IP Address: 121.31.117.162Previously Malicious

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IP Address:
121.31.117.162​
Previously Malicious

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

Threat Information

Role

Attacker

Services Targeted

MSSQL

Tags

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

Connect Back Servers

down.mys2018.xyz js.mys2018.xyz triangleww.com down.1226bye.pw gamesoxalic.com js.1226bye.pw

223.25.247.240 66.117.6.174

Basic Information

IP Address

121.31.117.162

Domain

-

ISP

China Unicom Liaoning

Country

China

WHOIS

Created Date

-

Updated Date

-

Organization

-

First seen in Guardicore Centra

2018-12-09

Last seen in Guardicore Centra

2019-02-13

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

MSSQL tables were dropped: #A3D0EDE1 and #A1E8A56F

Drop MsSql Table

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

Malicious File

IDS detected Attempted User Privilege Gain : sp_start_job - program execution

IDS - Attempted User Privilege Gain

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

Malicious File

Process c:\windows\system32\ftp.exe attempted to access suspicious domains: down.1226bye.pw and gamesoxalic.com

DNS Query Access Suspicious Domain Outgoing Connection

Process c:\windows\system32\ftp.exe generated outgoing network traffic to: 66.117.6.174:21

Outgoing Connection

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

DNS Query Access Suspicious Domain

C:\Windows\System32\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE\ups[1].rar was identified as malicious by YARA according to rules: Rat Ratdecoders, Packer, Peid, Antidebug Antivm and Packer Compiler Signatures

Malicious File

c:\windows\system\cab.exe was identified as malicious by YARA according to rules: Rat Ratdecoders, Packer, Peid, Antidebug Antivm and Packer Compiler Signatures

Malicious File

C:\Windows\System32\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE\v1[1].rar was identified as malicious by YARA according to rules: Peid and Packer Compiler Signatures

Malicious File

c:\windows\temp\v.exe was identified as malicious by YARA according to rules: Peid and Packer Compiler Signatures

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

C:\Windows\SysWOW64\01.dat was identified as malicious by YARA according to rules: Maldoc Somerules, Crypto Signatures and Suspicious Strings

Malicious File

C:\Windows\SysWOW64\02.dat was identified as malicious by YARA according to rules: Crypto Signatures

Malicious File

Process c:\windows\system\cab.exe generated outgoing network traffic to: 223.25.247.240:80

Outgoing Connection

Process c:\windows\system\cab.exe attempted to access suspicious domains: triangleww.com

Access Suspicious Domain Outgoing Connection

MSSQL executed 1 shell commands

Execute MsSql Shell Command

C:\Windows\SysWOW64\wpcap.dll was identified as malicious by YARA according to rules: Packer Compiler Signatures, Antidebug Antivm and Suspicious Strings

Malicious File

C:\Windows\SysWOW64\packet.dll was identified as malicious by YARA according to rules: Packer Compiler Signatures, Antidebug Antivm and Suspicious Strings

Malicious File

C:\Windows\SysWOW64\npptools.dll was identified as malicious by YARA according to rules: Packer Compiler Signatures, Peid, Antidebug Antivm and Suspicious Strings

Malicious File

C:\Windows\System32\drivers\npf.sys was identified as malicious by YARA according to rules: Packer Compiler Signatures, Antidebug Antivm and Suspicious Strings

Malicious File

C:\Windows\System\upslist.txt was identified as malicious by YARA according to rules: Malw Yayih

Malicious File

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

Download and Execute

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\npptools.dll was downloaded and loaded by c:\windows\system\msinfo.exe

Download and Execute

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

Service Creation Service Start

Connection was closed due to user inactivity

Associated Files

C:\Windows\SysWOW64\wpcap.dll

SHA256: b967e4dce952f9232592e4c1753516081438702a53424005642700522055dbc9

282360 bytes

C:\Windows\SysWOW64\npptools.dll

SHA256: 366b77df76729d08687051c1ec4b718ba1d650bca5b16eb15ec5c11570d6ff16

48128 bytes

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IP Address: 121.31.117.162​Previously Malicious