54.39.89.50📋 Copy

# IP INTELLIGENCE BRIEFING: 54.39.89.50/32

## EXECUTIVE SUMMARY

IP 54.39.89.50 presents as a moderate-risk cloud infrastructure endpoint hosted by OVH. The IP resolves to an Ahrefs domain (ahrefs.net) but demonstrates firewalled behavior with no active services. While the endpoint itself shows no direct malicious indicators, the /24 subnet exhibits high abuse density (0.7109), warranting contextual monitoring.

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## INFRASTRUCTURE PROFILE

Ownership & Network

• ASN: 16276 (OVH)
• Organization: Dmytro, Ahrefs Pte Ltd
• CIDR Block: 54.39.89.0/24
• Infrastructure Type: CloudCompute / Hosting
• Connection Type: Firewalled / No Services

Geolocation

• Reported Location: Beaucharnois, QC, Canada
• Geographic Validity: Flagged — RTT violation (28ms observed vs. 112.6ms minimum possible for 5,629km distance)
• Probe Count: 5 probes across network path

DNS Resolution

• PTR Hostname: proxy-ca012-san50.ahrefs.net
• Forward Resolution: proxy-ca012-san50.ahrefs.net (ahrefs.net)
• Forward Confirmed: False
• Email Auth: No SPF/DMARC records configured

---

## THREAT ASSESSMENT

Risk Metrics

• Overall Risk Score: 40 (Moderate Risk)
• Abuse Confidence Score: Not scored
• Blacklist Status: Clean (0 blacklists)
• Known Attacker: No
• Spam Source: No
• Tor Exit Node: No
• Campaign Correlation: None

Control Plane Indicators

• Route Stability: Unstable
• DNSBL Listings: 1 of 8 lists
• RPKI State: Not reported
• Moas Status: No

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## NETWORK CONTEXT

Subnet Analysis (54.39.89.0/24)

• Abuse Density: 0.7109 (High)
• Classification: high_abuse
• Total Siblings: 256 IPs
• Active Siblings: 125
• Threat Siblings: 182
• Inherited Risk Score: 28

Neighbor Risk Distribution

• 100 neighbors sampled
• Medium Risk: 100
• High Risk: 0
• Low Risk: 0
• Multiple neighboring IPs (54.39.89.0-54.39.89.50) consistently show risk score of 40 and authority score of 50

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## OBSERVATION HISTORY

Tracking Period: 22 observations

Recent Activity: June 15–20, 2026

Signal Timeline:

• June 20, 2026: DNS resolution for ahrefs.net (confidence: 0.80)
• June 15, 2026: Subnet abuse density classification (confidence: 0.75)
• June 15, 2026: Network threat assessment (confidence: 0.20)
• June 15, 2026: Control plane operator score 0.2174 (confidence: 0.60)

Temporal Indicators:

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

---

## RELATIONSHIP MAPPING

Identified Relationships: 45 total

• All relationships map to same network identifier: OVH-CUST-281059691
• No certificate, hostname, or organization cross-references beyond network-level associations
• Limited lateral relationship data available

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## SECURITY ACTIONS & RECOMMENDATIONS

Current Risk Posture: Moderate

Recommended Actions:

1. Block or Monitor: Given the high-abuse subnet classification and moderate risk score, implement monitoring or block rules for this IP at perimeter security controls.

2. Subnet-Level Context: The /24 subnet shows elevated abuse density (0.7109). Consider broader subnet-level policies for 54.39.89.0/24.

3. Geographic Validation: RTT anomaly suggests potential geo-spoofing or misconfiguration. Verify expected traffic patterns match Canadian origin.

4. No Active Services: Endpoint appears firewalled. No port scanning or service enumeration recommended beyond existing controls.

Firewall Rule Pattern (Example):

```

# Block or rate-limit based on risk profile

iptables -A INPUT -s 54.39.89.50/32 -j DROP

# OR for monitoring

iptables -A INPUT -s 54.39.89.50/32 -j LOG --log-prefix "54.39.89.50- "

```

Related IPs for Monitoring:

• 54.39.89.0-54.39.89.255 (full /24 subnet)
• 182 threat siblings identified within same subnet

---

## ANALYST NOTES

This IP represents a cloud hosting endpoint with legitimate Ahrefs DNS resolution but operates in a high-abuse subnet environment. The moderate risk score reflects the subnet context rather than endpoint-specific malicious activity. Monitor for outbound connections from this IP to threat actors and consider the subnet-level risk in incident correlation workflows.

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Report Generated: [Current Date]

Data Source: IPDebrief Intelligence Platform

Classification: Defensive Security Intelligence

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