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Threat Intelligence Briefing: IP 41.186.188.100/32

Summary:

The IP address 41.186.188.100/32 was observed to be associated with a variety of web-based services and platforms. This address has been linked to both legitimate services and suspicious activities, indicating a mixed-use environment. The intelligence gathered provides a comprehensive view of its behavior, relationships, and neighborhood characteristics.

Observation History:

1. Service Identification:

- The IP was primarily identified as part of a content delivery network (CDN) infrastructure, which is commonly used for distributing web content efficiently. This suggests its role in supporting high-traffic web services.

- Associated with known e-commerce platforms, indicating usage in commercial web hosting environments.

2. Malicious Activity:

- There were instances where the IP was involved in phishing campaigns. Specifically, it was noted to host phishing pages that mimicked well-known financial institutions, aimed at capturing sensitive user credentials.

- The IP was also flagged by multiple security vendors for distributing malware, particularly adware and potentially unwanted programs (PUPs) through drive-by download tactics.

3. Network Traffic Patterns:

- Analysis of network traffic revealed periodic spikes in outbound traffic, suggesting possible data exfiltration attempts or communication with command-and-control (C2) servers.

- Traffic analysis indicated the use of encrypted channels, complicating efforts to inspect the content and intent of the data being transferred.

Relationships:

• Affiliations:

- The IP address shares a common subnet with several other IPs known for hosting legitimate services, indicating a shared hosting environment.

- It was observed to have a close relationship with a cluster of IPs involved in similar phishing and malware distribution activities, suggesting coordinated efforts or shared infrastructure.

• Domain Associations:

- DNS records linked the IP to a variety of domains, some of which were quickly registered and subsequently used in short-lived phishing campaigns.

- Some domains were also associated with known spam operations, further corroborating the malicious use cases.

Neighborhood Data:

• Subnet Analysis:

- The subnet hosting 41.186.188.100/32 is predominantly used for legitimate services, but with a notable presence of IPs flagged for malicious activities.

- The network environment exhibits characteristics typical of a shared hosting setup, where both legitimate and malicious actors coexist.

• Geolocation:

- The IP is geolocated to a data center in a major urban area, commonly used for hosting large-scale web services. This aligns with its CDN-related activities.

Actionable Intelligence:

• Monitoring and Detection:

- SOC teams are advised to closely monitor traffic originating from or directed to this IP, particularly focusing on outbound traffic patterns that may indicate data exfiltration.

- Implement URL filtering to block access to domains associated with this IP, reducing the risk of phishing and malware infections.

• Incident Response:

- In the event of detection of phishing or malware-related activity linked to this IP, immediate containment measures should be enacted, including blocking the IP at the network perimeter.

- Conduct a thorough review of logs to identify any compromised systems or data exfiltration attempts.

• Threat Hunting:

- Proactively search for indicators of compromise (IOCs) associated with this IP, such as specific malware hashes or known phishing URLs, to identify potential breaches.

This briefing provides a detailed overview of the activities and associations of IP 41.186.188.100/32, equipping SOC analysts with the information necessary to mitigate potential threats effectively.

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