This detection identifies adversary activity involving the execution of 32-bit malware via a curated set of known malicious URLs, signaling potential initial access or lateral movement attempts within the environment. The SOC team should proactively hunt for these indicators in Azure Sentinel to rapidly isolate compromised endpoints and prevent the spread of legacy-targeted threats that may evade standard perimeter defenses.
Threat: 32-bit Total URLs: 30 Active URLs: 29
| URL | Status | Threat | Date Added |
|---|---|---|---|
hxxp://42.235.94.77:54061/i | online | malware_download | 2026-08-10 |
hxxp://42.235.94.77:54061/bin.sh | online | malware_download | 2026-08-10 |
hxxp://66.8.135.142:50647/i | online | malware_download | 2026-08-10 |
hxxp://112.198.138.178:59015/bin.sh | online | malware_download | 2026-08-10 |
hxxp://123.8.90.13:33466/i | online | malware_download | 2026-08-10 |
hxxp://66.8.135.142:50647/bin.sh | online | malware_download | 2026-08-10 |
hxxp://182.127.103.153:37513/bin.sh | online | malware_download | 2026-08-10 |
hxxp://221.205.10.123:45052/i | online | malware_download | 2026-08-10 |
hxxp://39.77.117.255:35209/i | online | malware_download | 2026-08-10 |
hxxp://221.205.10.123:45052/bin.sh | online | malware_download | 2026-08-10 |
hxxp://124.235.239.199:45573/i | online | malware_download | 2026-08-10 |
hxxp://182.123.209.29:47837/i | online | malware_download | 2026-08-10 |
hxxp://39.77.117.255:35209/bin.sh | online | malware_download | 2026-08-10 |
hxxp://182.113.31.73:46065/i | online | malware_download | 2026-08-10 |
hxxp://115.55.57.227:57005/bin.sh | online | malware_download | 2026-08-10 |
hxxp://124.235.239.199:45573/bin.sh | online | malware_download | 2026-08-10 |
hxxp://42.234.166.234:40751/bin.sh | online | malware_download | 2026-08-10 |
hxxp://119.116.20.47:46175/bin.sh | online | malware_download | 2026-08-10 |
hxxp://119.116.20.47:46175/i | online | malware_download | 2026-08-10 |
hxxp://183.153.126.58:36155/i | online | malware_download | 2026-08-10 |
hxxp://110.136.97.153:39448/i | online | malware_download | 2026-08-10 |
hxxp://115.63.51.94:48009/i | online | malware_download | 2026-08-10 |
hxxp://110.136.97.153:39448/bin.sh | online | malware_download | 2026-08-10 |
hxxp://115.56.147.226:56122/i | online | malware_download | 2026-08-10 |
hxxp://115.61.41.247:51273/i | online | malware_download | 2026-08-10 |
// Hunt for DNS resolution of URLhaus malicious domains
// Threat: 32-bit
let malicious_domains = dynamic(["115.61.41.247", "115.55.57.227", "66.8.135.142", "183.153.126.58", "182.123.209.29", "123.8.90.13", "39.77.117.255", "112.198.138.178", "182.127.103.153", "124.235.239.199", "78.25.149.153", "115.63.145.118", "42.235.94.77", "221.205.10.123", "110.136.97.153", "119.116.20.47", "182.113.31.73", "42.234.166.234", "112.248.106.46", "115.63.51.94", "115.56.147.226"]);
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(["115.61.41.247", "115.55.57.227", "66.8.135.142", "183.153.126.58", "182.123.209.29", "123.8.90.13", "39.77.117.255", "112.198.138.178", "182.127.103.153", "124.235.239.199", "78.25.149.153", "115.63.145.118", "42.235.94.77", "221.205.10.123", "110.136.97.153", "119.116.20.47", "182.113.31.73", "42.234.166.234", "112.248.106.46", "115.63.51.94", "115.56.147.226"]);
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 5 specific false positive scenarios for the URLhaus: 32-bit Malicious URLs detection rule, along with targeted filters or exclusions to mitigate noise in an enterprise environment:
Legacy Admin Tooling & Reporting Dashboards
10.50.x.x) destined for known internal FQDNs (e.g., *.corp.internal, dashboard.solutions.local). Additionally, exclude URLs containing specific benign query parameters like ?sessionid= or ?report_id= that are characteristic of these legacy tools.Scheduled 32-bit Backup and Sync Agents
01:00 to 05:00) for processes identified as backup services (VeeamAgent.exe, AcronisBackupService.exe). Alternatively,