Revenge

Revenge was one of the most popular remote access trojans to be used in 2019 when it was featured in a huge malicious campaign named “Aggah”. This malware can take remote control of infected machines and spy after the victims.

Type
Trojan
Origin
Unknown
First seen
1 January, 2016
Last seen
19 January, 2021
Global rank
33
Week rank
21
Month rank
20
IOCs
2470

What is Revenge Malware?

Revenge belongs to the class of Remote Access Trojans which means that it is usually used by the attackers to control infected PCs remotely or spy on the users by monitoring keystrokes and even computer surroundings through the remote webcam and microphone access.

Discovered for the first time in 2016, Revenge RAT continues to be a threat at the present day with a big spike in popularity monitored in 2019, when the malware was observed targeting corporations and government structures all around the world in a massive malicious campaign codenamed “Aggah”. Thanks to a large variety of distribution methods, robust core feature-set, and solid persistence mechanisms, Revenge has become a popular choice for cybercriminals. The popularity of this RAT was further aided by its open-source nature – anybody can freely download Revenge on underground hacking forums and employ it in their own campaigns.

General description of Revenge

The Revenge RAT was first observed in the wild in June 2016, when it was released by a user with a nick Napoleon – an Arabic speaking member of the underground hacking community.

The initial version of this malware was a simple malicious program that didn’t offer much, if any, code obfuscation and was mainly used by other Arabic speaking cybercriminals. Despite the simplicity of the malware, at the time, only one out of 54 of VirusTotal scanners could pick up the malicious nature of the Revenge code, which confused the researchers bearing in mind the lack of anti-analysis techniques.

The creator used Visual Basic to develop this RAT and personally admitted that the malware was very bare-bones at the time of its initial release– providing only the most basic functions and definitely losing to competitors in terms of core feature-set. According to Napoleon, this explained why Revenge was available free of charge.

After two months since the initial release, a new version v0.2 was issued by the author, on a more popular hacking forum, this time with more features, but still offered completely free of charge. Since then Revenge has evolved even further and today, it offers cybercriminals a wide range of capabilities including remote files and registry alterations on an infected machine, access to memory, processes and services as well as access to connected devices such as keyboards, webcams and mice, allowing this malware to record the actions of its victims and collect information like banking credentials and social account data.

Core malicious feature-set was not the only thing that evolved over the course of the Revenge lifetime. Improvements in distribution and persistence made this threat truly a force to be reckoned with. In some campaigns, scripts were executed in the HTML of a custom blogspot [com] page.

Revenge malware analysis

A video recorded in the ANY.RUN malware hunting service allows us to take a look at the execution of this malware as it unfolds.

process graph of the revenge trojan execution Figure 1: Displays the lifecycle of Revenge in a visual form. A graph generated by ANY.RUN

text report of the revenge analysis Figure 2: Shows a customizable text report generated by the ANY.RUN malware analysis service which allows diving deeper into the details of the Revenge execution process.

Revenge execution process

Sometimes the first steps of Revenge trojan execution may vary depending on how it made its way into a victim's computer. The most common form of initial infiltration vector is by the use of Mshta.exe for downloading the payload or for direct execution from a URL. After the payload is delivered to the infected machine, Mshta.exe changes the autorun value in the registry and starts three processes - cmd.exe, powershell.exe and schtasks.exe. It starts cmd.exe to kill processes from a list, in the given example processes from Microsoft Office packet were targeted. Powershell.exe is being launched to download the main payload. In turn, schtasks.exe is launched in a way to generate a scheduled task which provides Revenge persistence in the infected system. After all these steps, the malware is ready to complete commands from C2 servers.

How to avoid infection by Revenge?

The best line of defense against threats like Revenge RAT is to keep a security product installed and updated with the latest firmware. One should not disable native Windows security features, regularly update the OS and adhere to the best security practices of staying safe online.

As such, it is advised to stay clear of downloading email attachments from unknown senders and never enabling macros in Microsoft Office if prompted to do so by a file downloaded from a suspicious email.

Distribution of Revenge

Revenge has been seen being distributed in a variety of ways, some of which are potentially more effective than others. For example, Revenge is known to infect PCs from malicious email attachments and corrupted ads on compromised websites.

Most commonly, once delivered in the Microsoft Office file that was downloaded and launched by the potential victim, Revenge will use macros to connect to an outside domain, sometimes hidden on a web page, from which additional scripts and content are downloaded until the actual malware is installed on the PC.

How to detect Revenge RAT using ANY.RUN?

Analysts can get information about which MITRE ATT&CK™ MATRIX techniques were applied by malware. Just click on the "ATT&CK™ MATRIX " button.

Revenge MITRE ATT&CK MATRIX techniques Figure 3: Revenge MITRE ATT&CK MATRIX techniques

Conclusion

Revenge is no slouch when it comes to Remote Banking Trojans. It has begun it’s lifespan as a simplistic malware with functionality and without anti-analysis features but has evolved to become a capable and persistent trojan used in massive attacks in Europe, North America, Asia, and the Middle East.

The popularity of this malware is not only due to its robust feature-set, but also ready availability since Revenge can be downloaded for free from a number of underground communities.

Professionals can establish a secure cyber defense against Revenge and similar RATs and secure their corporate or government networks by reverse engineering and studying a threat using malware hunting services like to ANY.RUN.

IOCs

IP addresses
3.22.53.161
3.138.180.119
80.82.68.21
193.161.193.99
3.131.147.49
3.136.65.236
3.133.207.110
3.22.15.135
3.134.125.175
78.138.99.214
3.14.182.203
3.17.7.232
52.14.18.129
192.3.118.155
3.13.191.225
3.129.187.220
3.22.30.40
218.52.79.156
173.170.111.212
3.125.223.134
Hashes
73f113a6146224c4a1f92f89055922a28322787c108e30000a0a420fa46ed9e2
0d328fd10531609978e71afbb0c2500a84dcdc794cfcbff0896e0f8ce67d2ce8
cebbde5351d1d9b8edfee71130ab0f00907572540278c271d026be2b5dc86b9e
9e4e866df9e74c910938d1423a150c42aba6306a97cf8dcf022b33de8cff5e09
203c87c30eb90dd418f4bf49f46d480116fbd21ea94389ebcbf5b51239903a78
a6ce93187f2f9c54395d0c147f8b09cacafa2cc794a022d812f879f34cd4dca3
24fc129d5d51bede05eac9944952dbe143f27ac4ea199d398dc9c184b15ee495
06ff363b7f9f0c6d3642e169e59d16d75d8f6499ac512142a059e95d844cd569
db72e8c52463521e21d5063a9cc5d025358d9813db2e5c6d73106ea02e40d51b
b810a223f1aca5a59443815accedfe94ae08b992b087ec2faaca7b3bc324ad67
4b8e178bb09d26df73a813ae1bfc56547bb224b18f2b50db6c6febda84f5532e
235d3f96a78ce2dad584e6eb1a25fc386b3ae5e332c4d3c56f03b0a4978be778
e4efcac5a3e195ddeb209bb5a655d0fee009ab56d26738c6f4e54648379bf743
b47eed224ce0c75e09dbdabc3b30845193a9c2d20028cbbe2ad9abb2d4c98ae0
c125ad338e09169f93f9ba82a8eb533619ae2087dd2a84563da1c6a3ef68e3d1
7a538b979c2a126fb287ed7bbb18ac55687273dfbac2c09de85f073c9bf5e3df
d76a28e3f1a94b0f08af91f64bfcd8cb19d6259965c18d72c4d80db9cce17af8
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3
3ac39ece6e1953f03e88fdfb942bf9f0dcb8d1da643cbd9677032f2ac7861d03
899e3dc3fe671362d9fdea1e799dc552ffc9036660ad2aae83d569f12f721592
Domains
2.tcp.ngrok.io
isns.net
4.tcp.ngrok.io
coodyz.site
mike101.duckdns.org
majul.com
5f862d9fc543.ngrok.io
99e94c1ba867.ngrok.io
3fbcc609b128.ngrok.io
0736ef905fff.ngrok.io
44dca0bcc061.ngrok.io
8dc90d45961e.ngrok.io
9813b3e1debe.ngrok.io
compte-client-ameli-remboursement-fr.ngrok.io
05eca2b70a29.ngrok.io
a234b459b6e0.ngrok.io
a234b459b6e0.ngrok.io
28e8ad52aeaf.ngrok.io
bbcadd17adea.ngrok.io
d6e52dc32552.ngrok.io

HAVE A LOOK AT

Adwind screenshot
Adwind
adwind trojan
Adwind RAT, sometimes also called Unrecom, Sockrat, Frutas, jRat and JSocket is a Malware As A Service Remote Access Trojan that attackers can use to collect information from infected machines. It was one of the most popular RATs in the market in 2015.
Read More
Agent Tesla screenshot
Agent Tesla
agenttesla trojan rat stealer
Agent Tesla is spyware that collects information about the actions of its victims by recording keystrokes and user interactions. It is falsely marketed as a legitimate software on the dedicated website where this malware is sold.
Read More
Ave Maria screenshot
Ave Maria
avemaria stealer trojan rat
Ave Maria malware is a Remote Access Trojan that is also called WARZONE RAT. Hackers use it to control PCs of their victims remotely and steal information from infected PCs. For example, they can remotely activate the camera to take pictures of a victim and send them to a control server
Read More
Azorult screenshot
Azorult
azorult trojan rat
AZORult can steal banking information including passwords and credit card details as well as cryptocurrency. This constantly updated information stealer malware should not be taken lightly, as it continues to be an active threat.
Read More
Crimson RAT screenshot
Crimson RAT
crimson rat trojan
Crimson is a Remote Access Trojan — a malware that is used to take remote control of infected systems and steal data. This particular RAT is known to be used by a Pakistani founded cybergang that targets Indian military objects to steal sensitive information.
Read More
Danabot screenshot
Danabot
danabot trojan stealer
Danabot is an advanced banking Trojan malware that was designed to steal financial information from victims. Out of the Trojans in the wild this is one of the most advanced thanks to the modular design and a complex delivery method.
Read More