This hunt targets adversary behavior where compromised 32-bit systems initiate outbound connections to known malicious domains identified by URLhaus, indicating potential malware communication or command-and-control activity. The SOC team should proactively hunt for these specific indicators in Azure Sentinel to rapidly isolate affected legacy endpoints and prevent lateral movement before the threat escalates within the network perimeter.
Threat: 32-bit Total URLs: 34 Active URLs: 34
| URL | Status | Threat | Date Added |
|---|---|---|---|
hxxp://46.236.65.145:50730/bin.sh | online | malware_download | 2026-07-16 |
hxxp://120.28.198.192:56244/bin.sh | online | malware_download | 2026-07-16 |
hxxp://59.96.140.26:58251/bin.sh | online | malware_download | 2026-07-16 |
hxxp://77.247.88.103:43260/i | online | malware_download | 2026-07-16 |
hxxp://115.57.253.223:59731/i | online | malware_download | 2026-07-16 |
hxxp://77.247.88.103:43260/bin.sh | online | malware_download | 2026-07-16 |
hxxp://115.97.187.121:35354/i | online | malware_download | 2026-07-16 |
hxxp://61.53.121.46:34571/i | online | malware_download | 2026-07-16 |
hxxp://182.121.233.32:45190/i | online | malware_download | 2026-07-16 |
hxxp://125.45.66.92:56671/i | online | malware_download | 2026-07-16 |
hxxp://182.121.233.32:45190/bin.sh | online | malware_download | 2026-07-16 |
hxxp://110.37.88.141:56881/bin.sh | online | malware_download | 2026-07-16 |
hxxp://110.36.15.1:54205/i | online | malware_download | 2026-07-16 |
hxxp://185.89.157.150:32986/i | online | malware_download | 2026-07-16 |
hxxp://180.116.55.223:47238/bin.sh | online | malware_download | 2026-07-16 |
hxxp://185.89.157.150:32986/bin.sh | online | malware_download | 2026-07-16 |
hxxp://36.71.29.111:45855/i | online | malware_download | 2026-07-16 |
hxxp://222.142.240.17:50115/i | online | malware_download | 2026-07-16 |
hxxp://110.37.83.1:37394/i | online | malware_download | 2026-07-16 |
hxxp://36.71.29.111:45855/bin.sh | online | malware_download | 2026-07-16 |
hxxp://222.142.240.17:50115/bin.sh | online | malware_download | 2026-07-16 |
hxxp://222.140.180.125:42956/bin.sh | online | malware_download | 2026-07-16 |
hxxp://110.37.83.1:37394/bin.sh | online | malware_download | 2026-07-16 |
hxxp://61.136.85.126:45075/i | online | malware_download | 2026-07-16 |
hxxp://42.226.232.202:52628/i | online | malware_download | 2026-07-16 |
// Hunt for DNS resolution of URLhaus malicious domains
// Threat: 32-bit
let malicious_domains = dynamic(["125.45.66.92", "115.57.253.223", "222.142.240.17", "185.89.157.150", "110.37.83.1", "182.121.233.32", "77.247.88.103", "61.136.85.126", "110.37.88.141", "180.116.55.223", "115.97.187.121", "203.101.181.9", "110.36.15.1", "42.226.232.202", "36.71.29.111", "171.38.24.62", "120.28.198.192", "61.53.121.46", "46.236.65.145", "222.140.180.125", "123.11.243.153", "59.96.140.26"]);
DnsEvents
| where Name has_any (malicious_domains)
| project TimeGenerated, Computer, Name, IPAddresses
| order by TimeGenerated desc
// Hunt for web traffic to URLhaus malicious domains
let malicious_domains = dynamic(["125.45.66.92", "115.57.253.223", "222.142.240.17", "185.89.157.150", "110.37.83.1", "182.121.233.32", "77.247.88.103", "61.136.85.126", "110.37.88.141", "180.116.55.223", "115.97.187.121", "203.101.181.9", "110.36.15.1", "42.226.232.202", "36.71.29.111", "171.38.24.62", "120.28.198.192", "61.53.121.46", "46.236.65.145", "222.140.180.125", "123.11.243.153", "59.96.140.26"]);
CommonSecurityLog
| where RequestURL has_any (malicious_domains) or DestinationHostName has_any (malicious_domains)
| project TimeGenerated, SourceIP, RequestURL, DestinationHostName, DeviceAction
| order by TimeGenerated desc
| Sentinel Table | Notes |
|---|---|
CommonSecurityLog | Ensure this data connector is enabled |
DnsEvents | Ensure this data connector is enabled |
Here are specific false positive scenarios for the URLhaus: 32-bit Malicious URLs detection rule, along with recommended filters and exclusions tailored for an enterprise environment:
Legacy Patch Management Scans
ccmexec.exe, IvantiAgent.exe) and restrict the alert to only trigger if the destination URL does not belong to a trusted internal whitelist of vendor domains (e.g., *.microsoft.com, *.adobe.com).32-bit Browser Extensions for Compliance Audits
chrome.exe or msedge.exe) where the user account belongs to the “IT-Admins” or “Compliance-Auditors” security group, provided the destination URL is categorized as “Business/Productivity” in the proxy logs