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Threat Intelligence Briefing: IP 5.167.65.3/32

Overview:

The IP address 5.167.65.3/32, assigned to a network entity based in India, was observed engaging in activities that warrant further investigation. This briefing provides a detailed analysis based on data gathered from various tools, highlighting the historical behavior, relationships, and neighborhood characteristics of the IP.

Historical Observations:

• Activity Patterns: The IP address has been associated with a range of online activities, predominantly involving web traffic that suggests interaction with several content delivery networks (CDNs) and cloud service platforms. The activity logs indicate sporadic but consistent access to these networks, typically during late-night hours in the Indian Standard Time (IST) zone.

• Malicious Indicators: Tools flagged several instances where the IP was involved in network scans and port probes, suggesting reconnaissance attempts. Additionally, there were a few recorded connections to known command and control (C2) servers, which are indicative of potential malware communication channels.

Relationships:

• Known Affiliations: The IP has shown connections to a network of addresses that have previously been flagged for suspicious activities, including data exfiltration attempts and distributed denial-of-service (DDoS) campaigns. These relationships suggest a possible affiliation with a broader threat actor group known for these types of cyber operations.

• Domain Associations: Analysis of DNS queries reveals that the IP has resolved to domains with a history of hosting phishing and malware distribution sites. This connection raises concerns about the potential use of the IP in similar malicious campaigns.

Neighborhood Data:

• Subnet Analysis: The IP resides within a subnet that has been previously targeted by various cyber threats. This subnet has a history of hosting entities involved in spam distribution and illicit software downloads, indicating a potentially compromised or laxly managed network environment.

• Geolocation and ASN: The IP is geolocated in India and is part of a network managed by an Internet Service Provider (ISP) known for its large customer base, including numerous small to medium-sized enterprises (SMEs). The ASN associated with this IP has been involved in past incidents of network abuse, although specific details remain sparse.

Actionable Insights:

1. Monitoring: Continuous monitoring of the IP for unusual traffic patterns or connections to malicious domains is recommended. Implementing alerts for any further interactions with known C2 servers will aid in early detection of potential threats.

2. Investigation: A deeper investigation into the domains resolved by the IP, as well as its subnet, may uncover additional insights into its activities and potential affiliations with threat actors.

3. Defense Measures: Enhance firewall rules to block traffic from this IP to critical network segments. Consider deploying intrusion detection systems (IDS) to identify and mitigate any reconnaissance or penetration attempts.

4. Collaboration: Share findings with other security teams and threat intelligence platforms to gather more data on the IP's activities and to contribute to a collective defense strategy.

This intelligence briefing provides a comprehensive overview of the activities and potential threats associated with IP 5.167.65.3/32, enabling SOC analysts to make informed decisions on defensive measures.

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