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danabot malware analysis28 May danabot malware analysis

url = {https://www.f5.com/labs/articles/education/banking-trojans-a-reference-guide-to-the-malware-family-tree}, Once downloaded, it executes the compile.dll file that effectively compromises the system and puts it into the hands of whichever threat actor has purchased the DanaBot Malware-as-a-Service. The DLL is cryptographically verified using the RSA algorithm and the following public key: MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDOmbQ1gGQtE8PUhjKIETLaSSEc, JGp9O0gyckoyrIfb4l4BZqLKAkDGm59lUxSFWPCINQOMQvgvDYydMOyMvABtmi4c, 0yb4te8dXE0xVxTQmnxGV9pAf3gfcEg3aqBne/7AQmS+0fFUpccX+huz4Sys415+. They should patch such packages immediately and check for artifacts of DanaBot. We first observed DanaBot as the payload of an Australia-targeted email campaign on May 6, 2018. At the time of the incident, the affiliate had only configured the malwares credential stealing component to be active--the person-in-the-browser and webinject bank fraud component was not activated. Figure 7 shows an example snippet of code with a number of these calls. Webinjects are malicious display fields or overlays that are injected onto webpages open on the victims browser. Provide users with seamless, secure, reliable access to applications and data. You can also see the system components used to download and register the malicious DLL into the system. language = {English}, language = {English}, url = {https://securelist.com/nullmixer-oodles-of-trojans-in-a-single-dropper/107498/}, date = {2021-11-18}, More recently, DanaBot has been hosted and distributed via webpages offering cracked software and applications. In addition, researchers noticed that the attackers utilizing Danabot ventured beyond banking credentials theft and started utilizing this banking malware to host other spam and malicious campaigns, using the infected machines of their victims. Tables 6-9 provide the values of some of the configuration files downloaded by the bot. license = "This Yara rule is provided under the Apache License 2.0 (https://www.apache.org/licenses/LICENSE-2.0) and open to any user or organization, as long as you use it under this license and ensure originator credit in any derivative to The BlackBerry Research & Intelligence Team" ANY.RUN uses Suricata IDS rule sets, so if malware trying to communicate with C&C servers, it will be detected. language = {English}, Before moving on to additional DanaBot anti-analysis techniques, weve included three IDA Python scripts: The first two scripts are preparation steps to help with stack string deobfuscation described in a later section. Other modules associated with DanaBot include remote desktop through VNC, information stealing, and keylogging. Since its creation in 2018, threat actors who purchased the malware have been given specific botnet identification for the MaaS, known as affiliate IDs. At its heart, DanaBot is a complex and modular information-stealer, focusing on harvesting victim credentials and other valued logins. As highlighted in the Host header in Figure 2 above, the attack targets a Russian language forum focused on the discussion of electronics. Learn about our relationships with industry-leading firms to help protect your people, data and brand. On Wednesday October 20, 2021, the affiliate configured its DanaBot victims to download and execute a new executable with a SHA-256 hash of: 8b64b8bfd9e36cc40c273deccd4301a6c2ab44df03b976530c1bc517d7220bce. Finally, once installed, the modules provide the functionality, which can vary depending on which modules were chosen by the ill-wisher in a particular campaign. Figure 15 is an example of the same code snippet after applying the deobfuscation scripts. As we saw in the stack strings section above, there were a lot of DLL, executable, and Windows API name based junk strings. author = {Silviu Stahie}, Dyre is allegedly a variant of Zeus malware, though no official attribution to the source code can be confirmed. SystemBC is like Christmas in July for SOCKS5 Malware and - Proofpoint DanaBot Gains Popularity and Targets US Organizations in Large Check Point Research has been tracking DanaBot campaigns . author = {welivesecurity}, 1. It is worth noting that samples of DanaBot found in a public malware repository contained different campaign IDs (the a= parameter) than the ones we observed in the wild, suggesting that there may be activity other than that which we observed. organization = {Twitter (@f0wlsec)}, Seized Genesis malware market's infostealers infected 1.5 million date = {2021-11-05}, What is Zero Trust Network Access (ZTNA)? In the last stage of the malware attacks, the downloaded binary (DanaBot) is executed into a malicious Chrome extension and associated JavaScript files. Affiliates then distribute and use the malware as they see fit--mostly to steal credentials and commit banking fraud. Global Takedown Of Largest Cybercriminal Marketplace, Genesis url = {https://malverse.it/costruiamo-un-config-extractor-per-danabot-parte-1}, The main component, which is installed by the loader, is configured to download the modules that the attacker can specify. WARNING: At the time of writing, the BlackBerry Research & Intelligence Team has noted the URL above is both still active and hosting samples of DanaBot. Small Business Solutions for channel partners and MSPs. The messages used the subject "Your E-Toll account statement" and contained URLs redirecting to Microsoft Word documents hosted on another site (hxxp://users[.]tpg[.]com[.]au/angelcorp2001/Account+Statement_Mon752018.doc). Analyzing the contents of a compromised version of the package rc-1.3.9, we can see the malicious scripts added to the package (highlighted in red). Danabot is distributed in email spam campaigns targeting organizations and using social engineering to trick victims into downloading malicious documents the same scenario as. In addition, the module nature of this banking malware allows attackers to fine-tune their campaigns, customizing them for every potential victim. DanaBot has since used addresses stolen by webinject to further its spam email campaigns and spread its reach. Danabot banking malware execution process. institution = {Spamhaus}, What is a Cloud Native Application Protection Platform (CNAPP)? The IDA Python script 06_fake_UStrLAsg_and_UStrCopy.py tries to find and patch these junk calls. Banking Trojans now make up almost 60% of malicious payloads we observe in email. Agent Tesla is spyware that collects information about the actions of its victims by recording keystrokes and user interactions. DanaBot relied on social engineering tactics of varying complexity to bait victims into following unknown links attached to emails, and inadvertently downloading the malware. author = {Yaroslav Harakhavik and Aliaksandr Chailytko}, Check out the BlackBerry Research & Intelligence Teams new book, Finding Beacons in the Dark: A Guide to Cyber Threat Intelligence - now available for free download here. PDF Breakdown of a Targeted DanaBot Attack - vx-underground pe.entry_point == 0x154ccb and, //Must have exactly 5 sections These junk strings exist as normal strings as well, see Figure 12 as an example. date = {2021-02-02}, Learn more aboutDanaBotin our deep dive blog,Threat Thursday: DanaBots Evolution from Bank Fraud to DDoS Attacks. Throughout its life, DanaBot has been used in a wide range of campaigns, and its delivery has changed and evolved as well. Researchers are warning that a new fourth version of the DanaBot banking trojan. }, @online{cohen:20200809:banking:8718999, title = {{Threat Thursday: DanaBots Evolution from Bank Fraud to DDos Attacks}}, How to analyze Danabot with ANY.RUN IOCs IP addresses 193.34.166.247 116.111.206.27 185.101.92.195 192.236.192.238 }, Distribution of Redline Stealer Disguised as Software Crack, @online{parilli:20211215:no:b7a3405, and was used to download a DanaBot main component with the SHA-256 hash of: e7c9951f26973c3915ffadced059e629390c2bb55b247e2a1a95effbd7d29204. urldate = {2019-11-14} Danabot differs from competing Trojans thanks to its robust delivery system and modular design. Key Points. The DLL, in turn, connects using raw TCP connections to port 443 and downloads additional modules including: The malware also downloads configuration files such as: Finally, it also uploads files to the command and control (C&C) server including: All uploads and downloads are encrypted with the Microsoft CryptAPI AES256 algorithm. language = {English}, organization = {Kaspersky}, @online{schwarz:20221206:technical:bfde08b, Proofpoints describes DanaBot as the latest example of malware focused on persistence and stealing useful information that can later be monetized rather than demanding an immediate ransom from victims. url = {https://malwareandstuff.com/deobfuscating-danabots-api-hashing/}, Transform your organization with 100% cloud native services, Propel your business with zero trust solutions that secure and connect your resources. Also known as Dyreza, Dyzap, and Dyranges, Dyre first emerged in 2014 targeting major online banking services. Welcome to "VirusTotal's 2021 Malware Trends Report" research report. The malspam emails used in Australia had a message subject that read, "Your E-Toll account statement" and contained URL's that redirected victims to Microsoft Word documents hosted on another site. Experience the Worlds Largest Security Cloud. language = {English}, Figure 6: Stealer module targeting information from browsers, Figure 7: Stealer module targeting FTP clients (actual list is much longer). title = {{Technical Analysis of DanaBot Obfuscation Techniques}}, Dyre. Learn about how we handle data and make commitments to privacy and other regulations. }, Threat Thursday: DanaBots Evolution from Bank Fraud to DDos Attacks, @online{genheimer:20211114:static:944e6c7, }, Strange Bits: HTML Smuggling and GitHub Hosted Malware, @techreport{inc:20190508:2019:3c20a3b, Recently, version 2646 of the malware was spotted in the wild and also a researcher tweeted screenshots of Danabots advertisement website shown in Figure 1. The presence of malicious code in these packages was discovered by someone who had used the coa package, and then subsequently reported errors in various builds. This site uses JavaScript to provide a number of functions, to use this site please enable JavaScript in your browser. language = {English}, The malware assigns letters of the alphabet to individual variables and then uses those variables, pointers to those variables, and various Delphi character/string handling functions to construct strings one character at a time.

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