INTELLIGENCE BRIEFING: 52.159.229.5/32
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**EXECUTIVE SUMMARY**
Target IP 52.159.229.5 is a Microsoft Azure cloud infrastructure endpoint located in San Francisco, CA. Overall risk assessment: LOW (Risk Score: 25/100). The IP shows minimal threat indicators, no known malicious activity, and operates within legitimate enterprise cloud infrastructure.
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**OWNERSHIP & GEOLOCATION**
- Organization: Microsoft Corporation (ASN 8075, MSFT)
- CIDR Block: 52.145.0.0/16
- Infrastructure Type: Microsoft Azure Cloud Compute
- Geolocation: San Francisco, California, US (37.78°N, 122.42°W)
- RIR: ARIN
- Contact: abuse@microsoft.com
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**THREAT ASSESSMENT**
- Risk Score: 25 (Low Risk)
- Abuse Confidence: Not applicable (legitimate infrastructure)
- Blacklist Status: 0 blacklists (1 DNSBL listing among 8 total)
- Known Campaigns: None identified
- Tor/Proxy/VPN: Negative indicators (not a Tor exit, proxy, or VPN endpoint)
- Threat Persistence: 0 days (no persistent malicious activity observed)
Key Findings:
- No known threat indicators or attacker signatures
- No active spam source classification
- No known attacker reputation
- No campaigns correlated with this IP
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**NETWORK BEHAVIOR & SERVICES**
- Open Ports: None detected (Firewalled / No Services)
- DNS Resolution: Forward resolution not confirmed; no PTR records
- HTTP/HTTPS: No services detected on standard ports
- TLS/Certificates: None observed
- Traceroute: 23 hops; first hop RTT 0.2ms, last hop 89.6ms; 7 timed-out hops (Transit: Comcast)
- Route Stability: Not stable (isRouteStable: false)
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**SUBNET ANALYSIS (52.159.229.0/24)**
- Classification: mostly_clean
- Abuse Density: 16.67% (1 threat sibling among 6 siblings)
- Risk Distribution: 0 High, 1 Medium, 5 Low
- Notable Neighbor: 52.159.229.50 (Risk Score: 50 - Medium Risk)
Actionable Intelligence: One neighboring IP (52.159.229.50) shows elevated risk (Score: 50). Monitor for potential lateral threat activity within this subnet.
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**OBSERVATION HISTORY**
- Total Observations: 15 signals recorded
- Recent Activity: All observations dated 2026-06-16 (single observation day)
- Ownership Changes: 0
- Threat Observation Count: 1 (non-persistent)
- Stability Status: Not persistently malicious
Temporal Analysis: The IP demonstrates stable ownership characteristics with no recent ownership changes. Single threat observation does not indicate persistent malicious behavior.
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**RELATIONSHIP GRAPH**
- Same Network: 4 relationships to MSFT network entities
- External Relationships: None identified
- Associated Hostnames: None detected
- Certificates: None observed
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**RECOMMENDED ACTIONS**
Classification: Low Risk - Monitor Only
1. Traffic Handling: Allow legitimate Microsoft Azure traffic patterns
2. Monitoring: Continue standard monitoring; no immediate blocking required
3. Subnet Awareness: Monitor sibling IP 52.159.229.50 for elevated risk activity
4. False Positive Consideration: Low probability of malicious activity; investigate only if correlating with other threat indicators
Firewall Rules: No specific rules required for this IP. Standard cloud infrastructure rules apply.
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**INTELLEIGENCE CONCLUSION**
IP 52.159.229.5 represents legitimate Microsoft Azure cloud infrastructure with no evidence of malicious activity. The low-risk score, combined with enterprise infrastructure indicators, suggests this IP should be treated as trusted cloud traffic. SOC analysts should focus monitoring efforts on the one identified threat sibling (52.159.229.50) rather than this endpoint.
Final Risk Rating: LOW (25/100)
Recommended Action: MONITOR
Priority: LOW
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
π’ Ownership & Registration
| Organization | Microsoft Corporation |
| ASN | AS8075 |
| Network Name | MSFT |
| CIDR Block | 52.145.0.0/16 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
π DNS Intelligence
| PTR Record | No PTR |
| Forward Confirmed | No β PTR hostname does not resolve back to this IP (weak signal) |
π DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
βοΈ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting β Infrastructure provider without advanced routing |
π Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| Server | β |
| HTTP Title | β |
π TLS Certificate
| SANs | None |
| Valid From | β |
| Valid Until | β |
π― Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 35% | 2 | 3 |
| routing | 17% | 1 | 1 |
| services | 17% | 1 | 1 |
| ownership | 35% | 2 | 3 |
| reputation | 28% | 1 | 3 |
| geolocation | 17% | 1 | 1 |
| Overall | 25% | 8 | 12 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
π Observation Timeline π Live
| First Seen | 2026-06-10 02:37:55 UTC |
| Last Seen | 2026-06-21 17:09:24 UTC |
| Profile Built | 2026-06-21 17:14:16 UTC |
| Data Freshness | Live |
| Signal Types | 18 |
| Total Observations | 19 |
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