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ThreatFox: Unknown Loader IOCs

ioc-hunt HIGH ThreatFox
DnsEvents
iocthreatfoxunknown_loader
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: 2026-07-11T11:00:01Z · Confidence: high

Hunt Hypothesis

This hunt targets adversary behavior where malicious processes execute unknown loaders to establish persistence or deliver payloads, as indicated by the 36 specific IOCs from ThreatFox. Proactively hunting for these indicators in Azure Sentinel is critical because Unknown Loader activity often precedes advanced persistent threats that may bypass standard signature-based defenses due to their polymorphic nature.

IOC Summary

Malware Family: Unknown Loader Total IOCs: 36 IOC Types: domain

TypeValueThreat TypeFirst SeenConfidence
domainai-trading.propayload_delivery2026-07-11100%
domainapp.blackroad.iopayload_delivery2026-07-11100%
domainbahrjtdryj843gsn.compayload_delivery2026-07-11100%
domainblindboxmall.compayload_delivery2026-07-11100%
domainbu383.krify.copayload_delivery2026-07-11100%
domaineesa.surfpayload_delivery2026-07-11100%
domaingrisor.copayload_delivery2026-07-11100%
domaingrowingkey.netpayload_delivery2026-07-11100%
domainhassanalsaadawi.compayload_delivery2026-07-11100%
domainilovedogsinc.compayload_delivery2026-07-11100%
domainittenz.compayload_delivery2026-07-11100%
domainittenz.ptpayload_delivery2026-07-11100%
domainittenz.rupayload_delivery2026-07-11100%
domainjadelegance.compayload_delivery2026-07-11100%
domainleadingmoverz.compayload_delivery2026-07-11100%
domainnovosuporte.com.brpayload_delivery2026-07-11100%
domainourluckytiger.compayload_delivery2026-07-11100%
domainplayersgoodluckprayer.compayload_delivery2026-07-11100%
domainpuertoplatalocal.compayload_delivery2026-07-11100%
domainrajigaspro.compayload_delivery2026-07-11100%
domainrentalsrockingham.com.aupayload_delivery2026-07-11100%
domainsinhaghephuquoc.compayload_delivery2026-07-11100%
domainspectrumlearnings.compayload_delivery2026-07-11100%
domaintauma.espayload_delivery2026-07-11100%
domainthefamilyofficeinsider.orgpayload_delivery2026-07-11100%

KQL: Domain Hunt

// Hunt for DNS queries to known malicious domains
// Source: ThreatFox - Unknown Loader
let malicious_domains = dynamic(["ai-trading.pro", "app.blackroad.io", "bahrjtdryj843gsn.com", "blindboxmall.com", "bu383.krify.co", "eesa.surf", "grisor.co", "growingkey.net", "hassanalsaadawi.com", "ilovedogsinc.com", "ittenz.com", "ittenz.pt", "ittenz.ru", "jadelegance.com", "leadingmoverz.com", "novosuporte.com.br", "ourluckytiger.com", "playersgoodluckprayer.com", "puertoplatalocal.com", "rajigaspro.com", "rentalsrockingham.com.au", "sinhaghephuquoc.com", "spectrumlearnings.com", "tauma.es", "thefamilyofficeinsider.org", "tradecouncil.org", "viewaccess-mangmet.com", "wp13272768.server-he.de", "configservermu.net", "fzpg-nn.ru", "main.xicos.pt", "kartina-na-zakaz.com", "ortho-me.at", "stptest1.com", "thestickmanlasvegas.comthi", "xn--e1acm1a.xn--p1ai"]);
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 for the ThreatFox: Unknown Loader IOCs rule in an enterprise environment, including suggested filters and exclusions:

Original source: https://threatfox.abuse.ch/browse/malware/unknown_loader/