IP Address: 123.140.238.171Previously Malicious

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IP Address:
123.140.238.171​
Previously Malicious

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

Threat Information

Role

Attacker, Scanner

Services Targeted

SMB

Tags

SMB Null Session Login DNS Query IDS - A Network Trojan was detected Service Configuration Download and Execute Driver Start Service Stop MS17-010 Scheduled Task Creation Driver Creation User Added to Group Outgoing Connection Service Start Access Violation IDS - Attempted Administrator Privilege Gain HTTP Listening User Removed PowerShell User Created SMB Known Malware Service Creation CMD Access Suspicious Domain

Associated Attack Servers

pool.minexmr.com ctldl.windowsupdate.com apps.identrust.com js.1226bye.xyz worldsender.info grinknowledge.com ip.seeip.org

223.25.247.240 139.5.177.10 173.208.172.202 173.247.239.186 74.222.14.94

Basic Information

IP Address

123.140.238.171

Domain

-

ISP

LG DACOM Corporation

Country

Korea, Republic of

WHOIS

Created Date

-

Updated Date

-

Organization

-

First seen in Guardicore Centra

2019-06-23

Last seen in Guardicore Centra

2019-09-22

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

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

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

Outgoing Connection

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

User Created User Added to Group

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

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

Outgoing Connection Access Suspicious Domain

The file C:\Windows\Inf\msief.exe was downloaded and executed

Download and Execute

Process c:\windows\inf\lsmm.exe started listening on ports: 32832

Listening

Process c:\windows\inf\lsmm.exe attempted to access domains: pool.minexmr.com

DNS Query

The file C:\Windows\SysWOW64\drivers\64.exe was downloaded and executed

Download and Execute

The file C:\Windows\System\msinfo.exe was downloaded and executed 2 times

Download and Execute

The command line c:\windows\system\my1.bat was scheduled to run by modifying C:\Windows\Tasks\my1.job

The file C:\Windows\SysWOW64\wpcap.dll was downloaded and loaded by c:\windows\system\msinfo.exe

Download and Execute

The file c:\windows\syswow64\mfc42u.dll was downloaded and loaded by c:\windows\system\msinfo.exe

Download and Execute

The command line c:\windows\system\my1.bat was scheduled to run by modifying C:\Windows\System32\Tasks\my1

c:\windows\system32\services.exe installed and started c:\windows\system\msinfo.exe as a service named xWinWpdSrv under service group None

Service Start Service Creation

Service netprofm was stopped

Service Stop

Service NlaSvc was stopped

Service Stop

Process c:\windows\system\msinfo.exe attempted to access suspicious domains: apps.identrust.com and ip.seeip.org

DNS Query Access Suspicious Domain

Process c:\windows\system\msinfo.exe attempted to access domains: ctldl.windowsupdate.com

DNS Query

csrs.exe was downloaded

Download File

Process c:\windows\system32\regsvr32.exe attempted to access suspicious domains: js.1226bye.xyz

DNS Query Access Suspicious Domain

The file C:\Windows\System32\drivers\npf.sys was downloaded and loaded by system

Download and Execute

c:\windows\system32\services.exe installed and started system32\drivers\npf.sys as a service named NPF under service group None

Service Creation Driver Start

Connection was closed due to user inactivity

Associated Files

C:\Windows\System32\ok.exe

SHA256: a3bb132ab1ba3e706b90d6fb514504105f174c4e444e87be7bce1995f798044d

2241024 bytes

C:\Windows\SysWOW64\wpcap.dll

SHA256: b967e4dce952f9232592e4c1753516081438702a53424005642700522055dbc9

282360 bytes

C:\Windows\System\msinfo.exe

SHA256: 7ec433dd0454553b09f11c39944e251e3ee32e4981f52f02adc3011eb0ce6537

4887552 bytes

C:\Windows\System32\drivers\npf.sys

SHA256: 4bfaa99393f635cd05d91a64de73edb5639412c129e049f0fe34f88517a10fc6

36600 bytes

C:\Windows\Temp\conhost.exe

SHA256: 790c213e1227adefd2d564217de86ac9fe660946e1240b5415c55770a951abfd

221184 bytes

C:\Windows\Inf\msief.exe

SHA256: 3e79be51a78170ac177641b8225b22d37548617800ea0362733eeadc77445b98

305287 bytes

C:\Windows\Temp\v.exe

SHA256: fea935d2d0fb1abadb900f009b4c40bb8a91fd9e25cc76ed4f9dae08960566d5

662528 bytes

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IP Address: 123.140.238.171​Previously Malicious