IcedID

IcedID is a banking trojan-type malware which allows attackers to utilize it to steal banking credentials of the victims. IcedID aka BokBot mainly targets businesses and steals payment information, it also acts as a loader and can deliver another viruses or download additional modules.

Type
Trojan
Origin
Unknown
First seen
1 September, 2017
Last seen
25 January, 2023
Also known as
BokBot
Global rank
37
Week rank
25
Month rank
26
IOCs
26842

What is IcedID?

IcedID is a banking trojan-type malware that allows attackers to utilize it to steal the banking credentials of the victims. IcedID aka BokBot mainly targets businesses and steals payment information, it also acts as a loader and can deliver other viruses or download additional modules.

Researchers identified IcedID for the first time in Autumn 2017 when the first victims suffered from attacks by this malware. Upon further investigation, researchers revealed that IcedID is a modular virus that carries very advanced functions. In addition, it was initially reported that IcedID does not seem to feature any borrowed or stolen code from other trojans which is atypical for more developed malware samples like the one we are dealing with today.

General description of IcedID malware

It is thought that IcedID is being operated by a group of threat actors with connections to Eastern European cyber-bands. In addition, criminals behind IcedID are known to collaborate with creators or distributors of Emotet and TrickBot.

IcedID attacks are targeted mostly at banks in North America and a few select banking organizations in the United Kingdom. This malware targets mostly corporate bank accounts, payment card providers, mobile services providers, payroll, webmail, and e-commerce sites. We were not able to find any information about attacks directed at private users at this point.

However, this very well might change at some point in the future as evidence suggests that the criminals behind IcedID are preparing new and, possibly, bigger campaigns. There have appeared several removal tools, so it's no wonder hackers try to level the game up. As a matter of fact, network propagation functionality was added to this malware, giving it the ability to move across various endpoints.

Speaking of additions, IcedID is being actively maintained and upgraded by its authors despite several removal tools. For example, the second version of the virus significantly reworked the code and made the IcedID modular, giving it the ability to fetch plugins on-demand after the execution of the base file. This made the virus much harder to detect and defend against. While it is generally believed that this virus relies 100% on code created from scratch, some researchers suggest that the malware does, in fact, reuse code from version 2.0 of Pony malware. Apparently, the borrowed function is in charge of stealing data from email accounts although Pony code may have been used for other applications within the virus.

Unfortunately, constant upgrades are most likely one of the leading factors that contributed to the rising popularity of this trojan. This is bad news especially considering that this trojan is already using extremely advanced techniques as complex web injects.

Once the execution process is complete, IcedID creates a local proxy to intercept and control all web traffic of the infected user.

When the malware detects that a victim is navigating to the bank's website, IcedID can redirect the user to a replica of the webpage located on the server that is controlled by the attackers. Threat actors carefully reconstruct the webpage and make the experience as seamless as possible for the victim by maintaining an active connection with the real website all the time. This allows IcedID to use the correct URL in the address bar and even display a legit SSL certificate.

Of course, from this point on every action of the user is being recorded and social engineering is used to retrieve as many credentials and administrative information as possible.

IcedID malware analysis

A video recorded in the ANY.RUN interactive malware hunting service shows the execution process of IcedID. Users can utilize this information to take a deep dive into how this malware functions under the hood.

icedid execution process graph Figure 1: Shows the graph of processes generated by the ANY.RUN malware hunting service.

text report of the IcedID analysis Figure 2: ANY.RUN allows creating customizable text reports that contain detailed and nicely structured information. This function is perfect for making presentations.

IcedID execution process

IcedID authors constantly make changes to the malware, so its execution process can dramatically vary from one version to another.

Our example was distributed in the form of a malicious Microsoft Office document with macro. Maldocs macro dropped an obfuscated command-line file and started its execution. Wscript.exe was started through the command-line execution process to download the payload which was, in turn, executed by cmd.exe. After the payload started its execution, it injected into the svchost.exe process which, then, activated malicious activities such as stealing personal data, establishing a connection with the C2 server, creating scheduled tasks, and more.

Distribution of IcedID malware

IcedID uses a typical delivery method for banking trojans — attackers distribute it in malicious Microsoft Office documents that prompt the users to enable macros and, once it is done, activate the download of the executable to the victim's machine.

The unique aspect of IcedID distribution campaigns lies in the meticulous approach to email crafting that threat actors employ. While most malware types that use email campaigns as the mains distribution channel tend to target the broadest audience they can, IcedID authors choose to work with much narrower focus groups and craft every email with greater detail than the usual standard in the industry.

While any email with a malicious attachment is designed to lower your guard and make you download and open the file, usually attackers pick very general topics with little to no personalization.

IcedID authors use spear-phishing techniques, meaning that they learn details about their victims and use them to increase the effectiveness of their emails. If a latter carrying IcedID is directed at a car dealer from Arizona, it is likely to contain information about a car dealership in Arizona, references to local companies or even colleagues of the victim.

The creation of such targeted campaigns requires hackers to devote time to investigative work in preparation for each bunch of emails, but it is guaranteed to make messages look less like a scam and more like legit business communication.

It should be noted that in some cases IcedID may infect the system in tandem with other malware samples. It can download and can be downloaded by malware such as Emotet or TrickBot trojans.

How to detect IcedID?

This malware creates files that allow analysts to detect it with a high degree of certainty. To detect IcedID, Open the "Files" tab in the lower part of the task's window and take a look at the created files. If you see folders with names such as "lchej" and "ydmfipkzqfsb" within C:\Users\admin\AppData\Local\ directory and files with names "pczapabclgpba", "mtkdonmlmxelaa", "ozwzefgpkzmzba", and "zcnejolyretaa", as shown on the figure below, be sure that it is IcedID in front of you.

how to detect icedid Figure 3: File created by IcedID malware

Summary

IcedID trojan is one of the examples of the new generation of malware. Although it was built from the ground up by its creators, it uses a lot of unique code and has functions not much inferior to those found in the most advanced older viruses such as Trickbot.

However, what makes IcedID potentially even more dangerous is the evolved mentality of its authors, who use spear-phishing to increase the effectiveness of their distribution campaigns.

Before, we could secure ourselves from a lot of threats by removal tools and raising awareness about the dangers of suspicious emails and infected documents. With IcedID we need to rely more on technological lines of defense since some email templates that authors have used and will use again are indistinguishable from real professional communication.

Here, at ANY.RUN it is our job to provide cybersecurity researchers with all the necessary tools to study and neutralize threats like IcedID and we hope that you will find these tools extremely useful in your line of work!

IOCs

IP addresses
207.154.202.192
138.197.195.62
209.97.134.125
104.248.153.44
159.89.43.72
159.223.109.133
134.209.170.133
94.140.114.143
134.209.107.62
137.184.94.136
94.140.114.184
164.92.104.194
103.208.86.7
5.181.80.214
204.11.56.48
23.202.231.167
23.202.231.167
185.150.119.123
104.21.1.144
172.67.152.66
Hashes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vcctggqm3t.dattolocal.net
booking.msg.bluhotels.com
booking.msg.bluhotels.com
0.pool.ntp.org
carder.bit
zerit.top
fuyt.org
tzgl.org
kotob.top
tbpws.top
bigblog.at
astdg.top
securebiz.org
zoomvideo.site
brandyjaggers.com
santat7kpllt6iyvqbr7q4amdv6dzrh6paatvyrzl7ry3zm72zigf4ad.onion
isns.net
secondlivve.com
zwfgygpztq.com
frederikkempe.com

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