One Hotel to rule them all, One Hotel to find them, One Hotel to bring them all and in the darkness bind them.
By John Fokker · March 17, 2022
This story was also written by Thibault Seret
Introduction:Our advanced threat research team has discovered a first-stage malicious campaign targeting luxury hotels in Macao, China since the latter half of November 2021.…
UNC2891 often made use of the STEELCORGI in-memory dropper which decrypts its embedded payloads by deriving a ChaCha20 key from the value of an environment variable obtained at runtime. In many cases, Mandiant was unable to recover the requisite environment variables to decrypt the embedded payloads.…
The DirtyMoe malware is deployed using various kits like PurpleFox or injected installers of Telegram Messenger that require user interaction. Complementary to this deployment, one of the DirtyMoe modules expands the malware using worm-like techniques that require no user interaction.
This research analyzes this worming module’s kill chain and the procedures used to launch/control the module through the DirtyMoe service.…
Summary
Multifactor Authentication (MFA): A Cybersecurity Essential• MFA is one of the most important cybersecurity practices to reduce the risk of intrusions—according to industry research, users who enable MFA are up to 99 percent less likely to have an account compromised.• Every organization should enforce MFA for all employees and customers, and every user should sign up for MFA when available.•…
Pandora ransomware came into the spotlight in March 2022 after targeting some high-profile victims on its leak site. The ransomware group announced its first victim on 21 Feb 2022 and has posted around five victims to date.
Figure 1: Pandora ransomware data leak siteDuring a routine threat hunting exercise, Cyble Research Labs came across the sample for this ransomware.…
Over recent months, the CrowdStrike Falcon® OverWatch™ team has tracked an ongoing, widespread intrusion campaign leveraging bundled .msi installers to trick victims into downloading malicious payloads alongside legitimate software. These payloads and scripts were used to perform reconnaissance and ultimately download and execute NIGHT SPIDER’s Zloader trojan, as detailed in CrowdStrike CROWDSTRIKE FALCON® INTELLIGENCE™ Premium reporting.…
The emails can be jarring, but the technique used by Qakbot (aka Qbot) seems to be especially convincing: The email-borne malware has a tendency to spread itself around by inserting malicious replies into the middle of existing email conversations, using the compromised accounts of other infection victims.…
We recently came across a stealer, called Raccoon Stealer, a name given to it by its author. Raccoon Stealer uses the Telegram infrastructure to store and update actual C&C addresses.
Raccoon Stealer is a password stealer capable of stealing not just passwords, but various types of data, including:
Cookies, saved logins and forms data from browsers Login credentials from email clients and messengers Files from crypto wallets Data from browser plugins and extension Arbitrary files based on commands from C&CIn addition, it’s able to download and execute arbitrary files by command from its C&C.…
Since the dawn of phishing, fraudulent invoicing and purchasing schemes have been one of the most common lures. The usual modus operandi involves appealing to the recipient’s desire to avoid incurring a debt, especially where a business may be involved.
FortiGuard Labs recently came across an interesting phishing e-mail masquerading as a purchase order addressed to a Ukrainian manufacturing organization that deals with raw materials and chemicals.…
Over the past year the TeamTNT threat actor has been very active. TeamTNT is one of the predominant cryptojacking threat actors currently targeting Linux servers.…
The criminal group behind the Arkei information stealer appears to be interested in more than just picking our pockets. While cryptocurrency remains a primary target for the malware, which has recently been tied to use of the stealthy SmokeLoader downloader, a new analysis of Arkei shows that it has now expanded its reach to collect multifactor (MFA) authentication data as well.…
Soon after execution of the Qbot payload, the malware established C2 connectivity and created persistence on the beachhead. Successful exploitation of the Zerologon vulnerability (CVE-2020-1472) allowed the threat actors to obtain domain admin privileges.…
In the past few months, a new wave of cyberattacks has been flooding Iran. These attacks are far from minor website defacements – the recent wave is hitting national infrastructure and causing major disruptions to public services.
This article provides an in-depth technical analysis of one of the attacks against the Iranian national media corporation, Islamic Republic of Iran Broadcasting (IRIB) which occurred in late January 2022.…
This post is also available in: 日本語 (Japanese)
Executive SummaryAs early as Dec. 21, 2021, Unit 42 observed a new infection method for the highly prevalent malware family Emotet. Emotet is high-volume malware that often changes and modifies its attack patterns. This latest modification of the Emotet attack follows suit.…
Lorenz is a ransomware strain observed first in February of 2021, and is believed to be a rebranding of the “.sZ40” ransomware that was discovered in October 2020. Lorenz targets organizations worldwide with customized attacks demanding hundreds of thousands of dollars, and even millions in ransom fee. …
case study below, Antlion compromised the networks of at least two other organizations in Taiwan, including another financial organization and a manufacturing company. The activity the group carried out on those networks was largely similar to the activity that is detailed in the case study, with the xPack backdoor frequently deployed and a lot of evidence of credential dumping.…
A new phishing campaign is using specially crafted CSV text files to infect users’ devices with the BazarBackdoor malware.
A comma-separated values (CSV) file is a text file containing lines of text with columns of data separated by commas. In many cases, the first line of text is the header, or description, for each column.…