Malware Analysis Reports. From Our Analysts.
Technical malware analysis reports from Brandefense: how each sample works, its infrastructure and indicators of compromise, and how to detect it.
Malware Analysis Reports Ransomware in U.S. Healthcare: Threat Landscape, Impact, and Mitigation Strategies What this report covers This report looks at ransomware against the U.S. healthcare sector, where attacks have caused large financial losses, service disruption and risk to… 
Malware Analysis Reports Fog Ransomware Technical Analysis Fog ransomware technical analysis report: how it is believed to gain access, how it disrupts systems, plus detections, IoCs and response advice. 
Malware Analysis Reports Securing Election Processes Against Cyber Threats Analysis of cyber threats targeting electoral processes — influence operations, voter data exposure, infrastructure attacks, and threat intelligence strategies 
Malware Analysis Reports Breaking the Angel’s Wing: Angel Drainer Angel Drainer steals digital assets with phishing pages and rents its panel to other criminals. See what this report covers: methods, detections and IoCs. 
Malware Analysis Reports Hunters International Ransomware Technical Analysis Technical analysis of Hunters International ransomware: a Rust-based RaaS sample that uses AES and RSA encryption, adds .locked and leaves a ransom note. 
Malware Analysis Reports Strela Stealer Technical Analysis Strela stealer is Windows malware that steals Outlook and Thunderbird logins. See what the technical report covers: methods, detections and IoCs. 
Malware Analysis Reports Grandoreiro Trojan Technical Analysis Grandoreiro is a Delphi banking trojan seen since 2016 and aimed at banking users in Latin America and Iberia. See what this technical report covers. 
Malware Analysis Reports BugSleep Backdoor Technical Analysis Technical analysis of the BugSleep backdoor attributed to MuddyWater: file transfer, reverse shell commands, scheduled task persistence and detections. 
Malware Analysis Reports Donex Ransomware Technical Analysis What You Will Find In This Report? Learn Technical Method of Operation DetailsYou will find the technical details of the Donex ransomware, its functions, and details… 
Malware Analysis Reports Rugmi Loader Technical Analysis What You Will Find In This Report? Learn Technical Method of Operation DetailsYou will find the technical details of the Rugmi Loader, its functions, and details… 
Malware Analysis Reports Oyster Backdoor Technical Analysis Read how the Oyster backdoor infiltrates systems through fake Microsoft Teams installers, gathers system data and talks to command and control servers. 
Malware Analysis Reports Xehook Stealer Technical Analysis Technical analysis of Xehook Stealer — credential theft capabilities, targeted data categories, MaaS distribution model, anti-analysis techniques, and IOCs for All 4 pages
About The Blog.
Last updated June 9, 2026-
Articles on ransomware, APT groups, the dark web, digital risk protection, fraud, sector analysis and VIP security, written for security teams.
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New articles are added several times a month. The newest come first, and every article shows its publish date.
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Use the topic chips above the list to open one topic, or type a word in the search box. Each topic has its own page.
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Articles draw on public sources such as CISA advisories, MITRE ATT&CK and ENISA reports. Sources are listed at the end of an article when it cites them.
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The site feed at brandefense.io/feed/ lists new posts. The email sign-up box is on the All Resources and Reports pages.
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Brandefense is an AI-driven threat intelligence company. Its platform covers cyber threat intelligence, digital risk protection and external attack surface management. You can request a demo on your own domain from the Request A Demo page.
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The count at the top of the blog page shows the current total, and each topic chip shows how many articles that topic holds. You can open all of them or pick one topic, such as APT Groups, Dark Web, Ransomware or Fraud. Each article shows its publish date.
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The blog describes its articles as explained by the analysts who track threats. They cover threat actors, dark web activity, ransomware and digital risk. The newest articles appear first.
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Yes. APT Groups is one of the topic chips above the list, and it opens only the articles on that topic. The Knowledge Hub also holds profiles of threat groups.
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The surface web is the part of the internet that search engines list. The deep web is content that search engines do not list, such as pages behind a login. The dark web needs special software to reach. The blog has an article that explains the three layers in plain words.