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.

Attacks/Breaches

7/6/2020
05:05 PM
Connect Directly
Twitter
LinkedIn
RSS
E-Mail
50%
50%

North Korea's Lazarus Group Diversifies Into Card Skimming

Since at least May 2019, the state-sponsored threat actor has stolen card data from dozens of retailers, including major US firms.

North Korea's constantly evolving Lazarus Group appears to have diversified into skimming online payment cards over the past year or so.

Sansec, a Netherlands-based security firm, says its researchers have found evidence tying the advanced persistent threat (APT) group to attacks on the websites of several large US retailers going back to at least May 2019. In each of the attacks, the threat actors planted malicious code for capturing payment card data entered into checkout pages by people paying for purchases on these sites.

In a report Monday, Sansec says it has so far not been able to determine how the attackers managed to breach these sites initially in order to plant the card-skimming code. But data from the attacks shows Lazarus Group members used the website of an Italian modeling agency, a vintage music store in Iran, a family-run bookstore in New Jersey, and other sites to funnel stolen payment card data to Dark Web market places. The sites — which were running WordPress — were previously compromised and repurposed to distribute the stolen assets, Sansec says in its report.

"They used these compromised WordPress sites as exfiltration proxies," says Willem de Groot, a security researcher at Sansec. "During store purchases, card data was logged and sent to these exfiltration nodes." The purpose of these proxies is to hide the true destination of the stolen assets, he notes.

In its report, Sansec says it has identified "multiple, independent links between recent skimming activity and previously documented North Korean hacking operations." Among the pieces of evidence are several IP addresses and domains that have been previously associated with the Lazarus Group.

The Sansec report identified jewelry and fashion accessories firm Claire's as one of the organizations impacted in the attacks. But it did not offer any information on other victims or the volume of card data that Lazarus Group might have stolen so far. According to de Groot, the intelligence Sansec has gathered suggests the APT group infiltrated at least a "few dozen stores with several large US retailers among them."

In attacks involving some of the larger brands, Lazarus Group members used dedicated exfiltration domains — rather than the compromised WordPress websites — to funnel stolen card data to underground markets, de Groot says.

"It is clear that a lot of preparation and effort was invested in setting up these later campaigns," he says. "This contrasts with Magecart activity over the last few years, which was largely opportunistic."

Constantly Evolving Tactics
The Lazarus Group (aka Hidden Cobra) is a well-known APT group that the US government and others have described as acting on behalf of North Korea's (DPRK) government. In recent years, the group has been associated with a string of high-profile attacks, including one on Sony Pictures in 2014, the WannaCry ransomware attacks, and another on the Bank of Bangladesh, which netted it some $81 million. In recent years the group has also been associated with numerous cryptocurrency-mining campaigns.

"Over the years DPRK actors have demonstrated their ability to use instruments and techniques that are not usually related to APT operations," says Jim Walter, threat researcher at SentinelOne. As examples, he points to Lazarus Group's cryptomining and its adoption of commodity malware and other common off the shelf tools. 

"In SentinelLabs, we revealed in the past how DPRK actors are working with commercial cybercrime tools, like TrickBot Anchor Project," he says.  

Many believe that Lazarus Group's financially motivated attacks are designed to generate money for the sanction-hit North Korean government's nuclear program.

"Traditionally, seeing a state-sponsored group carry out a card-skimming campaign might seem curious, especially if it was a wealthier nation," says Hank Schless, senior manager of security solutions at Lookout. "However, North Korea is so heavily sanctioned and struggles economically, so it will clearly use whatever tactics it can to get access to funds."   

Brandon Hoffman, CISO, and head of security strategy at Netenrich, says the Lazarus Group's move further into the realm of cybercrime is no surprise given its past activities.

"From their perspective, if they have the tools and skills to perform advanced persistent threat activity, why wouldn't they use it to fill the coffers as well?" he says.

Related Content:

 

Jai Vijayan is a seasoned technology reporter with over 20 years of experience in IT trade journalism. He was most recently a Senior Editor at Computerworld, where he covered information security and data privacy issues for the publication. Over the course of his 20-year ... View Full Bio
 

Recommended Reading:

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
COVID-19: Latest Security News & Commentary
Dark Reading Staff 8/3/2020
Pen Testers Who Got Arrested Doing Their Jobs Tell All
Kelly Jackson Higgins, Executive Editor at Dark Reading,  8/5/2020
New 'Nanodegree' Program Provides Hands-On Cybersecurity Training
Nicole Ferraro, Contributing Writer,  8/3/2020
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Current Issue
Special Report: Computing's New Normal, a Dark Reading Perspective
This special report examines how IT security organizations have adapted to the "new normal" of computing and what the long-term effects will be. Read it and get a unique set of perspectives on issues ranging from new threats & vulnerabilities as a result of remote working to how enterprise security strategy will be affected long term.
Flash Poll
The Changing Face of Threat Intelligence
The Changing Face of Threat Intelligence
This special report takes a look at how enterprises are using threat intelligence, as well as emerging best practices for integrating threat intel into security operations and incident response. Download it today!
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2020-15058
PUBLISHED: 2020-08-07
Lindy 42633 4-Port USB 2.0 Gigabit Network Server 2.078.000 devices allow an attacker on the same network to elevate privileges because the administrative password can be discovered by sniffing unencrypted UDP traffic.
CVE-2020-15059
PUBLISHED: 2020-08-07
Lindy 42633 4-Port USB 2.0 Gigabit Network Server 2.078.000 devices allow an attacker on the same network to bypass authentication via a web-administration request that lacks a password parameter.
CVE-2020-15060
PUBLISHED: 2020-08-07
Lindy 42633 4-Port USB 2.0 Gigabit Network Server 2.078.000 devices allow an attacker on the same network to conduct persistent XSS attacks by leveraging administrative privileges to set a crafted server name.
CVE-2020-15061
PUBLISHED: 2020-08-07
Lindy 42633 4-Port USB 2.0 Gigabit Network Server 2.078.000 devices allow an attacker on the same network to denial-of-service the device via long input values.
CVE-2020-15062
PUBLISHED: 2020-08-07
DIGITUS DA-70254 4-Port Gigabit Network Hub 2.073.000.E0008 devices allow an attacker on the same network to elevate privileges because the administrative password can be discovered by sniffing unencrypted UDP traffic.