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Rhadamanthys

60
Global rank
21 infographic chevron month
Month rank
28 infographic chevron week
Week rank
0
IOCs

Rhadamanthys is a C++ information-stealing malware that extracts sensitive data from infiltrated machines. Its layered operational chain and advanced evasion tactics make it a major risk in cybersecurity landscapes.

Stealer
Type
Unknown
Origin
26 September, 2022
First seen
13 September, 2024
Last seen

How to analyze Rhadamanthys with ANY.RUN

Type
Unknown
Origin
26 September, 2022
First seen
13 September, 2024
Last seen

IOCs

IP addresses
95.111.233.125
45.15.159.42
189.245.155.48
190.140.74.43
81.17.28.78
138.36.3.134
189.245.97.177
187.156.109.2
187.224.55.97
87.251.64.231
142.11.236.5
187.233.22.167
185.246.220.89
37.254.198.8
66.79.104.155
172.67.173.51
104.21.30.154
140.82.121.4
195.96.151.46
195.96.151.42
Hashes
b4c8fc082585c01b0ff64a7088e77ead33433f1a34251aef7f228d86b615b821
d4edbd271506de13bedf6cd5428ae490ed1be2ee25651eb583d965831d80b43a
64d1e37fd6b8a1e08cd66ac039a919e1212b02e53433f6c4584bc4782b52ede0
93c44c1e87360a8d8c7741f1166e14a1bb3cabcac4f296ef9b141a34b1c0553c
5722b41bb358095c54c0c970b25df69297f9656a1a79ea641cabf6d3cb89ccf8
1a3f1b82d83a7127ddc70816989aa82a6cac50d06895516e7435451f31284153
c8b6d97c8058d1d7c1bbc543733d6d953d9f3a70fbf62801c7ffb76e981d72f1
7f5a1d9a81c8e16ed8e5fff72f8685f529235753bd3ebfabeb947c589774179d
7435f660e40743693ff284299178d9bee52c9f9dbce2f1ca1bcc1f528ff47dc8
7293966f11279380ddedd7269e344dd4d1f85269753da563bb0a61f62bc7ac21
f8e588419f5065ee11b2b70484a7431a3caa35e8fd0979e9cd559d8e14707121
a829fa420f1df8e575312fd0b110fee2ee6c68ea9c7b36ba8be9aa5991a4f010
afa197e377d3a27abdca75411194aaad116bba58a3888e75b557ad44008b34fd
244df867017dc59ee2e05033ba7a06a1f8cf861c5a9435a84b82e0239775c5b9
9db531c69951bf760311c61c506dc48d23ca12a8b448bff770288f5bdf685c39
8316ddf96fbfcff9863eaa1408a96e76ff6f4fdd96f868b6c5699e9bd18b1131
9e068da322450ae34e33254c3bd919c1a38c5387f10f99ce4305bc63452acea6
ff38415bfa7f2db5ba40f26e64ede0676971c441823d2ec2755d644d8905d809
0843a128cf164e945e6b99bda50a7bdb2a57b82b65965190f8d3620d4a8cfa2c
d538cebe4d41578b2e05e4d616c57106226deddd81a53a71695b8bcf8f3f2a49
Domains
roobsadlov.cloud
loasdpyreasoonjop.cloud
saprinoduys.ink
atlaissian.com
amplosurestob.homes
dopsry.ink
keauniolas.org
cilyseyann.org
wokodloisa.pro
nooaasdzasg.live
simonasoshiop.click
deadmunky.nl
voxium.eu
voxiumhub.com
ipcheadoop.pro
shawnydne.org
indscpm.xyz
yoganesteron.wiki
silobsatewpes.click
gpasoobater.pro
URLs
http://162.33.178.106/gjntrrm/zznb2o.hgfq
http://179.43.142.201/img/favicon.png
http://amxt25.xyz/a6ba5b1ae6dec5f7c/8tkf22v9.ed2jd
http://amx155.xyz/a6ba5b1ae6dec5f7c/j5e4ok98.h44x9
http://212.193.30.32/upload/libssl.dll
http://193.42.33.123:443/wgetlist/in60fc.j42a
http://31.220.57.50/abctop/oy7xup.thms
http://8002.motorline.pw/api/9wcnem.x0vs
http://79.137.195.45:8080/api/purple
http://perfecto.ac.ug/ggkanor/0mv8dc.bqmu
http://185.224.129.51:8080/modlib/79q4x9.fkc9
http://8002.motorline.pw/api/mpnz0d.fxbz
http://185.224.129.51:8080/modlib/o6u3ke.661c
http://turkie.ac.ug/url/yk/rem.exe
http://api.mylangroups.com/api/59ywc1.5oic
http://144.76.33.241/fredom/YTmeta.api
http://185.224.129.51:8080/modlib/8q85xm.zmam
http://79.137.195.45:8080/api/magic
http://79.137.195.45:8080/api/hello
http://79.137.195.45:8080/api/CRYPTORPROLIV
Last Seen at

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What is Rhadamanthys Stealer Malware

First observed in late 2022, Rhadamanthys is an advanced info-stealer that targets Windows platforms. It is distributed through the malware-as-a-service (MaaS) model. This, in conjunction with its extremely robust and diverse malicious capabilities contributes to the rising popularity of this malware.

Similar to threats like RedLine or Raccoon, utilizing this new strain, threat actors can extract user passwords and exfiltrate sensitive data from infiltrated systems. The info-stealer also presents a significant threat to various cryptocurrency platforms, where it's employed to seize user credentials and wallets.

Certain indicators suggest that Rhadamanthys stealer has the potential to evolve into a pervasive threat. Notably, the malware's initial launch demonstrated signs of meticulous planning. The individual who first introduced it on an underground forum, operating under the pseudonym "kingcrete2022", began building his account's reputation well in advance of the release announcement. This proactive strategy aimed to establish credibility and set the stage for the malware's introduction.

The tactic proved successful, as the debut post, which promoted Rhadamanthys as a "first-class" stealer, quickly gained momentum and attracted attention in the underground community.

As it stands, Rhadamanthys indiscriminately attacks targets worldwide, even reaching into the territories of the former USSR. The malware has been identified in several malicious spam and Google Ads campaigns, but more on this later in the article.

It should be noted, that Rhadamanthys stealer employs a design philosophy that aims to incorporate an expansive list of features. These features are not strategically targeted but rather prioritize extensive capability. For example, malware is, rather unnecessarily, equipped with capabilities to steal data from web browsers such as KMeleon and Pale Moon, and to steal cryptocurrency from obscure browser extensions like Firefox's Auvitas Wallet.

In terms of system information extraction, Rhadamanthys can capture a wide array of data. This includes:

-Computer name, username, RAM capacity, CPU cores, screen resolution

-Installed software, cookies, browsing history

-Saved credit cards and other sensitive information

Furthermore, Rhadamanthys targets credentials from a vast range of sources: FTP clients like Cyberduck and TotalCommander, mail clients such as Outlook and Thunderbird, and password managers like RoboForm and KeePass. It also has the capacity to extract information from VPN services, note-taking applications, messenger applications, and other services like Steam, TeamViewer, and SecureCRT.

Rhadamanthys shows a particular interest in cryptocurrency. One of its version updates had nearly half of its new features dedicated to exfiltrating and cracking cryptocurrency wallets. The list of targeted wallets is quite extensive and includes Auvitas, BitApp, Crocobit, Exodus, Finnie, ICONex, Metamask, and more.

In addition to the automatic actions, Rhadamanthys also allows for direct intervention by attackers. The malware offers a functionality to push new configurations to the “file grabbing” module, allowing specific files to be exfiltrated. For a more hands-on approach, attackers can execute hand-crafted PowerShell scripts on the victim machine. This added flexibility provides a high degree of control over the infected system.

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Rhadamanthys Stealer Technical Details

Written in C++, Rhadamanthys employs a number of sophisticated techniques to ensure its stealth and efficacy. Its operational chain is usually divided into three components:

-the Dropper,

-the Rhadamanthys Loader (second shellcode)

-and the Rhadamanthys Stealer (Nsis module).

In one attack observed the wild, the Dropper initiated the process by executing the shellcode through a callback function. This bypassesed common security measures that track shellcode execution methods like CreateThread or CreateRemoteThread.

Next, the Rhadamanthys Loader, or the second shellcode, comes into play. This shellcode uses several evasion methods. It manipulates exception handling to maintain low visibility, creates a Mutex to simulate legitimate processes, and unhooks API calls to avoid detection. In addition to these, it is responsible for decrypting the malware configuration and managing its network functions.

Lastly, the Rhadamanthys Stealer, or the Nsis module, is activated. Some samples have the ability to manipulate AVAST’s AMSI-related modules to avoid detection. It is this component that ultimately executes the data theft.

Rhadamanthys Stealer Dynamic Analysis

Being a stealer, Rhadamanthys tries to operate as secretively as possible, remaining under the radar and avoiding detection. The malicious activity starts right after infection — Rhadamanthys extracts information from the system and tries to send it to the Command & Control servers.

The execution chain may vary a little — some versions of the Trojan have the ability to inject into system processes, while others simply execute themselves.

It also may delay execution and sleep for some time after infection or use utilities like PowerShell to run commands.

Rhadamanthys’s network traffic Rhadamanthys’s network traffic

Thanks to the network packets structure, Rhadamanthys can be detected by Suricata rules.

Rhadamanthys Stealer Distribution Methods

Rhadamanthys info-stealer employs a couple of key strategies to infiltrate systems. One of its infamous шstribution techniques involves hijacking Google ads, where it covertly replaces the original content with a link to the malware.

It also uses phishing webpages and malicious spam for propagation. In malspam campaigns, a PDF file triggers victims to download the malware. The PDF file was observed presenting a fake Adobe Acrobat DC software update prompt which, when clicked, initiates the execution of the malware.

In phishing-based distribution, the malware creators build fake webpages mimicking legitimate services like Zoom or AnyDesk. Links to these fraudulent sites are then spread via Google ads. These malicious sites facilitate the download of the Rhadamanthys infostealer disguised as a legitimate installer. Consequently, the target unknowingly downloads the malware without noticing the infection.

Conclusion

Boasting an extensive stealing feature set that may well be unmatched among similar types of malware, Rhadamanthys has the potential to emerge as a significant threat in the cybersecurity landscape. We strongly recommend analysts to delve into this threat while it's still relatively new on the scene.

Conveniently, dynamic analysis of Rhadamanthys can be easily carried out on platforms such as ANY.RUN — our cloud interactive sandbox allows for a deeper understanding of its execution process and facilitates the collection of valuable Indicators of Compromise (IOCs).

Investigating the nuances of Rhadamanthys not only aids in its containment but also prepares us for future threats that may adopt a similar design strategy.

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