54.39.203.32📋 Copy

# IPDEBRIEF INTELLIGENCE BRIEFING

Target: 54.39.203.32/32

Classification: MODERATE RISK INFRASTRUCTURE

Date: 2026-06-18

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## EXECUTIVE SUMMARY

IP 54.39.203.32 is a cloud-hosted infrastructure address operated by OVH under the Ahrefs Pte Ltd organization. The IP presents moderate risk (score: 40) with high-abuse neighborhood classification. No direct threat indicators or active malicious activity detected, but the subnet exhibits elevated abuse density requiring defensive monitoring.

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## INFRASTRUCTURE PROFILE

DNS Resolution: proxy-ca008-san32.ahrefs.net (ahrefs.net)

Reverse DNS: Confirmed single PTR record

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## THREAT ASSESSMENT

• Reputation Score: 40 (Moderate Risk)
• Abuse Confidence: No active indicators
• Known Attacker: No
• Tor Exit Node: No
• Blacklist Count: 0
• Known Campaigns: None

Control Plane Concerns:

• Route stability: False (inconsistent routing)
• DNSBL Listings: 1 of 8 lists
• Operator Score: 0.2174 (Minimal)
• RPKI State: Not validated
• IRR Consistency: Not assessed

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## NEIGHBORHOOD ANALYSIS (54.39.203.0/24)

• Abuse Density: 0.6523 (High)
• Classification: High Abuse
• Total Siblings: 256
• Active Siblings: 217
• Threat Siblings: 167
• Inherited Risk: 26

Risk Distribution in /24:

• High Risk: 0
• Medium Risk: 98
• Low Risk: 2

*Sample Neighbor Risk Scores (54.39.203.x):* All sampled IPs show riskScore: 40, authorityScore: 50

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## OBSERVATION HISTORY

Total Observations: 22 signals detected

Recent Activity:

• 2026-06-18T14:18:42 – Subnet classification: high_abuse (confidence: 0.75)
• 2026-06-18T14:14:38 – Operator score: Minimal (confidence: 0.60)
• 2026-06-14T06:21:03 – Campaign likelihood: none
• 2026-06-14T06:19:01 – Geolocation validation issues (RTT discrepancy)

Temporal Indicators:

• Ownership Changes: 0
• Threat Persistence Days: 0
• Is Persistently Malicious: No

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## RELATIONSHIP MAPPING

• Total Relationships: 44
• Primary Association: Same Network (OVH-CUST-281059687)
• Network Classification: 39+ duplicate network relationships identified

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## THREAT INTELLIGENCE JUDGMENT

Risk Factors

1. High-Abuse Subnet: 167 threat siblings detected in /24 block

2. Route Instability: Control plane shows inconsistent routing

3. DNSBL Presence: Listed on 1 of 8 DNSBLs

4. Geolocation Inconsistency: RTT validation failure (30ms observed vs 112.6ms minimum for 5,629km distance)

Defensive Considerations

• No direct malicious indicators against this specific IP
• Infrastructure is cloud-based with firewalled services
• DNS resolution points to ahrefs.net domain

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## RECOMMENDED ACTIONS

1. Monitor Subnet: Track 54.39.203.0/24 for abuse spikes (167 threat siblings)

2. Route Watch: Monitor for BGP route changes (currently unstable)

3. DNSBL Review: Investigate reason for single DNSBL listing

4. Geolocation Validation: Investigate RTT discrepancy (may indicate spoofing)

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## SOC ANALYST NOTES

This IP represents legitimate cloud infrastructure with moderate risk classification. No active exploitation observed. Primary concern is the high-abuse neighborhood context. Recommend correlating with threat intelligence feeds for any abuse activity originating from this subnet.

Confidence Level: Moderate

Data Sufficiency: 1 of 6 dimensions covered in profile

Last Updated: 2026-06-18

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