ALERT SUMMARY

🎯 MITRE ATT&CK

T1566 – Phishing
T1204 – User Execution

WHO:
Internal endpoint 172.16.17.49.
Malicious external domain mogagrocol.ru.

WHAT:
User attempted to access a known malicious phishing URL.
Initial outbound connection was allowed, followed by a blocked attempt by the firewall.

WHEN:
Mar 22, 2021 at 09:23 PM.

WHERE:
Outbound web traffic from 172.16.17.49 to mogagrocol.ru via proxy/firewall.

WHY:
User likely clicked a phishing link, resulting in outbound connection attempt to known malicious infrastructure.

HOW:
HTTP/HTTPS request initiated from endpoint.
First connection allowed before firewall enforcement blocked subsequent traffic.

IMPACT:
Partial exposure confirmed.
Endpoint considered potentially compromised due to successful initial connection.
Risk of payload delivery, credential harvesting, or drive-by compromise.

ACTION TAKEN:
Escalated to L2 / Incident Response.
Recommended:

• Perform EDR review on endpoint

• Run malware scan

• Check browser history and download artifacts

• Reset user credentials if necessary

• Block domain and related IoCs at firewall/proxy

OUTCOME:
True Positive – phishing URL accessed with partial network exposure.