Malware Analysis Report

2025-04-03 09:30

Sample ID 250304-yfswksyvgx
Target socks64.dll
SHA256 71ae05cfeb685885835b6172c08dedc2c6ec775ff5f21680532c17cf0e4403cc
Tags
systembc
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

71ae05cfeb685885835b6172c08dedc2c6ec775ff5f21680532c17cf0e4403cc

Threat Level: Known bad

The file socks64.dll was found to be: Known bad.

Malicious Activity Summary

systembc

Systembc family

Blocklisted process makes network request

Unsigned PE

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2025-03-04 19:44

Signatures

Systembc family

systembc

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-03-04 19:44

Reported

2025-03-04 19:46

Platform

win7-20241010-en

Max time kernel

14s

Max time network

127s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\socks64.dll,#1

Signatures

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\system32\rundll32.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\socks64.dll,#1

Network

Country Destination Domain Proto
US 66.85.173.11:4001 tcp

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2025-03-04 19:44

Reported

2025-03-04 19:46

Platform

win10v2004-20250217-en

Max time kernel

97s

Max time network

138s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\socks64.dll,#1

Signatures

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\system32\rundll32.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\socks64.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 66.85.173.11:4001 tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

N/A