Threat actors are increasingly improving their tactics to make suspicious emails look like legitimate email notifications to potential victims, deploying techniques that impersonate internally sent emails from executive team members. While this technique is not new, the adoption of AI has enabled threat actors to improve their campaign templates and construct emails tailored to their recipients. Additionally, threat actors are incorporating multiple techniques within the same email to improve the overall narrative further.
In this blog, we will discuss a recent campaign observed using third-party email delivery infrastructure to send out over a million financial fraud scam emails that displayed multiple indicators consistent with the use of generative AI during email template creation. The threat actor impersonated CEOs of multiple target companies, attempting to convince accounts payable departments of the same companies to process an Automated Clearing House (ACH) payment of nearly $50,000. To add legitimacy, the actor included a forwarded email thread (and a fabricated invoice) between the impersonated CEO and ServiceNow (which was also being impersonated).
Read more…
Source: Microsoft News
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- RondoDox: From Targeting Pwn2Own Vulnerabilities to Shotgunning Exploits
October 9, 2025
The Trend Zero Day Initiative (ZDI) Threat Hunting and Trend Research teams have identified a significant RondoDox botnet campaign that targets a wide range of internet-exposed infrastructure. This campaign consists of over 50 exploits, including unpatched router flaws across over 30 vendors, targeting vulnerabilities found in routers, digital video recorders (DVRs), network video recorders (NVRs), CCTV ...
- Inside Russian Market: Uncovering the Botnet Empire
October 9, 2025
The online cybercrime marketplace, Russian Market, has evolved from selling Remote Desktop Protocol (RDP) access to becoming one of the most active underground hubs for information-stealing malware logs, where stolen user credentials are traded daily. Each compromised login represents a potential gateway into corporate systems, enabling threat actors to launch credential-based attacks that put businesses, governments, ...
- Weaponized AI Assistants & Credential Thieves
October 9, 2025
Just weeks after the s1ngularity attack weaponized AI assistants, the NPM ecosystem was rocked by a far more dangerous threat: a self-propagating worm named Shai-Hulud. In a sobering demonstration of this rapid escalation in attack techniques, the worm has compromised over 187 packages, including several developer-facing tools published by cybersecurity firm CrowdStrike. These two distinct events ...
- Hack on Japan’s biggest brewer renews concerns over cyberattack readiness
October 8, 2025
Japan’s favorite beer brand is reeling from a cyberattack that paralyzed its production last week. Its factories have started brewing again, and some truckloads of beer are leaving its warehouses, but the attack has spotlighted the poor cybersecurity readiness among top-tier companies in the world’s fifth-largest economy. On Tuesday, Qilin, a ransomware group with a track ...
- Security bug in India’s income tax portal exposed taxpayers’ sensitive data
October 7, 2025
The Indian government’s tax authority has fixed a security flaw in its income tax filing portal that was exposing sensitive taxpayers’ data, TechCrunch has exclusively learned and confirmed with authorities. The flaw, discovered in September by a pair of security researchers Akshay CS and “Viral,” allowed anyone who was logged into the income tax department’s e-Filing ...
- Oracle patches actively exploited zero-day vulnerability in E-Business Suite
October 6, 2025
Oracle has patched a critical vulnerability in E-Business Suite that was actively exploited in data theft attacks by the Clop group. This is a zero-day vulnerability, registered as CVE-2025-61882, which allows remote code execution on affected systems without authentication. The flaw is located in the Concurrent Processing component of Oracle E-Business Suite, in the integration with ...