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IOC Radar

Indicators are what attackers leave behind. Stolen credentials are what they arrive with.

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13 IOCs

Breaking the code: Multi-stage ‘code of conduct’ phishing campaign leads to AiTM token compromise

Microsoft Threat Intelligence
Microsoft Threat Intelligence
Published May 4, 2026Original Report

Excerpt

In this article Multi-step social engineering campaign leading to credential theft Mitigation and protection guidance Microsoft Defender detections Hunting queries Indicators of compromise Phishing campaigns continue to improve sophistication and refinement in blending social engineering, delivery and hosting infrastructure, and authentication abuse to remain effective against evolving security controls. A large-scale credential theft campaign observed by Microsoft Defender…

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Diamond Model

SOCIAL AXISTECHNOLOGY AXISADVERSARYunknownINFRASTRUCTUREharteprn.comcocinternal.comcompliance-protection…CAPABILITYunknownVICTIMunknown
Adversary
Infrastructure(5)
Capability
Victim

Indicators of Compromise

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13 indicators

TypeIndicatorConfidenceScoreFirst Seen
Emaildocumentviewer@na.businesshellosign.deHighScore 61/100First seen
Domainharteprn.comHighScore 61/100First seen
Emailm365premiumcommunications@cocinternal.comHighScore 61/100First seen
Domaincocinternal.comHighScore 61/100First seen
Domaincompliance-protectionoutlook.deHighScore 61/100First seen
SHA2565db1ecbbb2c90c51d81bda138d4300b90ea5eb2885cce1bd921d692214aecbc6MediumScore 55/100First seen
Emailnationalintegrity@harteprn.comHighScore 61/100First seen
Domainacceptable-use-policy-calendly.deHighScore 61/100First seen
SHA256b5a3346082ac566b4494e6175f1cd9873b64abe6c902db49bd4e8088876c9eadMediumScore 55/100First seen
Emailnationaladmin@gadellinet.comHighScore 61/100First seen
Domaingadellinet.comHighScore 61/100First seen
SHA25611420d6d693bf8b19195e6b98fedd03b9bcbc770b6988bc64cb788bfabe1a49dMediumScore 55/100First seen
Emailcocpostmaster@cocinternal.comHighScore 58/100First seen

IOC Relationship Graph

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