URLhaus: Mozi Malicious URLs

Hunt Hypothesis

This hunt detects adversary activity involving the Mozi malware family by identifying traffic to a curated set of 54 known malicious URLs that facilitate command-and-control or payload delivery. A SOC team should proactively search for these indicators in Azure Sentinel to rapidly isolate compromised endpoints and prevent lateral movement before the malware establishes persistence within the network.

IOC Summary

Threat: Mozi Total URLs: 54 Active URLs: 54

URL	Status	Threat	Date Added
`hxxp://42.227.196.74:33263/bin.sh`	online	malware_download	2026-08-01
`hxxp://42.224.98.79:47231/i`	online	malware_download	2026-08-01
`hxxp://112.239.99.221:35318/i`	online	malware_download	2026-08-01
`hxxp://182.121.70.96:45574/i`	online	malware_download	2026-08-01
`hxxp://125.43.231.75:43877/i`	online	malware_download	2026-08-01
`hxxp://27.204.192.233:51509/i`	online	malware_download	2026-08-01
`hxxp://222.141.246.180:60663/i`	online	malware_download	2026-08-01
`hxxp://125.45.9.88:38960/i`	online	malware_download	2026-08-01
`hxxp://123.4.251.183:32911/i`	online	malware_download	2026-08-01
`hxxp://115.53.10.95:34295/i`	online	malware_download	2026-08-01
`hxxp://115.58.134.187:36959/i`	online	malware_download	2026-08-01
`hxxp://42.224.156.56:38226/i`	online	malware_download	2026-08-01
`hxxp://110.38.211.139:35533/i`	online	malware_download	2026-08-01
`hxxp://27.215.176.113:37468/i`	online	malware_download	2026-08-01
`hxxp://202.163.107.242:39612/i`	online	malware_download	2026-08-01
`hxxp://182.126.93.175:34207/i`	online	malware_download	2026-08-01
`hxxp://123.12.238.140:54462/i`	online	malware_download	2026-08-01
`hxxp://115.62.183.115:49714/i`	online	malware_download	2026-08-01
`hxxp://42.238.129.159:52047/i`	online	malware_download	2026-08-01
`hxxp://123.5.174.141:51427/i`	online	malware_download	2026-08-01
`hxxp://115.56.151.12:53348/i`	online	malware_download	2026-08-01
`hxxp://42.226.69.176:50956/i`	online	malware_download	2026-08-01
`hxxp://125.41.95.51:56036/i`	online	malware_download	2026-08-01
`hxxp://60.189.186.105:39631/i`	online	malware_download	2026-08-01
`hxxp://42.231.88.60:42892/i`	online	malware_download	2026-08-01

KQL: Url Dns Hunt

// Hunt for DNS resolution of URLhaus malicious domains
// Threat: Mozi
let malicious_domains = dynamic(["115.62.183.115", "115.53.10.95", "125.45.9.88", "42.238.129.159", "27.204.192.233", "222.141.246.180", "123.5.174.141", "202.163.107.242", "110.38.211.139", "123.12.238.140", "112.239.99.221", "125.43.231.75", "219.157.54.205", "42.224.98.79", "115.56.151.12", "125.41.95.51", "219.157.52.228", "42.226.69.176", "182.116.14.213", "42.224.156.56", "115.58.134.187", "182.126.93.175", "182.121.70.96", "182.127.122.205", "60.189.186.105", "123.4.251.183", "42.227.196.74", "27.215.176.113", "219.155.228.18", "42.231.88.60"]);
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(["115.62.183.115", "115.53.10.95", "125.45.9.88", "42.238.129.159", "27.204.192.233", "222.141.246.180", "123.5.174.141", "202.163.107.242", "110.38.211.139", "123.12.238.140", "112.239.99.221", "125.43.231.75", "219.157.54.205", "42.224.98.79", "115.56.151.12", "125.41.95.51", "219.157.52.228", "42.226.69.176", "182.116.14.213", "42.224.156.56", "115.58.134.187", "182.126.93.175", "182.121.70.96", "182.127.122.205", "60.189.186.105", "123.4.251.183", "42.227.196.74", "27.215.176.113", "219.155.228.18", "42.231.88.60"]);
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 Table	Notes
`CommonSecurityLog`	Ensure this data connector is enabled
`DnsEvents`	Ensure this data connector is enabled

References

URLhaus

False Positive Guidance

Here are 3-5 specific false positive scenarios for the URLhaus: Mozi Malicious URLs detection rule, including suggested filters and exclusions tailored for an enterprise environment:

Scenario: Security Tool Telemetry & Update Checks
- Context: Endpoint Detection and Response (EDR) agents like CrowdStrike Falcon, Microsoft Defender for Endpoint, or SentinelOne frequently poll the urlhaus API or internal security gateways to fetch the latest Mozi threat intelligence feeds. These legitimate health checks often hit the exact malicious URL patterns defined in the rule, triggering alerts as “outbound connections” that look like infection indicators.
- Filter/Exclusion: Create a whitelist exclusion for the specific process names of your EDR agents (e.g., falcon.sys, MsMpEng.exe) when accessing domains ending in .urlhaus.abuse.ch or known internal threat intel gateways.
Scenario: Scheduled Admin Reporting & Compliance Scans
- Context: Automated compliance tools such as Qualys, Tenable.io, or custom PowerShell scripts running on a nightly schedule often perform vulnerability assessments against external security repositories. These jobs may query Mozi-tagged URLs to validate certificate chains or download baseline threat signatures, mimicking the behavior of an infected host browsing malicious links.
- Filter/Exclusion: Implement a time-based filter to suppress alerts generated by these specific service accounts (e.g., svc-compliance) between 02:00 and 04:00 UTC, or exclude traffic originating from dedicated compliance server IPs (e.g., the subnet 10.50.20.0/24).
Scenario: DevOps CI/CD Pipeline Artifact Downloads
- Context: In a modern enterprise using Jenkins, GitLab CI,