## Overview
Upon receiving the alert for a suspicious email attachment, further investigation revealed unauthorized code execution on the target system. This suggests that the initial access was leveraged to deploy a malicious payload, likely part of the Equation Group's toolkit.

## Technical Details
- **Payload Analysis**: The attachment contained a heavily obfuscated script, which upon execution, triggered a series of PowerShell commands.
- **MD5 Collisions**: The payload's hash matches known Equation Group signatures, indicating potential use of MD5 collision techniques to disguise malicious binaries.

## Implications
The execution of this code marks the transition from initial access to active compromise, setting the stage for persistent foothold establishment.