API Reference: Adversary Infrastructure Tracking
crt.sh (Certificate Transparency)
| Field |
Description |
issuer_name |
Certificate issuer |
name_value |
SANs / common names |
serial_number |
Certificate serial |
not_before / not_after |
Validity period |
URLhaus API
Returns malicious URLs hosted on the domain.
ThreatFox API
| Field |
Description |
ioc |
IOC value |
threat_type |
botnet_cc, payload_delivery, etc. |
malware |
Associated malware family |
tags |
IOC tags |
Pivoting Techniques
| Pivot |
Method |
| Certificate SANs |
crt.sh wildcard search |
| Shared IP |
PassiveTotal, VirusTotal |
| WHOIS registrant |
WHOIS history |
| DNS history |
PassiveDNS (Farsight, CIRCL) |
| JARM fingerprint |
TLS server fingerprinting |
| HTTP response hash |
Favicon hash, body hash |
Infrastructure Relationships
| Edge Type |
Description |
| shared_certificate |
Same TLS cert on different hosts |
| shared_ip |
Multiple domains on same IP |
| shared_registrant |
Same WHOIS registrant |
| shared_nameserver |
Same NS records |
MITRE ATT&CK
- T1583 - Acquire Infrastructure
- T1584 - Compromise Infrastructure