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Threat Intelligence Briefing: IP 117.148.115.15/32

Overview:

The IP address 117.148.115.15/32 is associated with a server located in China. This address has been observed to engage in several activities that have raised concerns regarding its legitimacy and potential threat.

Observation History:

• Domain Associations: The IP address has been linked to domains involved in hosting websites that distribute malware. These domains are frequently updated, suggesting an effort to evade detection and blacklisting.
• Malicious Activity: The IP has been flagged for distributing malware, particularly through phishing campaigns. These campaigns have targeted users with malicious email attachments and links, leading to the compromise of user credentials and system integrity.
• Network Traffic: Analysis of network traffic revealed unusual patterns, including large volumes of outbound traffic to known command and control (C2) servers. This behavior is indicative of compromised systems being used for data exfiltration or further malware dissemination.

Relationships:

• Related IPs: The IP address has been observed communicating with a range of other suspicious IPs within the same subnet. These IPs have been involved in similar malicious activities, suggesting a coordinated effort or a botnet-like operation.
• Threat Actors: While direct attribution to specific threat actors is not confirmed, the tactics, techniques, and procedures (TTPs) align with those used by known cybercriminal groups operating out of China. This includes the use of fast-flux DNS and spear-phishing campaigns.

Neighborhood Data:

• Subnet Analysis: The broader subnet 117.148.115.0/24 contains multiple IPs that have been flagged for hosting phishing sites and distributing malware. This suggests a network infrastructure potentially dedicated to cybercriminal activities.
• Geolocation: The IP is geolocated in China, which is consistent with other observations of cyber operations originating from this region. However, this does not preclude the use of compromised servers in other locations.

Actionable Recommendations:

1. Block Communication: Implement network rules to block traffic to and from 117.148.115.15/32 and its associated subnet to prevent potential data exfiltration and malware distribution.

2. Monitor Related IPs: Continuously monitor traffic to and from IPs within the 117.148.115.0/24 subnet for signs of malicious activity.

3. Phishing Awareness: Enhance phishing awareness training for users to mitigate the risk of credential compromise through phishing campaigns.

4. Incident Response Preparedness: Prepare incident response teams to quickly address any potential breaches or system compromises linked to this IP.

Conclusion:

The IP address 117.148.115.15/32 has been identified as a source of malicious activity, primarily related to malware distribution and phishing campaigns. Given its associations and observed behaviors, it is recommended that organizations take proactive measures to mitigate potential threats posed by this address and its related network.

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