IP Address: 189.34.104.143Previously Malicious

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IP Address:
189.34.104.143​
Previously Malicious

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

Threat Information

Role

Attacker

Services Targeted

SMB

Tags

IDS - Attempted Administrator Privilege Gain User Added to Group MS17-010 SMB Download and Execute IDS - A Network Trojan was detected User Created System File Modification Service Configuration Listening Known Malware CMD Outgoing Connection SMB Null Session Login User Removed PowerShell Access Suspicious Domain

Connect Back Servers

worldsender.info

173.247.239.186 223.25.247.240 74.222.14.94 139.5.177.10

Basic Information

IP Address

189.34.104.143

Domain

-

ISP

NET Virtua

Country

Brazil

WHOIS

Created Date

-

Updated Date

-

Organization

-

First seen in Guardicore Centra

2019-04-28

Last seen in Guardicore Centra

2019-09-08

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

IDS detected A Network Trojan was detected : ETERNALBLUE Probe Vulnerable System Response MS17-010

IDS - A Network Trojan was detected

IDS detected Attempted Administrator Privilege Gain : Windows SMB remote code execution attempt

IDS - Attempted Administrator Privilege Gain

The machine was exploited using the ms17-010 vulnerability

Process c:\windows\system32\windowspowershell\v1.0\powershell.exe generated outgoing network traffic to: 74.222.14.94:80

Outgoing Connection

PowerShell session started by c:\windows\system32\windowspowershell\v1.0\powershell.exe 2 times

User admin$ was created with the password ************* and added to groups: Administrators

User Added to Group User Created

Process c:\windows\system32\windowspowershell\v1.0\powershell.exe generated outgoing network traffic to: 139.5.177.10:80, 173.247.239.186:80 and 74.222.14.94:80

Outgoing Connection

The file C:\Windows\System32\ok.exe was downloaded and executed

Download and Execute

The file C:\Windows\System32\upsupx.exe was downloaded and executed

Download and Execute

Process c:\windows\system32\upsupx.exe started listening on ports: 32831

Listening

System file C:\Windows\AppCompat\Programs\Amcache.hve was modified

System File Modification

Process c:\windows\system32\u.exe generated outgoing network traffic to: 223.25.247.240:80

Outgoing Connection

Process c:\windows\system32\u.exe attempted to access suspicious domains: worldsender.info

Access Suspicious Domain Outgoing Connection

Associated Files

C:\Windows\System32\ok.exe

SHA256: a3bb132ab1ba3e706b90d6fb514504105f174c4e444e87be7bce1995f798044d

2241024 bytes

C:\Windows\Temp\conhost.exe

SHA256: 790c213e1227adefd2d564217de86ac9fe660946e1240b5415c55770a951abfd

221184 bytes

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IP Address: 189.34.104.143​Previously Malicious