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URLhaus: 32-bit Malicious URLs

ioc-hunt HIGH URLhaus
CommonSecurityLogDnsEvents
iocurlhaus
This rule was pulled from an open-source repository and enriched with AI. Validate in a test environment before deploying to production.
View original rule at URLhaus →
Retrieved: 2026-07-20T11:00:00Z · Confidence: medium

Hunt Hypothesis

This hunt targets adversaries leveraging known 32-bit malicious web endpoints to deliver payloads or exfiltrate data via compromised browser sessions. Proactively hunting these specific URL patterns in Azure Sentinel is critical because their high severity and legacy architecture often indicate targeted campaigns that may bypass standard perimeter defenses relying on modern 64-bit signatures.

IOC Summary

Threat: 32-bit Total URLs: 33 Active URLs: 31

URLStatusThreatDate Added
hxxp://110.39.227.44:51602/ionlinemalware_download2026-07-20
hxxp://119.117.190.194:46446/ionlinemalware_download2026-07-20
hxxp://110.39.227.44:51602/bin.shonlinemalware_download2026-07-20
hxxp://123.130.188.111:48423/ionlinemalware_download2026-07-20
hxxp://110.37.116.78:52013/ionlinemalware_download2026-07-20
hxxp://183.23.140.107:35951/ionlinemalware_download2026-07-20
hxxp://110.37.116.78:52013/bin.shonlinemalware_download2026-07-20
hxxp://115.50.248.116:38317/bin.shonlinemalware_download2026-07-20
hxxp://123.130.188.111:48423/bin.shonlinemalware_download2026-07-20
hxxp://123.11.79.11:35843/bin.shonlinemalware_download2026-07-20
hxxp://103.249.199.3:49581/ionlinemalware_download2026-07-20
hxxp://183.23.137.161:53767/iofflinemalware_download2026-07-20
hxxp://183.23.140.107:35951/bin.shonlinemalware_download2026-07-20
hxxp://183.23.137.161:53767/bin.shofflinemalware_download2026-07-20
hxxp://115.61.114.194:42977/bin.shonlinemalware_download2026-07-20
hxxp://123.4.159.180:56374/ionlinemalware_download2026-07-20
hxxp://42.237.82.176:39637/bin.shonlinemalware_download2026-07-20
hxxp://115.49.82.37:48169/ionlinemalware_download2026-07-20
hxxp://81.236.234.16:59159/bin.shonlinemalware_download2026-07-20
hxxp://123.4.159.180:56374/bin.shonlinemalware_download2026-07-20
hxxp://115.50.168.193:44781/ionlinemalware_download2026-07-20
hxxp://103.107.97.42:43299/ionlinemalware_download2026-07-20
hxxp://182.116.35.167:60395/ionlinemalware_download2026-07-20
hxxp://115.50.168.193:44781/bin.shonlinemalware_download2026-07-20
hxxp://123.129.131.24:50662/ionlinemalware_download2026-07-20

KQL: Url Dns Hunt

// Hunt for DNS resolution of URLhaus malicious domains
// Threat: 32-bit
let malicious_domains = dynamic(["182.116.35.167", "103.107.97.42", "115.50.248.116", "123.130.188.111", "115.50.168.193", "110.39.227.44", "103.249.199.3", "115.61.114.194", "41.249.56.178", "110.37.116.78", "123.129.131.24", "115.49.82.37", "42.237.82.176", "124.6.169.54", "77.247.88.82", "81.236.234.16", "110.37.119.65", "123.11.79.11", "183.23.140.107", "119.117.190.194", "123.4.159.180"]);
DnsEvents
| where Name has_any (malicious_domains)
| project TimeGenerated, Computer, Name, IPAddresses
| order by TimeGenerated desc

KQL: Url Proxy Hunt

// Hunt for web traffic to URLhaus malicious domains
let malicious_domains = dynamic(["182.116.35.167", "103.107.97.42", "115.50.248.116", "123.130.188.111", "115.50.168.193", "110.39.227.44", "103.249.199.3", "115.61.114.194", "41.249.56.178", "110.37.116.78", "123.129.131.24", "115.49.82.37", "42.237.82.176", "124.6.169.54", "77.247.88.82", "81.236.234.16", "110.37.119.65", "123.11.79.11", "183.23.140.107", "119.117.190.194", "123.4.159.180"]);
CommonSecurityLog
| where RequestURL has_any (malicious_domains) or DestinationHostName has_any (malicious_domains)
| project TimeGenerated, SourceIP, RequestURL, DestinationHostName, DeviceAction
| order by TimeGenerated desc

Required Data Sources

Sentinel TableNotes
CommonSecurityLogEnsure this data connector is enabled
DnsEventsEnsure this data connector is enabled

References

False Positive Guidance

Here are four specific false positive scenarios for the URLhaus: 32-bit Malicious URLs detection rule in an enterprise environment, including suggested filters or exclusions:

Original source: https://urlhaus.abuse.ch/