Malware Analysis Report

2024-11-13 17:16

Sample ID 231210-q2ypysfeg3
Target 3DECB23A2E0C58DD2A0EC542F954D705.dll
SHA256 2eedba5f5dbbee52fd6edcb5039ebd96e18a66d79f622fa794b00061a412cbce
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

2eedba5f5dbbee52fd6edcb5039ebd96e18a66d79f622fa794b00061a412cbce

Threat Level: Known bad

The file 3DECB23A2E0C58DD2A0EC542F954D705.dll was found to be: Known bad.

Malicious Activity Summary

systembc

Systembc family

Blocklisted process makes network request

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-12-10 13:46

Signatures

Systembc family

systembc

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-10 13:46

Reported

2023-12-10 13:48

Platform

win7-20231201-en

Max time kernel

118s

Max time network

123s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3DECB23A2E0C58DD2A0EC542F954D705.dll,#1

Signatures

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2160 wrote to memory of 2404 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2160 wrote to memory of 2404 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2160 wrote to memory of 2404 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2160 wrote to memory of 2404 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2160 wrote to memory of 2404 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2160 wrote to memory of 2404 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2160 wrote to memory of 2404 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3DECB23A2E0C58DD2A0EC542F954D705.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3DECB23A2E0C58DD2A0EC542F954D705.dll,#1

Network

Country Destination Domain Proto
RU 82.147.85.189:4001 tcp

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-10 13:46

Reported

2023-12-10 13:48

Platform

win10v2004-20231127-en

Max time kernel

148s

Max time network

153s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3DECB23A2E0C58DD2A0EC542F954D705.dll,#1

Signatures

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4964 wrote to memory of 1696 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4964 wrote to memory of 1696 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4964 wrote to memory of 1696 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3DECB23A2E0C58DD2A0EC542F954D705.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3DECB23A2E0C58DD2A0EC542F954D705.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 233.194.19.2.in-addr.arpa udp
US 8.8.8.8:53 198.1.85.104.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 218.240.110.104.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
RU 82.147.85.189:4001 tcp
US 8.8.8.8:53 49.77.123.92.in-addr.arpa udp
US 8.8.8.8:53 189.85.147.82.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp

Files

N/A