Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Threat Intelligence

9/30/2020
01:50 PM
50%
50%

Phishing Attack Targets Microsoft 365 Users With Netflix & Amazon Lures

Cyberattacker TA2552 primarily targets Spanish speakers with messages that leverage a narrow range of themes and popular brands.

Security researchers have been tracking a phishing campaign that abuses Microsoft Office 365 third-party application access to obtain specific resources from victims' accounts. The attacker, dubbed TA2552, mostly uses Spanish-language lures and a narrow range of themes and brands.

Related Content:

Microsoft: Ransomware & Nation-State Attacks Rise, Get More Sophisticated

State of Endpoint Security: How Enterprises Are Managing Endpoint Security Threats

New on The Edge: Securing Slack: 5 Tips for Safer Messaging, Collaboration

These attacks have targeted organizations with a global presence but seem to choose victims who likely speak Spanish, report Proofpoint researchers who have been watching the threat. This activity appeared on the team's radar in January 2020 but could date back to August 2019.

The campaigns follow a similar flow: When a recipient clicks the link, they're redirected to the authentic Microsoft third-party application consent page at login[.]Microsoft[.]com and asked to grant or deny the requested permissions. If the browser isn't authenticated to Microsoft 365, the user is prompted to do so. When they grant consent, the third-party application will be able to access the currently authenticated Microsoft 365 account, researchers explain in a blog post.

With respect to these campaigns, the list of permissions allowed read-only access to data such as the user's contacts, profile, and mail, they say. If the user denies consent, the browser will redirect to an attacker-controlled page, giving the attacker a chance to try and trick them again.

"All permissions we've observed requested thus far have been read-only," the researchers explain. "While that might seem relatively benign, even allowing an actor read access to a user's inbox and contacts can have significant regulatory and privacy consequences." They stress the importance of understanding the risk of permissions requested by third-party apps.

The attack campaign regularly uses messages with Mexican tax and government themes; however, it has branched out to impersonate popular consumer brands. In July, it launched campaigns impersonating Netflix Mexico and Amazon Prime Mexico, researchers report. 

Read the full writeup for more information.

Dark Reading's Quick Hits delivers a brief synopsis and summary of the significance of breaking news events. For more information from the original source of the news item, please follow the link provided in this article. View Full Bio
 

Recommended Reading:

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
More SolarWinds Attack Details Emerge
Kelly Jackson Higgins, Executive Editor at Dark Reading,  1/12/2021
Vulnerability Management Has a Data Problem
Tal Morgenstern, Co-Founder & Chief Product Officer, Vulcan Cyber,  1/14/2021
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
2020: The Year in Security
Download this Tech Digest for a look at the biggest security stories that - so far - have shaped a very strange and stressful year.
Flash Poll
Assessing Cybersecurity Risk in Today's Enterprises
Assessing Cybersecurity Risk in Today's Enterprises
COVID-19 has created a new IT paradigm in the enterprise -- and a new level of cybersecurity risk. This report offers a look at how enterprises are assessing and managing cyber-risk under the new normal.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2021-20619
PUBLISHED: 2021-01-19
Cross-site scripting vulnerability in GROWI (v4.2 Series) versions prior to v4.2.3 allows remote attackers to inject an arbitrary script via unspecified vectors.
CVE-2020-29450
PUBLISHED: 2021-01-19
Affected versions of Atlassian Confluence Server and Data Center allow remote attackers to impact the application's availability via a Denial of Service (DoS) vulnerability in the avatar upload feature. The affected versions are before version 7.2.0.
CVE-2020-36192
PUBLISHED: 2021-01-18
An issue was discovered in the Source Integration plugin before 2.4.1 for MantisBT. An attacker can gain access to the Summary field of private Issues (either marked as Private, or part of a private Project), if they are attached to an existing Changeset. The information is visible on the view.php p...
CVE-2020-36193
PUBLISHED: 2021-01-18
Tar.php in Archive_Tar through 1.4.11 allows write operations with Directory Traversal due to inadequate checking of symbolic links, a related issue to CVE-2020-28948.
CVE-2020-7343
PUBLISHED: 2021-01-18
Missing Authorization vulnerability in McAfee Agent (MA) for Windows prior to 5.7.1 allows local users to block McAfee product updates by manipulating a directory used by MA for temporary files. The product would continue to function with out-of-date detection files.