# SANS ISC: TA551 (Shathak) pushes IcedID (Bokbot) - SANS Internet Storm Center SANS Site Network Current Site SANS Internet Storm Center Other SANS Sites Help Graduate Degree Programs Security Training Security Certification Security Awareness Training Penetration Testing Industrial Control Systems Cyber Defense Foundations DFIR Software Security Government OnSite Training SANS ISC InfoSec Forums

**[isc.sans.edu/forums/diary/TA551+Shathak+pushes+IcedID+Bokbot/28092/](https://isc.sans.edu/forums/diary/TA551+Shathak+pushes+IcedID+Bokbot/28092/)**

**_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_**


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_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](https://isc.sans.edu/forums/diary/TA551+Shathak+continues+pushing+BazarLoader+infections+lead+to+Cobalt+Strike/27738/)
this time it delivered IcedID instead of BazarLoader.

Associated malware:

SHA256 hash:
[d68fb04c96e925efcdb3484669365bed0cda22a272e486e99a43f9626019d31c](https://bazaar.abuse.ch/sample/d68fb04c96e925efcdb3484669365bed0cda22a272e486e99a43f9626019d31c/)

File size: 38,958 bytes
File name: request.zip
File description: Password-protected zip archive attached to email
Password: 55egs

[SHA256 hash: 0a42f6762ae4f3b1d95aae0f8977cde6361f1d59b5ccc400c41772db0205f7c5](https://bazaar.abuse.ch/sample/0a42f6762ae4f3b1d95aae0f8977cde6361f1d59b5ccc400c41772db0205f7c5/)

File size: 34,322 bytes
File name: charge_12.01.2021.doc
File description: Word doc with macros for IcedID

[SHA256 hash: c7f40608ce8a3dda25c13d117790d08ef757b07b8c2ccb645a27a71adc322fb2](https://bazaar.abuse.ch/sample/c7f40608ce8a3dda25c13d117790d08ef757b07b8c2ccb645a27a71adc322fb2/)

File size: 3,342 bytes
File location: C:\Users\[username]\Documents\youTube.hta


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File description: HTA file dropped after enabling Word macros

[SHA256 hash: d54a870ba5656c5d3ddfab5f7f325c2fb8ee256b25e2872847c5ff244bc6ee6e](https://bazaar.abuse.ch/sample/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](https://bazaar.abuse.ch/sample/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](https://bazaar.abuse.ch/sample/c340ae2dde2bd8fbae46b15abef0c7e706fe8953c837329bde409959836d6510/)

File size: 116,224 bytes
File location: C:\Users\[username]\AppData\Roaming\{24DB904E-86F7-2F2C-B7C185D8BBCE1181}\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.

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Brad Duncan
brad [at] malware-traffic-analysis.net

Brad

433 Posts
ISC Handler
Dec 3rd 2021


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