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ThreatFox: ClearFake IOCs

ioc-hunt HIGH ThreatFox
DeviceFileEventsDnsEvents
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: 2026-08-12T11:00:00Z · Confidence: high

Hunt Hypothesis

This hunt detects adversary activity involving known ClearFake indicators of compromise to identify potential infections or lateral movement within the environment. Proactively hunting for these specific IOCs in Azure Sentinel is critical because ClearFake represents a sophisticated threat actor whose early detection can prevent widespread data exfiltration and operational disruption.

IOC Summary

Malware Family: ClearFake Total IOCs: 72 IOC Types: sha256_hash, domain

TypeValueThreat TypeFirst SeenConfidence
domainsightfressh.compayload_delivery2026-08-12100%
domainnjlfltu.sight--fresh.compayload_delivery2026-08-12100%
domainxxltkb.slim-sounds.uspayload_delivery2026-08-12100%
domainsight--fresh.compayload_delivery2026-08-12100%
domainslim-sounds.uspayload_delivery2026-08-12100%
domainsightfreshusa.compayload_delivery2026-08-12100%
domainr6ud44az.eng-eng-slimsounds.compayload_delivery2026-08-12100%
sha256_hash554c2e2d6f9cf520e85640600ac90f9a0d3860019f66178ca1f07012f1fc5961payload2026-08-1290%
domaingqnkpa.slimsounds.orgpayload_delivery2026-08-12100%
domainxljgwes.sightfres.compayload_delivery2026-08-12100%
domainsightfres.compayload_delivery2026-08-12100%
domainslimsounds.orgpayload_delivery2026-08-12100%
domainkdnwrc.slimsounds.netpayload_delivery2026-08-12100%
domainslimsounds.netpayload_delivery2026-08-12100%
domainsightfreshshop.compayload_delivery2026-08-12100%
domain9ldui2xv.usa--sightfresh.compayload_delivery2026-08-12100%
domainmldasj.slim-sounds.compayload_delivery2026-08-12100%
domainslim-sounds.compayload_delivery2026-08-12100%
domainshop-tinnitrol.uspayload_delivery2026-08-12100%
domainqxaail.shop-tinnitrol.compayload_delivery2026-08-12100%
domainuwddobn.shop-sightfresh.uspayload_delivery2026-08-12100%
domainshop-tinnitrol.compayload_delivery2026-08-12100%
domainshop-sightfresh.uspayload_delivery2026-08-12100%
domainwkblxv.shop-thyrafemmebalance.compayload_delivery2026-08-12100%
domainzdbtyv.shop-thyrafemmebalance.compayload_delivery2026-08-12100%

KQL: Domain Hunt

// Hunt for DNS queries to known malicious domains
// Source: ThreatFox - ClearFake
let malicious_domains = dynamic(["sightfressh.com", "njlfltu.sight--fresh.com", "xxltkb.slim-sounds.us", "sight--fresh.com", "slim-sounds.us", "sightfreshusa.com", "r6ud44az.eng-eng-slimsounds.com", "gqnkpa.slimsounds.org", "xljgwes.sightfres.com", "sightfres.com", "slimsounds.org", "kdnwrc.slimsounds.net", "slimsounds.net", "sightfreshshop.com", "9ldui2xv.usa--sightfresh.com", "mldasj.slim-sounds.com", "slim-sounds.com", "shop-tinnitrol.us", "qxaail.shop-tinnitrol.com", "uwddobn.shop-sightfresh.us", "shop-tinnitrol.com", "shop-sightfresh.us", "wkblxv.shop-thyrafemmebalance.com", "zdbtyv.shop-thyrafemmebalance.com", "shop-thyrafemmebalance.com", "uqmvta.shop-theslimsplitsmethod.us", "shop-theslimsplitsmethod.us", "povuns.shop-synaptigen.com", "shop-synaptigen.com", "genomiq.shop-nitrilean.com", "ufhsqy.shop-sugarmute.com", "shop-nitrilean.com", "nhglus.shop-sugarmute.com", "nhapcode8k.com", "nhapcode8k.com", "gestisafe.ch", "8rncvwgu.us-en-us-neuroxen.com", "ftcfiu.shop-sugarmute.com", "shop-sugarmute.com", "jllzheu.shop-keyslimdrops.com", "shop-keyslimdrops.com", "i4vo8ukz.get-goldalign.com", "k2kk5k8k.vip", "calregistry.com", "inelloelectric.com", "irl7s8k.vip", "yyplhn.shop-slimsplits.us", "shop-slimsplits.us", "wemivqe.shop-gutdrops.us", "shop-gutdrops.us"]);
DnsEvents
| where Name has_any (malicious_domains)
| project TimeGenerated, Computer, Name, IPAddresses, QueryType
| order by TimeGenerated desc

KQL: Hash Hunt

// Hunt for files matching known malicious hashes
// Source: ThreatFox - ClearFake
let malicious_hashes = dynamic(["554c2e2d6f9cf520e85640600ac90f9a0d3860019f66178ca1f07012f1fc5961"]);
DeviceFileEvents
| where SHA256 in (malicious_hashes) or SHA1 in (malicious_hashes) or MD5 in (malicious_hashes)
| project Timestamp, DeviceName, FileName, FolderPath, SHA256, InitiatingProcessFileName
| order by Timestamp desc

Required Data Sources

Sentinel TableNotes
DeviceFileEventsEnsure this data connector is enabled
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/