Malware Analysis Report

2025-08-06 04:09

Sample ID 240508-2zepvaef48
Target 26daa5d8652941ed3b4cc865402832f0589dcf1e3a10cb4696c82bf0a2e528f2
SHA256 26daa5d8652941ed3b4cc865402832f0589dcf1e3a10cb4696c82bf0a2e528f2
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

26daa5d8652941ed3b4cc865402832f0589dcf1e3a10cb4696c82bf0a2e528f2

Threat Level: Shows suspicious behavior

The file 26daa5d8652941ed3b4cc865402832f0589dcf1e3a10cb4696c82bf0a2e528f2 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 23:00

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-08 23:00

Reported

2024-05-08 23:03

Platform

win10v2004-20240508-en

Max time kernel

142s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\26daa5d8652941ed3b4cc865402832f0589dcf1e3a10cb4696c82bf0a2e528f2.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\26daa5d8652941ed3b4cc865402832f0589dcf1e3a10cb4696c82bf0a2e528f2.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\26daa5d8652941ed3b4cc865402832f0589dcf1e3a10cb4696c82bf0a2e528f2.exe

"C:\Users\Admin\AppData\Local\Temp\26daa5d8652941ed3b4cc865402832f0589dcf1e3a10cb4696c82bf0a2e528f2.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2792 -ip 2792

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2792 -s 704

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

memory/2792-0-0x0000000002250000-0x0000000002251000-memory.dmp

memory/2792-1-0x0000000002820000-0x00000000028A0000-memory.dmp

memory/2792-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/2792-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/2792-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/2792-6-0x0000000002250000-0x0000000002251000-memory.dmp

memory/2792-8-0x0000000000400000-0x000000000046F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-08 23:00

Reported

2024-05-08 23:03

Platform

win11-20240508-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\26daa5d8652941ed3b4cc865402832f0589dcf1e3a10cb4696c82bf0a2e528f2.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\26daa5d8652941ed3b4cc865402832f0589dcf1e3a10cb4696c82bf0a2e528f2.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\26daa5d8652941ed3b4cc865402832f0589dcf1e3a10cb4696c82bf0a2e528f2.exe

"C:\Users\Admin\AppData\Local\Temp\26daa5d8652941ed3b4cc865402832f0589dcf1e3a10cb4696c82bf0a2e528f2.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4164 -ip 4164

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4164 -s 784

Network

Country Destination Domain Proto
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

memory/4164-0-0x0000000002460000-0x0000000002461000-memory.dmp

memory/4164-1-0x0000000002870000-0x00000000028F0000-memory.dmp

memory/4164-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/4164-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/4164-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/4164-7-0x0000000000400000-0x000000000046F000-memory.dmp