Vietnam-Based Cyber Groups Using Fake Job Postings to Deliver Malware



Google Ads MalwareSeveral cybercriminal groups based in Vietnam are using fake job postings to trick users into installing malware, according to researchers at WithSecure. The researchers are tracking several related malware campaigns, including “DarkGate” and “Ducktail.”

“Vietnamese cybercrime groups are using multiple different Malware as a Service (MaaS) infostealers and Remote Access Trojans (RATs) to target the digital marketing sector,” the researchers write. “These actors greatly value Facebook business accounts and hijacking these accounts appears to be one of their primary goals. The targeting and methods of these groups heavily overlap to an extent that suggests that they are a closely related cluster of operators/groups. It is possible to identify campaigns carried out by these groups through non-technical indicators, such as their lure topics, lure files, and associated metadata.”

The crooks use LinkedIn messages to distribute links to the malicious documents, which impersonate job descriptions.

“Analysis of browser history on a victim device identified that the initial vector was a LinkedIn message which directed the victim to hxxps://g2[.]by/jd-Corsair, which then redirected the victim to a file hosted on Google Drive,” the researchers write.“The initial infection vector being via a LinkedIn message is a typical method seen by WithSecure Intelligence in DuckTail campaigns, and Ducktail appears to be used by a cluster of different yet related Vietnamese threat actors.”

The criminals are focused on information theft and compromising Facebook Business accounts.

“The Ducktail related DarkGate campaigns have a very similar initial infection route, but the function of the payloads differs greatly,” WithSecure says. “Ducktail is a dedicated infostealer, it is in no way stealthy, and upon execution it will rapidly steal credentials and session cookies from the local device and send them back to the attacker. It has an additional Facebook Business account focused function whereby if it locates a Facebook Business account session cookie it will attempt to add the attacker to the account as an administrator, and even has functionality to automatically create and publish fraudulent ad campaigns sent by the actor to the compromised device. This additional, heavily Facebook focused functionality is still based around Infostealing, though it suggests a very tight focus for the attacker.”

KnowBe4 enables your workforce to make smarter security decisions every day. Over 65,000 organizations worldwide trust the KnowBe4 platform to strengthen their security culture and reduce human risk.

WithSecure has the story.


Free Phishing Security Test

Would your users fall for convincing phishing attacks? Take the first step now and find out before bad actors do. Plus, see how you stack up against your peers with phishing Industry Benchmarks. The Phish-prone percentage is usually higher than you expect and is great ammo to get budget.

PST ResultsHere's how it works:

  • Immediately start your test for up to 100 users (no need to talk to anyone)
  • Select from 20+ languages and customize the phishing test template based on your environment
  • Choose the landing page your users see after they click
  • Show users which red flags they missed, or a 404 page
  • Get a PDF emailed to you in 24 hours with your Phish-prone % and charts to share with management
  • See how your organization compares to others in your industry

Go Phishing Now!

PS: Don't like to click on redirected buttons? Cut & Paste this link in your browser:

https://www.knowbe4.com/phishing-security-test-offer

Topics: Malware



Subscribe To Our Blog


Comprehensive Anti-Phishing Guide




Get the latest about social engineering

Subscribe to CyberheistNews