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ThreatFox: ClearFake IOCs

ioc-hunt HIGH ThreatFox
DnsEvents
iocjs-clearfakethreatfox
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 ThreatFox →
Retrieved: 2026-08-11T11:00:00Z · Confidence: high

Hunt Hypothesis

This hunt detects adversary activity by correlating Azure Sentinel logs against known Indicators of Compromise (IOCs) from the ClearFake malware campaign to identify early-stage infections or lateral movement attempts. Proactive hunting for these specific IOCs is critical because ClearFake represents a sophisticated threat actor capable of evading traditional signature-based defenses, requiring active investigation to prevent potential data exfiltration or system compromise within the cloud environment.

IOC Summary

Malware Family: ClearFake Total IOCs: 44 IOC Types: domain

TypeValueThreat TypeFirst SeenConfidence
domainfnwaiz.mitolyn-us-en.uspayload_delivery2026-08-11100%
domainmitolyn-us-en.uspayload_delivery2026-08-11100%
domain8k2uejd4.buzzpayload_delivery2026-08-11100%
domain5tjej8k8yd.buzzpayload_delivery2026-08-11100%
domain1rtwg8k8ud.buzzpayload_delivery2026-08-11100%
domainovgkkdx.ignaitra.uspayload_delivery2026-08-11100%
domainwazrhp.web-neuroxen.compayload_delivery2026-08-11100%
domainignaitra.uspayload_delivery2026-08-11100%
domainweb-neuroxen.compayload_delivery2026-08-11100%
domainma8or18p.en-us-ignitraa.compayload_delivery2026-08-11100%
domaincoachingsystem.espayload_delivery2026-08-1190%
domainenergyrevolutionsystem.orgpayload_delivery2026-08-11100%
domainlfncbj.usa--sightfresh.compayload_delivery2026-08-11100%
domainh9wjuhba.greaternewzionbc.orgpayload_delivery2026-08-11100%
domainvfepwox.hyptoburn.compayload_delivery2026-08-11100%
domainie793b69.eng--slimsounds.compayload_delivery2026-08-11100%
domainhyptoburn.compayload_delivery2026-08-11100%
domainusasightfresh.compayload_delivery2026-08-11100%
domainrkbqja.us-us-us-sightfresh.compayload_delivery2026-08-11100%
domainqvzuvdx.hypatoburn.compayload_delivery2026-08-11100%
domainhypatoburn.compayload_delivery2026-08-11100%
domainus-us-us-sightfresh.compayload_delivery2026-08-11100%
domainscheiwiller-motos.chpayload_delivery2026-08-1190%
domaincadltmk.gutdrops-us-eng.compayload_delivery2026-08-11100%
domaingutdrops-us-eng.compayload_delivery2026-08-11100%

KQL: Domain Hunt

// Hunt for DNS queries to known malicious domains
// Source: ThreatFox - ClearFake
let malicious_domains = dynamic(["fnwaiz.mitolyn-us-en.us", "mitolyn-us-en.us", "8k2uejd4.buzz", "5tjej8k8yd.buzz", "1rtwg8k8ud.buzz", "ovgkkdx.ignaitra.us", "wazrhp.web-neuroxen.com", "ignaitra.us", "web-neuroxen.com", "ma8or18p.en-us-ignitraa.com", "coachingsystem.es", "energyrevolutionsystem.org", "lfncbj.usa--sightfresh.com", "h9wjuhba.greaternewzionbc.org", "vfepwox.hyptoburn.com", "ie793b69.eng--slimsounds.com", "hyptoburn.com", "usasightfresh.com", "rkbqja.us-us-us-sightfresh.com", "qvzuvdx.hypatoburn.com", "hypatoburn.com", "us-us-us-sightfresh.com", "scheiwiller-motos.ch", "cadltmk.gutdrops-us-eng.com", "gutdrops-us-eng.com", "energyrevolutionsystem.net", "hotrum.us-eng-sightfresh.com", "us-eng-sightfresh.com", "hzydyub.gutdrops-store.com", "gutdrops-store.com", "vxcgzz.us-en-us-sightfresh.com", "us-en-us-sightfresh.com", "tuko2n3j.graphicstabletreviews.com", "derovj.us-en-us-neuroxen.com", "dqjxvqn.gut--drops.com", "ijyzvm.shop-sightfresh.com", "eqtatpq.go-neuroxen.com", "7zcef54a.eng-usa-goldalign.com", "myzxeb.shop-neuroxen.com", "pmszxzb.fungame777.co", "byy3qdk9.rsfoodproducts.com", "agioty.grannygshemporium.com", "wlwjxpc.finkfamilyautomotive.com", "xhlzvk.goldalignn.com"]);
DnsEvents
| where Name has_any (malicious_domains)
| project TimeGenerated, Computer, Name, IPAddresses, QueryType
| order by TimeGenerated desc

Required Data Sources

Sentinel TableNotes
DnsEventsEnsure this data connector is enabled

References

False Positive Guidance

Here are specific false positive scenarios and corresponding filters for the ThreatFox: ClearFake IOCs detection rule in an enterprise environment:

Original source: https://threatfox.abuse.ch/browse/malware/js.clearfake/