54.39.136.106📋 Copy

IP INTELLIGENCE BRIEFING: 54.39.136.106/32

SUBJECT: Threat Assessment and Network Intelligence

CLASSIFICATION: SOC Actionable Intelligence

DATE: Current

ANALYSIS: 54.39.136.106

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EXECUTIVE SUMMARY

IP 54.39.136.106 presents as a moderate-risk cloud hosting address under OVH infrastructure (ASN 16276), associated with organization "Dmytro, Ahrefs Pte Ltd." The IP resolves to ahrefs.net with hostname proxy-ca002-san106.ahrefs.net. No active threat indicators detected, but the address operates within a high-abuse density subnet with 132 malicious neighbors.

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RISK PROFILE

Overall Risk Score: 40/100 (Moderate)

Risk Indicators:

• Control Plane: Listed on 1 of 8 DNSBLs (operator score: 0.2174)
• No active threat indicators, blacklists, or known campaigns
• No Tor exit node, VPN, proxy, or CDN classification
• Abuse Confidence Score: Not populated

Geolocation:

• Reported Location: Beauharnois, Quebec, Canada
• Validation Issue: Geo-RTT violation detected. Claimed distance 5,628.6km with measured RTT of 28-32ms, which is physically impossible for that distance (minimum possible RTT: 112.6ms). This indicates potential geolocation spoofing or data inconsistency.

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NETWORK CLASSIFICATION

Infrastructure Type: Cloud Hosting

Provider: OVH

Connection Type: Cloud Compute (is_cloud: true, is_hosting: true)

Subnet: 54.39.136.0/24

Services: Firewall/no services detected (no open ports)

DNS: Single PTR record (proxy-ca002-san106.ahrefs.net)

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NEIGHBORHOOD ANALYSIS (54.39.136.0/24)

Subnet Risk Profile:

• Abuse Density: 0.5156 (High)
• Classification: high_abuse
• Total Siblings: 256
• Active Siblings: 189
• Threat Siblings: 132 (51.5%)

Risk Distribution (Sample of 100 Neighbors):

• High Risk: 0
• Medium Risk: 60
• Low Risk: 40

The subnet demonstrates elevated abuse activity with approximately half of active addresses flagged as threats. This contextualizes the IP as part of a broader abuse pattern.

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OBSERVATION HISTORY (22 Signals)

Temporal Analysis:

• Latest Signal (2026-06-27): Geolocation probe showing RTT violation (28ms vs 112.6ms minimum for claimed 5,629km distance)
• 2026-06-25: Abuse density classification (0.5156), OVH hosting provider confirmation, ahrefs.net domain resolution
• Signal Count: 1 threat observation recorded
• Persistence: 0 days (not persistently malicious)

The history indicates consistent classification as OVH hosting with recurring geolocation inconsistencies, suggesting the IP may be using cloud infrastructure with reported location misalignment.

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RELATIONSHIP GRAPH (57 Relationships)

Primary Associations:

• Network: OVH-CUST-281059681 (52+ relationships)
• No cross-organization or cross-campaign relationships detected
• No certificate or hostname associations beyond ahrefs.net domain

The IP maintains relationships primarily within its assigned OVH customer network block.

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RECOMMENDED ACTIONS

Firewall/Blocking Recommendations:

Additional Context:

• No specific threat indicators warranting immediate escalation
• Consider blocking at network perimeter due to subnet abuse density
• Monitor for pattern of similar addresses in 54.39.136.0/24 subnet

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CONCLUSION

IP 54.39.136.106 is a cloud hosting address (OVH) with moderate risk scoring. While no direct threat indicators exist, the subnet's high abuse density and the IP's presence on DNSBLs warrant defensive blocking. The geolocation inconsistency should be noted for future correlation with similar spoofed addresses.

Recommendation: Implement blocking firewall rules as above. Monitor subnet for correlated malicious activity.

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