for potential malicious code execution as attackers aim to gain deeper system access.