Malware Analysis Report

2025-08-05 12:51

Sample ID 240509-a2d3jsbb55
Target bd7176c5f464cda3f426a15931b8a92ab0dcee808d3f85ed1d3132c34b0b405a
SHA256 bd7176c5f464cda3f426a15931b8a92ab0dcee808d3f85ed1d3132c34b0b405a
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

bd7176c5f464cda3f426a15931b8a92ab0dcee808d3f85ed1d3132c34b0b405a

Threat Level: Shows suspicious behavior

The file bd7176c5f464cda3f426a15931b8a92ab0dcee808d3f85ed1d3132c34b0b405a was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit persistence

Writes to the Master Boot Record (MBR)

Unsigned PE

Program crash

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-09 00:42

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-09 00:42

Reported

2024-05-09 00:44

Platform

win10v2004-20240426-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bd7176c5f464cda3f426a15931b8a92ab0dcee808d3f85ed1d3132c34b0b405a.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\bd7176c5f464cda3f426a15931b8a92ab0dcee808d3f85ed1d3132c34b0b405a.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\bd7176c5f464cda3f426a15931b8a92ab0dcee808d3f85ed1d3132c34b0b405a.exe

"C:\Users\Admin\AppData\Local\Temp\bd7176c5f464cda3f426a15931b8a92ab0dcee808d3f85ed1d3132c34b0b405a.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
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 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 31.121.18.2.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
BE 2.17.196.137:443 www.bing.com tcp
US 8.8.8.8:53 137.196.17.2.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.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 udp

Files

memory/1200-0-0x0000000002360000-0x0000000002361000-memory.dmp

memory/1200-1-0x00000000025A0000-0x0000000002620000-memory.dmp

memory/1200-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/1200-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/1200-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/1200-7-0x0000000000400000-0x000000000046F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-09 00:42

Reported

2024-05-09 00:44

Platform

win11-20240508-en

Max time kernel

146s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bd7176c5f464cda3f426a15931b8a92ab0dcee808d3f85ed1d3132c34b0b405a.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\bd7176c5f464cda3f426a15931b8a92ab0dcee808d3f85ed1d3132c34b0b405a.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\bd7176c5f464cda3f426a15931b8a92ab0dcee808d3f85ed1d3132c34b0b405a.exe

"C:\Users\Admin\AppData\Local\Temp\bd7176c5f464cda3f426a15931b8a92ab0dcee808d3f85ed1d3132c34b0b405a.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5076 -ip 5076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 5076 -s 724

Network

Country Destination Domain Proto
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp

Files

memory/5076-0-0x0000000002240000-0x0000000002241000-memory.dmp

memory/5076-1-0x0000000002550000-0x00000000025D0000-memory.dmp

memory/5076-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/5076-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/5076-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/5076-7-0x0000000000400000-0x000000000046F000-memory.dmp