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

5/13/2019
06:20 PM
Connect Directly
Twitter
LinkedIn
RSS
E-Mail
50%
50%

Korean APT Adds Rare Bluetooth Device-Harvester Tool

ScarCruft has evolved into a skilled and resourceful threat group, new research shows.

ScarCruft, an advanced persistent threat group known for attacking organizations with links to the Korean peninsula, has become more dangerous.

An analysis of recent data associated with the group shows that it has acquired new tools and is testing new exploits in preparation for future campaigns, Kaspersky Lab said Monday.

Telemetry associated with ScarCruft shows that the threat actor has also developed an interest in attacking mobile devices and has increasingly begun adapting legitimate tools and services in its espionage campaigns.

One of the new tools that ScarCruft has developed is a rare Bluetooth device-harvester designed to collect the names and addresses of Bluetooth devices, device type, whether it is connected, and whether it requires authentication. The malware leverages the Windows Bluetooth API to fingerprint Bluetooth devices, Kaspersky Lab said.

Victims of the ongoing campaign include investment firms and trading companies in Russia and Vietnam that appear to have links to the North Korean government. Entities in North Korea and Hong Kong also have been targeted in its latest campaign.

"ScarCruft has shown itself to be a highly-skilled and active group," Kaspersky Lab said in a report. "Based on ScarCruft's recent activities, we strongly believe that this group is likely to continue to evolve."

Security researchers consider ScarCruft—also known as Reaper and Group 123—to be one of the most active APT groups in the Asian region. It is a Korean-language speaking group that is likely state-sponsored and focused on collecting information pertaining to North Korea and on businesses with connections to the reclusive country.

The group also has been targeting diplomatic missions around the world according to Kaspersky Lab. ScarCruft's victims have included organizations in China, India, South Korea, Kuwait, and Nepal.

ScarCruft attracted some attention early last year for employing an Adobe Flash zero-day exploit in an attack campaign dubbed Operation Daybreak that targeted more than two-dozen high-profile organizations. At the time, Kaspersky Lab researchers believed the threat group had purchased the exploit in the dark market using cryptocurrency, rather than developing the exploit on its own. The researchers assessed then that the group did not have the ability to develop a zero-day exploit.

Continued Evolution

But ScarCruft has ramped up its activities over the past year and has developed into a resourceful and skilled adversary, according to Kaspersky. Like most other threat groups these days, ScarCruft's typical attack strategy is to gain an initial foothold at a targeted organization using spear-phishing emails or watering-hole attacks. During the initial infection stage, ScarCruft downloads a dropper capable of bypassing Windows User Account Control on the compromised system.

The dropper then executes the next payload, which takes advantage of code that organizations normally use for penetration testing in order to escalate privileges. "In order to evade detection at the network level, the malware uses steganography, hiding the malicious code in an image file," Kaspersky Lab said in its report.

ScarCruft also installs ROKRAT, a backdoor that is designed to harvest information from computers and devices on the compromised network and to send the stolen data to either Box, Dropbox, Yandex.Disk, and pCloud.

At least one of ScarCruft's recent victims was an organization that another Korean-speaking threat group called DarkHotel had already previously compromised. Campaigns of the two groups have overlapped previously as well, suggesting that both groups are interested in the same targets despite having very different tools, techniques, and procedures.

"This leads us to believe that one group regularly lurks in the shadow of the other," the Kaspersky Lab report said.

Related Content:

 

 

 

Join Dark Reading LIVE for two cybersecurity summits at Interop 2019. Learn from the industry's most knowledgeable IT security experts. Check out the Interop agenda here.

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
Oldest First  |  Newest First  |  Threaded View
COVID-19: Latest Security News & Commentary
Dark Reading Staff 7/9/2020
Omdia Research Launches Page on Dark Reading
Tim Wilson, Editor in Chief, Dark Reading 7/9/2020
4 Security Tips as the July 15 Tax-Day Extension Draws Near
Shane Buckley, President & Chief Operating Officer, Gigamon,  7/10/2020
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
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 Threat from the Internetand What Your Organization Can Do About It
The Threat from the Internetand What Your Organization Can Do About It
This report describes some of the latest attacks and threats emanating from the Internet, as well as advice and tips on how your organization can mitigate those threats before they affect your business. Download it today!
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2020-15105
PUBLISHED: 2020-07-10
Django Two-Factor Authentication before 1.12, stores the user's password in clear text in the user session (base64-encoded). The password is stored in the session when the user submits their username and password, and is removed once they complete authentication by entering a two-factor authenticati...
CVE-2020-11061
PUBLISHED: 2020-07-10
In Bareos Director less than or equal to 16.2.10, 17.2.9, 18.2.8, and 19.2.7, a heap overflow allows a malicious client to corrupt the director's memory via oversized digest strings sent during initialization of a verify job. Disabling verify jobs mitigates the problem. This issue is also patched in...
CVE-2020-4042
PUBLISHED: 2020-07-10
Bareos before version 19.2.8 and earlier allows a malicious client to communicate with the director without knowledge of the shared secret if the director allows client initiated connection and connects to the client itself. The malicious client can replay the Bareos director's cram-md5 challenge to...
CVE-2020-11081
PUBLISHED: 2020-07-10
osquery before version 4.4.0 enables a priviledge escalation vulnerability. If a Window system is configured with a PATH that contains a user-writable directory then a local user may write a zlib1.dll DLL, which osquery will attempt to load. Since osquery runs with elevated privileges this enables l...
CVE-2020-6114
PUBLISHED: 2020-07-10
An exploitable SQL injection vulnerability exists in the Admin Reports functionality of Glacies IceHRM v26.6.0.OS (Commit bb274de1751ffb9d09482fd2538f9950a94c510a) . A specially crafted HTTP request can cause SQL injection. An attacker can make an authenticated HTTP request to trigger this vulnerabi...