Salim Bitam
Abonnieren
REVSTEALER ramps up: analysis of up-and-coming infostealer
Elastic Security Labs deep dives into REVSTEALER, an emerging infostealer targeting browsers, wallets, and gaming accounts.
ClickFix to Cash-Out: Anatomy of a Mexican Banking-Fraud Toolkit
Elastic Security Labs tracks REF6045, an active operator-assisted banking fraud operation targeting customers of Mexican banks, fintech, payment processors, and cryptocurrency exchanges.
PHANTOMPULSE: anatomy of a hijackable blockchain-C2 RAT
Elastic Security Labs presents a detailed reverse-engineering analysis of PHANTOMPULSE, the long-lived RAT delivered to crypto-sector victims through the REF6598 intrusion set.
Phantom in the vault: Obsidian abused to deliver PhantomPulse RAT
Elastic Security Labs uncovers a novel social engineering campaign that abuses the popular note-taking application, Obsidian's legitimate community plugin ecosystem. The campaign, which we track as REF6598, targets individuals in the financial and cryptocurrency sectors through elaborate social engineering on LinkedIn and Telegram.
Elastic releases detections for the Axios supply chain compromise
Hunting and detection rules for the Elastic-discovered Axios supply chain compromise.
Inside the Axios supply chain compromise - one RAT to rule them all
Elastic Security Labs analyzes a supply chain compromise of the axios npm package delivering a unified cross-platform RAT
Elastic Security Labs uncovers BRUSHWORM and BRUSHLOGGER
Elastic Security Labs observed two custom malware components targeting a South Asian financial institution: a modular backdoor with USB-based spreading and a DLL-side-loaded keylogger.
From Invitation to Infection: How SILENTCONNECT Delivers ScreenConnect
SILENTCONNECT is a multi-stage loader that leverages VBScript, in-memory PowerShell execution, and PEB masquerading to silently deploy the ScreenConnect RMM tool.
MIMICRAT: ClickFix Campaign Delivers Custom RAT via Compromised Legitimate Websites
Elastic Security Labs uncovered a ClickFix campaign using compromised legitimate sites to deliver a five-stage chain ending in MIMICRAT, a custom native C RAT with malleable C2, token theft, and SOCKS5 tunneling.
RONINGLOADER: DragonBreath’s New Path to PPL Abuse
Elastic Security Labs uncovers RONINGLOADER, a multi-stage loader deploying DragonBreath’s updated gh0st RAT variant. The campaign weaponizes signed drivers, thread-pool injection, and PPL abuse to disable Defender and evade Chinese EDR tools.
TOLLBOOTH: What's yours, IIS mine
REF3927 abuses publicly disclosed ASP.NET machine keys to compromise IIS servers and deploy TOLLBOOTH SEO cloaking modules globally.
A Wretch Client: From ClickFix deception to information stealer deployment
Elastic Security Labs detected a surge in ClickFix campaigns, using GHOSTPULSE to deploy Remote Access Trojans and data-stealing malware.
The Shelby Strategy
An analysis of REF8685's abuse of GitHub for C2 to evade defenses.
You've Got Malware: FINALDRAFT Hides in Your Drafts
During a recent investigation (REF7707), Elastic Security Labs discovered new malware targeting a foreign ministry. The malware includes a custom loader and backdoor with many features including using Microsoft’s Graph API for C2 communications.
Under the SADBRIDGE with GOSAR: QUASAR Gets a Golang Rewrite
Elastic Security Labs share details about the SADBRIDGE loader and GOSAR backdoor, malware used in campaigns targeting Chinese-speaking victims.
Katz and Mouse Game: MaaS Infostealers Adapt to Patched Chrome Defenses
Elastic Security Labs breaks down bypass implementations from the infostealer ecosystem’s reaction to Chrome 127's Application-Bound Encryption scheme.
Tricks and Treats: GHOSTPULSE’s new pixel-level deception
The updated GHOSTPULSE malware has evolved to embed malicious data directly within pixel structures, making it harder to detect and requiring new analysis and detection techniques.
Globally distributed stealers
This article describes our analysis of the top malware stealer families, unveiling their operation methodologies, recent updates, and configurations. By understanding the modus operandi of each family, we better comprehend the magnitude of their impact and can fortify our defences accordingly.
Invisible miners: unveiling GHOSTENGINE’s crypto mining operations
Elastic Security Labs has identified REF4578, an intrusion set incorporating several malicious modules and leveraging vulnerable drivers to disable known security solutions (EDRs) for crypto mining.
PIKABOT, I choose you!
Elastic Security Labs observed new PIKABOT campaigns, including an updated version. PIKABOT is a widely deployed loader malicious actors utilize to distribute additional payloads.
Ransomware in the honeypot: how we capture keys with sticky canary files
This article describes the process of capturing encryption keys from ransomware using Elastic Defend ransomware protection.
Introduction to Hex-Rays decompilation internals
In this publication, we delve into Hex-Rays microcode and explore techniques for manipulating the generated CTree to deobfuscate and annotate decompiled code.
Unmasking a Financial Services Intrusion: REF0657
Elastic Security Labs details an intrusion leveraging open-source tooling and different post-exploitation techniques targeting the financial services industry in South Asia.
GHOSTPULSE haunts victims using defense evasion bag o' tricks
Elastic Security Labs reveals details of a new campaign leveraging defense evasion capabilities to infect victims with malicious MSIX executables.
Introducing the REF5961 intrusion set
The REF5961 intrusion set discloses three new malware families targeting ASEAN members. The threat actor leveraging this intrusion set continues to develop and mature their capabilities.
Revisiting BLISTER: New development of the BLISTER loader
Elastic Security Labs dives deep into the recent evolution of the BLISTER loader malware family.
The DPRK strikes using a new variant of RUSTBUCKET
Watch out! We’ve recently discovered a variant of RUSTBUCKET. Read this article to understand the new capabilities we’ve observed, as well as how to identify it in your own network.
Initial research exposing JOKERSPY
Explore JOKERSPY, a recently discovered campaign that targets financial institutions with Python backdoors. This article covers reconnaissance, attack patterns, and methods of identifying JOKERSPY in your network.
Elastic Security Labs steps through the r77 rootkit
Elastic Security Labs explores a campaign leveraging the r77 rootkit and has been observed deploying the XMRIG crypto miner. The research highlights the different modules of the rootkit and how they’re used to deploy additional malicious payloads.
BLISTER Loader
The BLISTER loader continues to be actively used to load a variety of malware.
Attack chain leads to XWORM and AGENTTESLA
Our team has recently observed a new malware campaign that employs a well-developed process with multiple stages. The campaign is designed to trick unsuspecting users into clicking on the documents, which appear to be legitimate.
Not sleeping anymore: SOMNIRECORD's wake-up call
Elastic Security Labs researchers identified a new malware family written in C++ that we refer to as SOMNIRECORD. This malware functions as a backdoor and communicates with command and control (C2) while masquerading as DNS.
CUBA Ransomware Malware Analysis
Elastic Security has performed a deep technical analysis of the CUBA ransomware family. This includes malware capabilities as well as defensive countermeasures.
Update to the REF2924 intrusion set and related campaigns
Elastic Security Labs is providing an update to the REF2924 research published in December of 2022. This update includes malware analysis of the implants, additional findings, and associations with other intrusions.
NETWIRE Dynamic Configuration Extraction
Elastic Security Labs discusses the NETWIRE trojan and is releasing a tool to dynamically extract configuration files.
FLARE-ON 9 Solutions:
This year's FLARE-ON consisted of 11 different reverse engineering challenges with a range of interesting binaries. We really enjoyed working on these challenges and have published our solutions here to Elastic Security Labs.
SiestaGraph: New implant uncovered in ASEAN member foreign ministry
Elastic Security Labs is tracking likely multiple on-net threat actors leveraging Exchange exploits, web shells, and the newly discovered SiestaGraph implant to achieve and maintain access, escalate privilege, and exfiltrate targeted data.
Exploring the REF2731 Intrusion Set
The Elastic Security Labs team has been tracking REF2731, an 5-stage intrusion set involving the PARALLAX loader and the NETWIRE RAT.
Doing time with the YIPPHB dropper
Elastic Security Labs outlines the steps collect and analyze the various stages of the REF4526 intrusion set. This intrusion set uses a creative approach of Unicode icons in Powershell scripts to install a loader, a dropper, and RAT implants.
BUGHATCH Malware Analysis
Elastic Security has performed a deep technical analysis of the BUGHATCH malware. This includes capabilities as well as defensive countermeasures.
CUBA Ransomware Campaign Analysis
Elastic Security observed a ransomware and extortion campaign leveraging a combination of offensive security tools, LOLBAS, and exploits to deliver the CUBA ransomware malware.
LUNA Ransomware Attack Pattern Analysis
In this research publication, we'll explore the LUNA attack pattern — a cross-platform ransomware variant.