IP Address: 175.31.188.138Previously Malicious

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IP Address:
175.31.188.138​
Previously Malicious

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

Threat Information

Role

Attacker

Services Targeted

MSSQL

Tags

DNS Query Successful MSSQL Login CMD Execute MsSql Shell Command Create MsSql Procedure WMI Method MSSQL Null Session Login File Operation By CMD Drop MsSql Table Powershell WMI Persistence Access Suspicious Domain Malicious File MSSQL Download and Execute MSSQL Brute Force IDS - Attempted User Privilege Gain Persistency - Logon Outgoing Connection

Connect Back Servers

kr1s.ru nic.ru iplogger.co down.mys2016.info js.mys2016.info

195.208.1.107 81.177.135.35

Basic Information

IP Address

175.31.188.138

Domain

-

ISP

China Telecom JILIN

Country

China

WHOIS

Created Date

-

Updated Date

-

Organization

-

First seen in Guardicore Centra

2018-05-27

Last seen in Guardicore Centra

2018-05-30

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

A user logged in using MSSQL with the following credentials: sa / ****** - Authentication policy: White List (Part of a Brute Force Attempt)

MSSQL Brute Force Successful MSSQL Login

MSSQL procedures were created: sp_password , sp_addsrvrolemember , sp_addextendedproc , sp_droplogin and sp_addlogin

Create MsSql Procedure

IDS detected Attempted User Privilege Gain : sp_password - password change

IDS - Attempted User Privilege Gain

IDS detected Attempted User Privilege Gain : xp_cmdshell - program execution

IDS - Attempted User Privilege Gain

IDS detected Attempted User Privilege Gain : xp_reg* - registry access

IDS - Attempted User Privilege Gain

IDS detected Attempted User Privilege Gain : SQL sp_configure - configuration change

IDS - Attempted User Privilege Gain

C:\Windows\System32\wbem\123.bat was identified as malicious by YARA according to rules: Suspicious Strings

Malicious File

C:\Windows\System32\PerfStringse.ini was identified as malicious by YARA according to rules: Suspicious Strings

Malicious File

C:\Windows\security\database\edbtmp.log was identified as malicious by YARA according to rules: Suspicious Strings

Malicious File

MSSQL tables were dropped: #A3D0EDE1 and #A1E8A56F

Drop MsSql Table

IDS detected Attempted User Privilege Gain : sp_start_job - program execution

IDS - Attempted User Privilege Gain

Process c:\windows\system32\ftp.exe attempted to access suspicious domains: down.mys2016.info

DNS Query Access Suspicious Domain Outgoing Connection

Process c:\windows\system32\ftp.exe generated outgoing network traffic to: 81.177.135.35:21

Outgoing Connection

Process c:\windows\system32\regsvr32.exe attempted to access suspicious domains: js.mys2016.info

DNS Query Access Suspicious Domain

C:\Users\Administrator\AppData\Local\Microsoft\Windows\INetCache\IE\v[1].sct was identified as malicious by YARA according to rules: Suspicious Strings and Maldoc Powerpointmouse

Malicious File

c:\program files\microsoft sql server\mssql11.sqlexpress\mssql\binn\sqlservr.exe set the command line cmd /c start /min c:\windows\system32\wbem\123.bat to run using Persistency - Logon

Persistency - Logon

Process c:\windows\system32\windowspowershell\v1.0\powershell.exe attempted to access suspicious domains: kr1s.ru

DNS Query Access Suspicious Domain Outgoing Connection

Process c:\windows\system32\windowspowershell\v1.0\powershell.exe generated outgoing network traffic to: 195.208.1.107:80

Outgoing Connection

C:\Users\Administrator\AppData\Local\Temp\king.exe was identified as malicious by YARA according to rules: Antidebug Antivm, Peid, Packer Compiler Signatures and Crypto Signatures

Malicious File

MSSQL executed 1 shell commands

Execute MsSql Shell Command

Process c:\users\admini~1\appdata\local\temp\king.exe attempted to access suspicious domains: iplogger.co and kr1s.ru

DNS Query Access Suspicious Domain

C:\Users\Administrator\AppData\Local\Temp\doc.exe was identified as malicious by YARA according to rules: Antidebug Antivm, Peid, Packer Compiler Signatures and Crypto Signatures

Malicious File

C:\Users\Administrator\AppData\Local\Microsoft\Windows\INetCache\IE\doc[1].dat was identified as malicious by YARA according to rules: Antidebug Antivm, Peid, Packer Compiler Signatures and Crypto Signatures

Malicious File

C:\Users\Administrator\AppData\Local\Temp\nsgC769.tmp\inetc.dll was identified as malicious by YARA according to rules: Antidebug Antivm, Peid and Packer Compiler Signatures

Malicious File

C:\Users\Administrator\AppData\Roaming\Temps\DOC001.exe was identified as malicious by YARA according to rules: Antidebug Antivm, Peid, Packer Compiler Signatures and Crypto Signatures

Malicious File

The file C:\Users\Administrator\AppData\Roaming\Temps\DOC001.exe was downloaded and executed

Download and Execute

Process c:\users\administrator\appdata\roaming\temps\doc001.exe attempted to access suspicious domains: kr1s.ru

DNS Query Access Suspicious Domain

Connection was closed due to user inactivity

Associated Files

C:\Windows\Temp\doc.exe

SHA256: d2e8b77fe0ddb96c4d52a34f9498dc7dd885c7b11b8745b78f3f6beaeec8e191

1033460 bytes

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IP Address: 175.31.188.138​Previously Malicious