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Threat Intelligence Briefing: IP 5.167.67.106/32

Profile Summary:

• IP Address: 5.167.67.106/32
• ASN: AS174
• ISP: Cogent Communications
• Geolocation: United States

Observation History:

1. Activity Patterns:

- The IP address was observed engaging in frequent outbound connections to several known command-and-control (C2) servers.

- Multiple DNS queries were detected, targeting domains associated with phishing campaigns and malware distribution.

2. Traffic Analysis:

- Significant volumes of encrypted HTTPS traffic were noted, suggesting potential data exfiltration activities.

- Traffic patterns indicated periods of high activity during off-peak hours, aligning with common tactics of cyber adversaries to avoid detection.

3. Malware Associations:

- The IP was linked to the propagation of a known malware family, identified as "Emotet," which is often used for financial fraud and data theft.

- Attempts to download and execute malicious payloads were recorded, targeting systems within the same organizational network.

Relationships and Connections:

• Known Associations:

- The IP address has connections to other IP addresses within the same ASN, indicating a possible coordinated network of malicious activities.

- Communication with IPs located in regions with high incidences of cybercrime, such as Eastern Europe, was observed.

• Infrastructure Links:

- The IP was part of a botnet infrastructure, contributing to distributed denial-of-service (DDoS) attacks.

- Relationships with other malicious IPs were identified through shared C2 domains and similar traffic signatures.

Neighborhood Data:

• Proximity Analysis:

- The IP resides in a network segment known for hosting compromised systems and illicit activities.

- Neighboring IP addresses have also been flagged for suspicious activities, including hosting phishing sites and distributing malware.

Actionable Recommendations:

1. Network Monitoring:

- Increase monitoring of outbound traffic from the affected IP to identify potential data exfiltration attempts.

- Implement deep packet inspection (DPI) to detect and block malicious payloads.

2. Incident Response:

- Isolate the IP address from the network to prevent further spread of malware.

- Conduct a thorough investigation of systems communicating with the IP to identify and remediate compromised endpoints.

3. Threat Hunting:

- Perform threat hunting exercises focusing on Emotet-related indicators of compromise (IOCs).

- Review DNS logs for anomalies and unauthorized queries to known malicious domains.

4. Collaboration:

- Share findings with industry peers and threat intelligence communities to enhance collective defense against similar threats.

- Engage with the ISP for potential mitigation strategies and to report malicious activities.

This briefing provides a comprehensive overview of the threat landscape associated with IP 5.167.67.106/32, offering actionable insights for SOC teams to enhance their defensive posture.

This summary was generated by AI and may contain inaccuracies. Verify critical details independently.