Storm-0324: An access for the RaaS Threat Actor (Sangria Tempest)

Storm-0324 to Sangria Tempest Leads to Ransomware Capabilities By Gurumoorthi Ramanathan · October 5, 2023 Executive Summary: In early July 2023, the threat actor that Microsoft calls “Storm-0324” was observed sending a phishing message through Microsoft Teams. Storm-0324 is a financially motivat...

Malware distributor Storm-0324 facilitates ransomware access

The threat actor that Microsoft tracks as Storm-0324 is a financially motivated group known to gain initial access using email-based initial infection vectors and then hand off access to compromised networks to other threat actors. These handoffs frequently lead to ransomware deployment. Beginnin...

Threat Roundup for June 30 to July 7

Today, Talos is publishing a glimpse into the most prevalent threats weve observed between June 30 and July 7. As with previous roundups, this post isnt meant to be an in-depth analysis. Instead, this post will summarize the threats weve observed by highlighting key behavioral characteristics,...

Threat Roundup for April 7 to April 14

Today, Talos is publishing a glimpse into the most prevalent threats weve observed between April 7 and April 14. As with previous roundups, this post isnt meant to be an in-depth analysis. Instead, this post will summarize the threats weve observed by highlighting key behavioral characteristics,...

Emotet Rises Again: Evades Macro Security via OneNote Attachments

The notorious Emotet malware, in its return after a short hiatus, is now being distributed via Microsoft OneNote email attachments in an attempt to bypass macro-based security restrictions and compromise systems. Emotet, linked to a threat actor tracked as Gold Crestwood, Mummy Spider, or TA542,...

Dridex Malware Now Attacking macOS Systems with Novel Infection Method

A variant of the infamous Dridex banking malware has set its sights on Apple's macOS operating system using a previously undocumented infection method, according to latest research. It has "adopted a new technique to deliver documents embedded with malicious macros to users without having to...

Dridex Returns, Targets MacOS Using New Entry Method

The Dridex variant we analyzed targets MacOS platforms with a new technique to deliver documents embedded with malicious macros to users...

New Evidence Links Raspberry Robin Malware to Dridex and Russian Evil Corp Hackers

Researchers have identified functional similarities between a malicious component used in the Raspberry Robin infection chain and a Dridex malware loader, further strengthening the operators' connections to the Russia-based Evil Corp group. The findings suggest that "Evil Corp is likely using...

RIG Exploit Kit Now Infects Victims' PCs With Dridex Instead of Raccoon Stealer

The operators behind the Rig Exploit Kit have swapped the Raccoon Stealer malware for the Dridex financial trojan as part of an ongoing campaign that commenced in January 2022. The switch in modus operandi, spotted by Romanian company Bitdefender, comes in the wake of Raccoon Stealer temporarily...

Dridex Malware Deploying Entropy Ransomware on Hacked Computers

Similarities have been unearthed between the Dridex general-purpose malware and a little-known ransomware strain called Entropy, suggesting that the operators are continuing to rebrand their extortion operations under a different name. "The similarities are in the software packer used to conceal...

Living Off the Land: How to Defend Against Malicious Use of Legitimate Utilities

Living-off-the-land binaries LOLBins are no joke: Cyberattackers have been increasingly making use of them to hide their malicious work from security solutions. It’s time for threat hunters and IT security staff to familiarize themselves with how these are used in the attack chains of some of the...

Microsoft is now disabling Excel 4.0 macros by default

Back in October 2021, Microsoft announced in an email sent to customers that it planned to disable Excel 4.0 macros by default to protect customers from malicious documents. Now, Microsoft says that change has happened. Good news Sometimes good news in the security world comes later than expected...

A week in security (Dec 20 – 26)

Last week on Malwarebytes Labs: When a deepfake “empire” continues to grow Everything you always wanted to know about NFTs but were too afraid to ask: Lock and Code S02E24 Police forces pipe 225 million pwned passwords into ‘Have I Been Pwned?’ Logistics giant warns of scams following ransomware...

Dridex affiliate dresses up as Scrooge

Threat actors are hoping to catch a few more victims before they leave work for the Christmas holidays. The recent malicious spam campaigns malspam we and others have observed appear to have been created by someone who wants to play Scrooge and add onto peoples already heightened state of anxiety...

TA505 Gang Is Back With Newly Polished FlawedGrace RAT

The TA505 cybercrime group is whirring its financial rip-off machinery back up, pelting malware at a range of industries in what was initially low-volume waves that researchers saw spiral up late last month. They do bad things, but they’re so tricky that tracking them is a ton of fun, said Sherro...

Malspam banks on Kaseya ransomware attack

The Malwarebytes Threat Intelligence Team recently found a malicious spam campaign making the rounds and banking on the ransomware attack that forced Kaseya to shut down its VSA service. This is a classic example of an opportunistic attack conducted by potentially another threat actor/group off t...

Fake Kaseya VSA Security Update Drops Cobalt Strike

A malware spam campaign is milking the Kaseya ransomware attacks against its Virtual System/Server Administrator VSA platform to spread a link pretending to be a Microsoft security update, along with an executable file that’s dropping Cobalt Strike, researchers warn. On Tuesday night, Malwarebyte...

Ransomware Attackers Partnering With Cybercrime Groups to Hack High-Profile Targets

As ransomware attacks against critical infrastructure skyrocket, new research shows that threat actors behind such disruptions are increasingly shifting from using email messages as an intrusion route to purchasing access from cybercriminal enterprises that have already infiltrated major targets...

$4,000 COVID-19 'Relief Checks' Cloak Dridex Malware

Cybercriminals have wasted no time in hopping on the American Rescue Plan – the COVID-19 relief legislation just signed into law – as a lure for email-based scams. According to researchers at Cofense, a campaign began circulating in March that capitalized on Americans’ interest in the forthcoming...

Extortion, precision malware, and ruthless scams. Read the State of Malware 2021 report

Last year, threat actors took advantage of the COVID-19 public health crisis in a way previously considered unimaginable, not only preying on uncertainty and fear during the initial months of the global pandemic, but retooling attack methods, reneging on promises, strengthening malware, and...