Malware Analysis Report

2024-11-30 22:38

Sample ID 230526-3fd5mshe84
Target main.dll
SHA256 6c0d3531c95bf245d6413dc7f3bf5739fc41f6064bf6d8fc66443f8e46d9ffd2
Tags
score
3/10

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
3/10

SHA256

6c0d3531c95bf245d6413dc7f3bf5739fc41f6064bf6d8fc66443f8e46d9ffd2

Threat Level: Likely benign

The file main.dll was found to be: Likely benign.

Malicious Activity Summary


Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-05-26 23:27

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-05-26 23:27

Reported

2023-05-26 23:29

Platform

win7-20230220-en

Max time kernel

141s

Max time network

33s

Command Line

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

Signatures

Processes

C:\Windows\system32\rundll32.exe

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

C:\Windows\SysWOW64\rundll32.exe

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 860 -s 224

Network

N/A

Files

memory/860-54-0x0000000010000000-0x00000000100BD000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-05-26 23:27

Reported

2023-05-26 23:29

Platform

win10v2004-20230220-en

Max time kernel

59s

Max time network

128s

Command Line

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

Signatures

Program crash

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4932 wrote to memory of 1760 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4932 wrote to memory of 1760 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4932 wrote to memory of 1760 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\main.dll,#1

C:\Windows\SysWOW64\rundll32.exe

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 380 -p 1760 -ip 1760

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1760 -s 600

Network

Country Destination Domain Proto
US 8.8.8.8:53 210.108.222.173.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 52.152.108.96:443 tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
FR 40.79.141.154:443 tcp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 63.13.109.52.in-addr.arpa udp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 204.79.197.203:80 tcp

Files

memory/1760-133-0x0000000010000000-0x00000000100BD000-memory.dmp