A risk actor is abusing HubSpot’s Free Kind Builder service to craft credential-harvesting phishing pages, based on Palo Alto Networks’ Unit 42.
The marketing campaign has focused at the very least 20,000 customers at European corporations within the automotive, chemical, and industrial compound manufacturing sectors. The assaults are designed to steal credentials to be able to compromise victims’ Microsoft Azure cloud providers.
“The phishing emails contained both an hooked up Docusign-enabled PDF file or an embedded HTML hyperlink directing victims to malicious HubSpot Free Kind Builder hyperlinks embedded inside phishing emails,” Unit 42 explains.
“HubSpot is a cloud-based buyer relationship administration (CRM), advertising, gross sales, and content material administration system (CMS) operation platform. Working with HubSpot safety groups, we decided that HubSpot was not compromised throughout this phishing marketing campaign, nor have been the Free Kind Builder hyperlinks delivered to focus on victims by way of HubSpot infrastructure.”
The attackers focused corporations in France, Germany, and the UK, and efficiently compromised a number of victims. The risk actors used VPNs and digital non-public providers (VPSs) to seem as if they have been positioned in the identical international locations because the focused organizations.
“The phishing marketing campaign was hosted throughout varied providers, together with Bulletproof VPS hosts,” the researchers notice. “It is a internet hosting service identified for offering a excessive diploma of anonymity, lax enforcement of authorized rules, and resistance to being shut down. They’re typically related to malicious operations, together with phishing operations.
One of many extra attention-grabbing findings for us was the infrastructure clusters we analyzed, from the compromised and focused customers we recognized. By analyzing telemetry collected from the victims, we discovered that the risk actor used the identical internet hosting infrastructure for a number of focused phishing operations. In addition they used this infrastructure for accessing compromised Microsoft Azure tenants through the account takeover operation.”
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Unit 42 has the story.