OfflRouter virus causes Ukrainian users to upload confidential documents to VirusTotal

During a threat-hunting exercise, Cisco Talos discovered documents with potentially confidential information originating from Ukraine. The documents contained malicious VBA code, indicating they may be used as lures to infect organizations. The results of the investigation have shown that the...

Iran-Linked UNC1549 Hackers Target Middle East Aerospace & Defense Sectors

An Iran-nexus threat actor known as UNC1549 has been attributed with medium confidence to a new set of attacks targeting aerospace, aviation, and defense industries in the Middle East, including Israel and the U.A.E. Other targets of the cyber espionage activity likely include Turkey, India, and...

Brazilian Feds Dismantle Grandoreiro Banking Trojan, Arresting Top Operatives

A Brazilian law enforcement operation has led to the arrest of several Brazilian operators in charge of the Grandoreiro malware. The Federal Police of Brazil said it served five temporary arrest warrants and 13 search and seizure warrants in the states of São Paulo, Santa Catarina, Pará, Goiás, a...

AllaKore RAT’s Grip Tightens on Mexican Financial Institutions

Summary: A threat actor has been targeting Mexican banks and cryptocurrency trading since at least 2021. Using custom installers, the actor distributes a modified version of the AllaKore RAT, an open-source remote access tool. The campaign cleverly mimics the Mexican Social Security Institute IMS...

New TTPs observed in Mint Sandstorm campaign targeting high-profile individuals at universities and research orgs

Since November 2023, Microsoft has observed a distinct subset of Mint Sandstorm PHOSPHORUS targeting high-profile individuals working on Middle Eastern affairs at universities and research organizations in Belgium, France, Gaza, Israel, the United Kingdom, and the United States. In this campaign,...

CVE-2023-48494

Adobe Experience Manager versions 6.5.18 and earlier are affected by a Cross-site Scripting DOM-based XSS vulnerability. If a low-privileged attacker is able to convince a victim to visit a URL referencing a vulnerable page, malicious JavaScript content may be executed within the context of the...

Russian APT28 Hackers Targeting 13 Nations in Ongoing Cyber Espionage Campaign

The Russian nation-state threat actor known as APT28 has been observed making use of lures related to the ongoing Israel-Hamas war to facilitate the delivery of a custom backdoor called HeadLace. IBM X-Force is tracking the adversary under the name ITG05, which is also known as BlueDelta, Fancy...

New MrAnon Stealer Malware Targeting German Users via Booking-Themed Scam

A phishing campaign has been observed delivering an information stealer malware called MrAnon Stealer to unsuspecting victims via seemingly benign booking-themed PDF lures. "This malware is a Python-based information stealer compressed with cx-Freeze to evade detection," Fortinet FortiGuard Labs...

Star Blizzard increases sophistication and evasion in ongoing attacks

Microsoft Threat Intelligence continues to track and disrupt malicious activity attributed to a Russian state-sponsored actor we track as Star Blizzard formerly SEABORGIUM, also known as COLDRIVER and Callisto Group. Star Blizzard has improved their detection evasion capabilities since 2022 while...

Russian FSB Cyber Actor Star Blizzard Continues Worldwide Spear-phishing Campaigns

The Russia-based actor is targeting organizations and individuals in the UK and other geographical areas of interest. OVERVIEW The Russia-based actor Star Blizzard formerly known as SEABORGIUM, also known as Callisto Group/TA446/COLDRIVER/TAG-53/BlueCharlie continues to successfully use...

Vietnamese Hackers Using New Delphi-Powered Malware to Target Indian Marketers

The Vietnamese threat actors behind the Ducktail stealer malware have been linked to a new campaign that ran between March and early October 2023, targeting marketing professionals in India with an aim to hijack Facebook business accounts. "An important feature that sets it apart is that, unlike...

AtlasCross Exploits Organizations with DangerAds and AtlasAgent Trojans

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary A new threat actor by the name of AtlasCross has been identified employing phishing tactics that use Red Cross-themed lures as part of their attack strategy. These phishing campaigns are being used to...

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...

Vietnamese Cybercriminals Targeting Facebook Business Accounts with Malvertising

Malicious actors associated with the Vietnamese cybercrime ecosystem are leveraging advertising-as-a-vector on social media platforms such as Meta-owned Facebook to distribute malware. "Threat actors have long used fraudulent ads as a vector to target victims with scams, malvertising, and more,"...

The Tale of Two Exploits - Breaking Down CVE-2023-36884 and the Infection Chain

The Tale of Two Exploits - Breaking Down CVE-2023-36884 and the Infection Chain By Chintan Shah · August 24, 2023 Executive Summary On July 11 2023, Microsoft released a patch fixing multiple actively exploited RCE vulnerabilities and disclosed a phishing campaign conducted by the threat actor,...

Russian Hackers Use Zulip Chat App for Covert C&C in Diplomatic Phishing Attacks

An ongoing campaign targeting ministries of foreign affairs of NATO-aligned countries points to the involvement of Russian threat actors. The phishing attacks feature PDF documents with diplomatic lures, some of which are disguised as coming from Germany, to deliver a variant of a malware called...

STARK#MULE Targets Koreans with U.S. Military-themed Document Lures

An ongoing cyber attack campaign has set its sights on Korean-speaking individuals by employing U.S. Military-themed document lures to trick them into running malware on compromised systems. Cybersecurity firm Securonix is tracking the activity under the name STARKMULE. The scale of the attacks i...

PicassoLoader Malware Used in Ongoing Attacks on Ukraine and Poland

Government entities, military organizations, and civilian users in Ukraine and Poland have been targeted as part of a series of campaigns designed to steal sensitive data and gain persistent remote access to the infected systems. The intrusion set, which stretches from April 2022 to July 2023,...

URLs have always been a great hiding place for threat actors

Welcome to this weeks edition of the Threat Source newsletter. Talos recent blog post on the dangers posed by the newly released ".zip" top-level domain TLD recently outlined how threat actors could create real URLs that look like file names and trick users into clicking on their links. .Zip and...

New Botnet Malware 'Horabot' Targets Spanish-Speaking Users in Latin America

Spanish-speaking users in Latin America have been at the receiving end of a new botnet malware dubbed Horabot since at least November 2020. "Horabot enables the threat actor to control the victim's Outlook mailbox, exfiltrate contacts' email addresses, and send phishing emails with malicious HTML...