Malware Analysis Report

2025-08-05 12:51

Sample ID 240509-bdtzjahe8w
Target 581977ec454b59b76e61b672812cd142bfe1f0424c8263af89395f95f918adcf
SHA256 581977ec454b59b76e61b672812cd142bfe1f0424c8263af89395f95f918adcf
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

581977ec454b59b76e61b672812cd142bfe1f0424c8263af89395f95f918adcf

Threat Level: Shows suspicious behavior

The file 581977ec454b59b76e61b672812cd142bfe1f0424c8263af89395f95f918adcf 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 01:02

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-09 01:02

Reported

2024-05-09 01:04

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\581977ec454b59b76e61b672812cd142bfe1f0424c8263af89395f95f918adcf.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\581977ec454b59b76e61b672812cd142bfe1f0424c8263af89395f95f918adcf.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\581977ec454b59b76e61b672812cd142bfe1f0424c8263af89395f95f918adcf.exe

"C:\Users\Admin\AppData\Local\Temp\581977ec454b59b76e61b672812cd142bfe1f0424c8263af89395f95f918adcf.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1004 -ip 1004

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1004 -s 716

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
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 131.72.42.20.in-addr.arpa udp

Files

memory/1004-0-0x0000000000680000-0x0000000000681000-memory.dmp

memory/1004-1-0x00000000027E0000-0x0000000002860000-memory.dmp

memory/1004-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/1004-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/1004-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/1004-6-0x0000000000680000-0x0000000000681000-memory.dmp

memory/1004-8-0x0000000000400000-0x000000000046F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-09 01:02

Reported

2024-05-09 01:04

Platform

win11-20240426-en

Max time kernel

141s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\581977ec454b59b76e61b672812cd142bfe1f0424c8263af89395f95f918adcf.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\581977ec454b59b76e61b672812cd142bfe1f0424c8263af89395f95f918adcf.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\581977ec454b59b76e61b672812cd142bfe1f0424c8263af89395f95f918adcf.exe

"C:\Users\Admin\AppData\Local\Temp\581977ec454b59b76e61b672812cd142bfe1f0424c8263af89395f95f918adcf.exe"

Network

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

Files

memory/1136-0-0x0000000002240000-0x0000000002241000-memory.dmp

memory/1136-1-0x0000000002900000-0x0000000002980000-memory.dmp

memory/1136-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/1136-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/1136-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/1136-5-0x0000000002240000-0x0000000002241000-memory.dmp

memory/1136-8-0x0000000000400000-0x000000000046F000-memory.dmp