Threats Tagged 't1069.003'

Multiple cloud accounts have been compromised through passkey-themed social engineering campaigns since May 2026. Attackers impersonate IT helpdesk staff via phone calls or SMS, directing victims to phishing sites that mimic Microsoft sign-in pages. After obtaining credentials through adversary-in-the-middle or device code authentication flows, attackers establish persistence by adding unauthorized MFA methods. They then conduct extensive reconnaissance using Microsoft Graph API to map users, groups, permissions, and resources. The intrusion culminates in high-volume data collection from SharePoint, OneDrive, and Exchange using automated tools, with exfiltration occurring over hours or days at controlled rates to avoid detection.

A supply chain attack targeting the npm ecosystem was identified involving 14 malicious packages published under the alias vpmdhaj. These packages typosquat well-known OpenSearch, ElasticSearch, and DevOps libraries, executing malicious payloads through npm lifecycle hooks during installation. The attack deploys a two-stage credential harvesting operation that targets AWS credentials, HashiCorp Vault tokens, GitHub Actions secrets, and npm publish tokens. The malware queries AWS Instance Metadata Service, ECS task metadata, and enumerates AWS Secrets Manager across multiple regions. Two stager variants were observed: an HTTP-based C2 beacon and a stealthier version abusing the legitimate Bun runtime. The stolen credentials enable cloud lateral movement and downstream supply chain attacks through compromised npm maintainer identities, specifically targeting developers working with cloud and CI/CD infrastructure.

Microsoft identified an active supply chain attack targeting the @antv npm package ecosystem. A threat actor compromised an @antv maintainer account and published malicious versions of widely used data-visualization packages, affecting libraries like echarts-for-react with over 1 million weekly downloads. The attack propagates through dependency chains into CI/CD pipelines and cloud workloads. A 499 KB obfuscated JavaScript payload executes silently during npm install, specifically designed to steal credentials from GitHub Actions environments. Key capabilities include multi-platform credential theft (GitHub, AWS, HashiCorp Vault, npm, Kubernetes, 1Password), GitHub Action Runner process memory scraping, privilege escalation, dual-channel data exfiltration, and SLSA provenance forgery. The payload targets CI/CD environments deliberately, with over 2,200 compromised repositories observed. GitHub responded by removing 640 malicious packages and invalidating 61,274 npm tokens.

Microsoft Incident Response researchers identified Storm-2755, a financially motivated threat actor conducting payroll pirate attacks against Canadian users. The campaign uses malvertising and SEO poisoning on generic search terms like "Office 365" to lure victims to a fraudulent sign-in page. Through adversary-in-the-middle techniques, the actor captures authentication tokens and session cookies, bypassing MFA protections. Storm-2755 maintains persistence using Axios HTTP client to replay stolen tokens, then conducts discovery for payroll and HR contacts. The actor impersonates compromised users to socially engineer HR staff or directly manipulates payroll systems like Workday. Malicious inbox rules hide correspondence from victims. Attacks resulted in direct financial losses through redirected salary payments to attacker-controlled bank accounts.

MediumCampaignCanada#malvertising#credential phishing#cve-2025-27152