Gabagool Phishing Campaign Exploits Cloudflare R2 to Evade Security

A sophisticated phishing campaign named "Gabagool" has recently been discovered, specifically targeting corporate and government employees by leveraging Cloudflare’s R2 storage service to host malicious content. Uncovered by the TRAC Labs team, this campaign cleverly exploits Cloudflare’s trusted reputation to evade most security filters. The phishing attack typically begins with compromised mailboxes sending seemingly harmless emails to other employees. These emails often contain an image disguised as a document, which includes a malicious URL-shortened link.

Upon users clicking the link, they are redirected through several file-sharing platforms before ultimately landing on a Cloudflare R2 bucket page. The URL format of the final page clearly indicates its storage on Cloudflare’s infrastructure, making it appear legitimate and trustworthy. Gabagool employs highly sophisticated methods to detect and avoid bot activity, such as using webdriver checks, mouse movement detection, cookie tests, and rapid interaction detection. If the system suspects bot activity, the user is redirected to a legitimate domain. Otherwise, after a short delay, the phishing page is loaded, which utilizes AES encryption to protect the server address and collects user credentials.

These credentials are then stealthily sent to the attacker’s server, identified as o365.alnassers.net for harvesting. Notably, Gabagool possesses the capability to handle various multi-factor authentication (MFA) methods, including PhoneAppNotification, PhoneAppOTP, OneWaySMS, TwoWayVoiceMobile, and TwoWayVoiceOffice. This advanced capability potentially allows attackers to bypass MFA protections, posing a significant threat to organizations employing these security measures. To counter Gabagool attacks, security experts recommend monitoring for unusual connections to Cloudflare R2 buckets and watching for traffic to known malicious servers like o365.alnassers.net.

Additionally, security teams should review any network traffic data sent to suspicious servers and use public URLScan queries to identify potential threats. The Gabagool phishing campaign highlights an overarching trend in the increasing sophistication of phishing attacks utilizing trusted infrastructures to bypass security protocols. Organizations must remain vigilant and continuously adapt their security measures to protect against such advanced threats. With detailed technical analysis and practical recommendations, security teams can identify and mitigate these attacks. The primary takeaway is that the use of reputable services like Cloudflare’s R2 storage for hosting malicious content represents a significant challenge for cybersecurity defenses, requiring continuous, proactive monitoring and adaptive security strategies.

Explore more

How Can XOS Pulse Transform Your Customer Experience?

This guide aims to help organizations elevate their customer experience (CX) management by leveraging XOS Pulse, an innovative AI-driven tool developed by McorpCX. Imagine a scenario where a business struggles to retain customers due to inconsistent service quality, losing ground to competitors who seem to effortlessly meet client expectations. This challenge is more common than many realize, with studies showing

How Does AI Transform Marketing with Conversionomics Updates?

Setting the Stage for a Data-Driven Marketing Era In an era where digital marketing budgets are projected to surpass $700 billion globally by 2027, the pressure to deliver precise, measurable results has never been higher, and marketers face a labyrinth of challenges. From navigating privacy regulations to unifying fragmented consumer touchpoints across diverse media channels, the complexity is daunting, but

AgileATS for GovTech Hiring – Review

Setting the Stage for GovTech Recruitment Challenges Imagine a government contractor racing against tight deadlines to fill critical roles requiring security clearances, only to be bogged down by outdated hiring processes and a shrinking pool of qualified candidates. In the GovTech sector, where federal regulations and talent scarcity create formidable barriers, the stakes are high for efficient recruitment. Small and

Trend Analysis: Global Hiring Challenges in 2025

Imagine a world where nearly 70% of global employers are uncertain about their hiring plans due to an unpredictable economy, forcing businesses to rethink every recruitment decision. This stark reality paints a vivid picture of the complexities surrounding talent acquisition in today’s volatile global market. Economic turbulence, combined with evolving workplace expectations, has created a challenging landscape for organizations striving

Automation Cuts Insurance Claims Costs by Up to 30%

In this engaging interview, we sit down with a seasoned expert in insurance technology and digital transformation, whose extensive experience has helped shape innovative approaches to claims handling. With a deep understanding of automation’s potential, our guest offers valuable insights into how digital tools can revolutionize the insurance industry by slashing operational costs, boosting efficiency, and enhancing customer satisfaction. Today,