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DCRat

19
Global rank
17 infographic chevron month
Month rank
14
Week rank
0
IOCs

DCrat, also known as Dark Crystal RAT, is a remote access trojan (RAT), which was first introduced in 2018. It is a modular malware that can be customized to perform different tasks. For instance, it can steal passwords, crypto wallet information, hijack Telegram and Steam accounts, and more. Attackers may use a variety of methods to distribute DCrat, but phishing email campaigns are the most common.

RAT
Type
ex-USSR
Origin
1 July, 2018
First seen
14 October, 2024
Last seen
Also known as
Dark Crystal RAT

How to analyze DCRat with ANY.RUN

RAT
Type
ex-USSR
Origin
1 July, 2018
First seen
14 October, 2024
Last seen

IOCs

IP addresses
79.137.248.10
171.80.251.128
39.46.125.107
45.66.231.227
23.237.174.3
185.181.0.21
23.237.174.2
91.92.254.46
46.246.84.5
3.131.147.49
46.246.4.3
46.246.84.12
46.246.84.17
46.246.6.16
46.246.86.8
46.246.84.8
18.231.93.153
46.246.80.15
46.246.14.16
80.87.202.63
Hashes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localcdndownload.top
651949lm.nyashkoon.top
hellokitty.top
rdponline.top
549578cm.n9sh.top
minedownload.top
aidvwbpa.top
ratelimit.top
583784cm.n9shka.top
585362lm.nyashkoon.top
shto.top
211277cm.nyashland.top
602463cm.nyashsens.top
415366cm.nyashka.top
061657cm.nyashkoon.top
cl08031.tw1.ru
cx11830.tw1.ru
387617cm.nyashkoon.top
684386.clmonth.nyashteam.top
124014cm.nyashnyash.top
URLs
http://81888.cllt.nyashteam.ru/nyashsupport.php
http://81888.cllt.nyashteam.ru/nyashsupport
http://a1040171.xsph.ru/L1nc0In.php
http://erik16r1.beget.tech/L1nc0In.php
https://raw.githubusercontent.com/psychoartistlua/FEbypass/refs/heads/main/fileee
http://kitaygorod.top/EternalProcessorMultiwordpressdleTempcentraltemporary
http://vitamind3.top/videoPacketprocesslocalUploads
http://193.109.78.76/8dump4cdn/sqlProviderhttp/VideoCdn2External/5LongpollProtect/Request4Traffic/proton/Flowerlinux6Default/4httpCpu/protectAuth/poll/ProviderPythonjsbigloadDb
http://vitamind3.top/videoPacketprocesslocalUploads.php
http://countepb.beget.tech/3f907916.php
http://countepb.beget.tech/3f907916
http://wefwe23f2m.temp.swtest.ru/_Defaultwindows
http://37.230.117.59/imageVmLongpolluniversal.php
http://cu14777.tw1.ru/e7da6f32
http://f0908023.xsph.ru/L1nc0In.php
http://sigmaphpog.atwebpages.com/10fa516e.php
http://sigmaphpog.atwebpages.com/10fa516e
http://863811cm.nyafka.top/video_RequestpacketUpdategeneratorPublic
http://92.63.192.30/generatorServer/PrefWarWarlimit/coreAutoantianti/mobilelog/tracemessagelocal/log/pluginprod/prodcorescriptsupport/screensupportlimit/Python/mobilemessageCampool/screenCpuMath/binlogmobileDjango/Eternalsecuredefaultasynctemp.php
http://a1040350.xsph.ru/2a88de23.php
Last Seen at

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What is DCRat malware?

DCRat, also known as Dark Crystal RAT, is a remote access trojan (RAT) that lets threat actors take control over an infected machine and extract users’ data, such as the information copied to the clipboard and personal credentials from apps. The malware is known for its stealthiness and its ability to evade detection by security software. DCrat has been in operation since 2018, yet it regularly undergoes changes aimed at advancing and expanding its capabilities.

The malware consists of several components each responsible for a certain type of malicious activity, including stealing of cryptocurrency and keylogging. On top of that, the authors of DCrat have published a special software called DCRat Studio, which serves as a tool for developing new modules for the malware.

DCrat's popularity can be attributed in part to its low cost. Its one-month license goes for a mere $5, while a lifetime one is available for $40. This is a stark contrast to other malware-as-a-service options. For instance, a lifetime AgentTesla subscription will require forking out $120. According to researchers, such prices are due to the malware being simply a pet project of a single developer, who does not work on it full-time. The developer is likely based in the ex-USSR region.

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Technical details of the DCRat malicious software

Although back in 2018, the malicious program utilized Java, it switched to C# in 2019. As a result, nowadays, the majority of Dark Crystal RAT’s modules are written in the C# programming language. However, the administrative server for this malware is developed with JPHP, which is an implementation of PHP that relies on the Java Virtual Machine.

Different samples of the malware have been observed to be outfitted with evasion and obfuscation techniques. For instance, in order to create a layer of protection against malware analysts’ attempts to reverse engineer its code, DCrat’s payload can be obfuscated with Enigma Protector.

The standard set of tools available to threat actors using DCrat includes:

  • DCRat can record the victim's keystrokes, which can be used to steal passwords and other sensitive information.
  • The separate CryptoStealer module of the malware allows attackers to get access to users’ crypto wallet information.
  • It can collect information about the system (CPU and GPU stats, etc.)
  • It can take screenshots of the victim's computer, which can be used to monitor their activity.
  • DCRat can exfiltrate information from browsers, such as session cookies, auto-fill credentials, and credit card details.
  • The malware can transmit the contents of the victim's clipboard to its command-and-control server (C&C).
  • It can hijack Telegram, Steam, Discord accounts.
  • DCrat can function as a loader, dropping other types of malware on the infected computer.

Additionally, DCrat can execute a persistence algorithm to retain control over the system. For instance, the malware can copy itself to a random running process and to the root directory (C:). It then can create shortcuts to these copies in the user's Startup folder. It can also add registry values that point to these shortcuts. This allows DCrat to start automatically when the computer boots up.

It is important to note that Dark Crystal RAT is polymorphic, meaning that attackers can use its builder functionality to add changes to the malware’s code to make it difficult to detect using traditional methods, such as file hash.

Execution process of DCRat

Uploading Dark Crystal RAT to the ANY.RUN sandbox lets you quickly see the malicious activities triggered by the malware. Here is a sample of DCrat executed in the interactive sandbox.

DCrat's flexibility makes it challenging to handle, but there are things that can help us pinpoint it. For example, DCrat rarely produces malicious activity in its current process. Like most malware, it prefers to create large process trees and then infiltrate a harmless process at some point to detonate later. By using ANY.RUN, we can easily identify the process targeted by the malware.

DCRat process tree DCRat's process tree

On top of that, it can delay execution for a period of time after the infection, drop executables, run embedded payloads, and use WMI queries to detect a virtualized environment or or to gain persistence in the system.

DCRat process tree DCRat's WMI queries

Distribution methods of the DCRat malware

Since Dark Crystal RAT is sold openly on the Internet, cyber criminals of all skill levels have access to it. Subsequently, there are many different methods they implement to drop the payload on victims’ computers. Yet, as is the case with most remote access trojans, including Vidar, njRAT, and QuasarRAT, DCrat’s main way of infecting a system is via phishing emails.

Threat actors devise sophisticated multi-staged attacks intended to manipulate the victim into believing that the fake email is actually legitimate and the attachment file it contains is safe to open. These downloadable files are usually in an office suite format, such as .docx or .xls, and have built-in macros or other mechanisms that can trigger the chain reaction which will result in DCRat being dropped onto the system.

There are also accounts of users unsuspectingly downloading a DCrat executable from websites distributing torrent files. In such cases, the malware can be disguised as a legitimate program. Once executed, the program installs the malicious program and runs it, stealing the user’s data often without them being aware of it.

Conclusion

Dark Crystal RAT is a remote access trojan that constitutes a significant concern for organizations and individuals worldwide. The malware’s low price tag and modular design make it an in-demand tool among cyber criminals. To protect your system from DCrat, you should be very careful about opening links or attachments from unknown senders.

Instead of taking the risk of downloading and opening potentially harmful files or clicking on malicious links, you can first analyze them in a sandbox environment like ANY.RUN. This will allow you to quickly and safely determine whether the file is malicious or not. ANY.RUN will also provide you with a detailed report about the malware, including its indicators of compromise (IOCs) and tactics, techniques, and procedures (TTPs). This information can be used to protect your organization from future attacks.

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