TA551 (Shathak) pushes IcedID (Bokbot)
Introduction
TA551 (also known as Shathak) represents a threat actor behind malspam that has pushed different families of malware over the past few years. So far this week, TA551 is pushing IcedID (Bokbot).
Shown above: Flow chart for this infection.
Images from an infection
Shown above: Screenshot from a TA551 email with sensitive information removed.
Indicators of Compromise (IOCs)
The infection process was similar to my previous diary about TA551 from August 2021, but this time it delivered IcedID instead of BazarLoader.
Associated malware:
SHA256 hash: d68fb04c96e925efcdb3484669365bed0cda22a272e486e99a43f9626019d31c
- File size: 38,958 bytes
- File name: request.zip
- File description: Password-protected zip archive attached to email
- Password: 55egs
SHA256 hash: 0a42f6762ae4f3b1d95aae0f8977cde6361f1d59b5ccc400c41772db0205f7c5
- File size: 34,322 bytes
- File name: charge_12.01.2021.doc
- File description: Word doc with macros for IcedID
SHA256 hash: c7f40608ce8a3dda25c13d117790d08ef757b07b8c2ccb645a27a71adc322fb2
- File size: 3,342 bytes
- File location: C:\Users\[username]\Documents\youTube.hta
- File description: HTA file dropped after enabling Word macros
SHA256 hash: d54a870ba5656c5d3ddfab5f7f325c2fb8ee256b25e2872847c5ff244bc6ee6e
- File size: 257,672 bytes
- File location: hxxp://winrentals2017b[.]com/tegz/[long string of characters]/cab3?ref=[long string of characters]
- File location: C:\Users\Public\dowNext.jpg
- File description: Installer DLL for IcedID
- Run method: regsvr32.exe [filename]
SHA256 hash: cfc202b44509f2f607d365858a8218dfdc6b26f8087efcc5e46f4fef9ab53705
- File size: 341,898 bytes
- File location: C:\Users\[username]\AppData\Roaming\ReliefEight\license.dat
- File description: license.dat data binary used to run persistent IcedID DLL
SHA256 hash: c340ae2dde2bd8fbae46b15abef0c7e706fe8953c837329bde409959836d6510
- File size: 116,224 bytes
- File location: C:\Users\[username]\AppData\Roaming\{24DB904E-86F7-2F2C-B7C1-85D8BBCE1181}\Miap\Giowcosi64.dll
- File description: persistent IcedID DLL
- Run method: rundll32.exe [filename],DllMain --giqied="[path to license.dat]"
IcedID traffic:
- 143.204.155[.]37 port 443 - aws.amazon[.]com - HTTPS traffic
- 87.120.254[.]190 port 80 - normyils[.]com - GET / HTTP/1.1
- 87.120.8[.]98 port 443 - baeswea[.]com - HTTPS traffic
- 91.92.109[.]95 port 443 - bersaww[.]com - HTTPS traffic
Final words
IcedID can be followed by Cobalt Strike when an infected host is part of an Active Directory (AD) environment. These types of infections can deliver ransomware as a final payload in real-world environments.
But decent spam filters and best security practices can help you avoid IcedID. Default security settings in Windows 10 and Microsoft Office 2019 should prevent these types of infections from happening.
---
Brad Duncan
brad [at] malware-traffic-analysis.net
Comments
Anonymous
Dec 3rd 2022
9 months ago
Anonymous
Dec 3rd 2022
9 months ago
<a hreaf="https://technolytical.com/">the social network</a> is described as follows because they respect your privacy and keep your data secure. The social networks are not interested in collecting data about you. They don't care about what you're doing, or what you like. They don't want to know who you talk to, or where you go.
<a hreaf="https://technolytical.com/">the social network</a> is not interested in collecting data about you. They don't care about what you're doing, or what you like. They don't want to know who you talk to, or where you go. The social networks only collect the minimum amount of information required for the service that they provide. Your personal information is kept private, and is never shared with other companies without your permission
Anonymous
Dec 26th 2022
9 months ago
Anonymous
Dec 26th 2022
9 months ago
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> nearest public toilet to me</a>
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> public bathroom near me</a>
Anonymous
Dec 26th 2022
9 months ago
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> nearest public toilet to me</a>
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> public bathroom near me</a>
Anonymous
Dec 26th 2022
9 months ago
Anonymous
Dec 26th 2022
9 months ago
https://defineprogramming.com/
Dec 26th 2022
9 months ago
distribute malware. Even if the URL listed on the ad shows a legitimate website, subsequent ad traffic can easily lead to a fake page. Different types of malware are distributed in this manner. I've seen IcedID (Bokbot), Gozi/ISFB, and various information stealers distributed through fake software websites that were provided through Google ad traffic. I submitted malicious files from this example to VirusTotal and found a low rate of detection, with some files not showing as malware at all. Additionally, domains associated with this infection frequently change. That might make it hard to detect.
https://clickercounter.org/
https://defineprogramming.com/
Dec 26th 2022
9 months ago
rthrth
Jan 2nd 2023
8 months ago