Malware Analysis Report

2025-08-06 04:10

Sample ID 240508-3pm4xagd63
Target 250bb9ef5f4d9f1993395ece33b7a618aaecf21672fb40168c6d8dd7d231559b
SHA256 250bb9ef5f4d9f1993395ece33b7a618aaecf21672fb40168c6d8dd7d231559b
Tags
bootkit persistence
score
6/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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
6/10

SHA256

250bb9ef5f4d9f1993395ece33b7a618aaecf21672fb40168c6d8dd7d231559b

Threat Level: Shows suspicious behavior

The file 250bb9ef5f4d9f1993395ece33b7a618aaecf21672fb40168c6d8dd7d231559b was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit persistence

Writes to the Master Boot Record (MBR)

Program crash

Unsigned PE

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-08 23:41

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-08 23:41

Reported

2024-05-08 23:44

Platform

win10v2004-20240508-en

Max time kernel

144s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\250bb9ef5f4d9f1993395ece33b7a618aaecf21672fb40168c6d8dd7d231559b.exe"

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PHYSICALDRIVE0 C:\Users\Admin\AppData\Local\Temp\250bb9ef5f4d9f1993395ece33b7a618aaecf21672fb40168c6d8dd7d231559b.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\250bb9ef5f4d9f1993395ece33b7a618aaecf21672fb40168c6d8dd7d231559b.exe

"C:\Users\Admin\AppData\Local\Temp\250bb9ef5f4d9f1993395ece33b7a618aaecf21672fb40168c6d8dd7d231559b.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4460 -ip 4460

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4460 -s 704

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
BE 88.221.83.249:443 www.bing.com tcp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
BE 88.221.83.249:443 www.bing.com tcp
US 8.8.8.8:53 249.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp

Files

memory/4460-0-0x0000000002280000-0x0000000002281000-memory.dmp

memory/4460-1-0x0000000002920000-0x00000000029A0000-memory.dmp

memory/4460-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/4460-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/4460-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/4460-7-0x0000000000400000-0x000000000046F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-08 23:41

Reported

2024-05-08 23:44

Platform

win11-20240426-en

Max time kernel

148s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\250bb9ef5f4d9f1993395ece33b7a618aaecf21672fb40168c6d8dd7d231559b.exe"

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PHYSICALDRIVE0 C:\Users\Admin\AppData\Local\Temp\250bb9ef5f4d9f1993395ece33b7a618aaecf21672fb40168c6d8dd7d231559b.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\250bb9ef5f4d9f1993395ece33b7a618aaecf21672fb40168c6d8dd7d231559b.exe

"C:\Users\Admin\AppData\Local\Temp\250bb9ef5f4d9f1993395ece33b7a618aaecf21672fb40168c6d8dd7d231559b.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3876 -ip 3876

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3876 -s 712

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp

Files

memory/3876-0-0x0000000002360000-0x0000000002361000-memory.dmp

memory/3876-1-0x0000000002870000-0x00000000028F0000-memory.dmp

memory/3876-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/3876-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/3876-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/3876-7-0x0000000000400000-0x000000000046F000-memory.dmp