Malware Analysis Report

2025-08-06 04:10

Sample ID 240508-29ywgafd23
Target 71c85bc14af7367fc39b6c071d31c2130c96f82df5099ea198a5234610b7277e
SHA256 71c85bc14af7367fc39b6c071d31c2130c96f82df5099ea198a5234610b7277e
Tags
bootkit persistence
score
10/10

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
10/10

SHA256

71c85bc14af7367fc39b6c071d31c2130c96f82df5099ea198a5234610b7277e

Threat Level: Known bad

The file 71c85bc14af7367fc39b6c071d31c2130c96f82df5099ea198a5234610b7277e was found to be: Known bad.

Malicious Activity Summary

bootkit persistence

Pitou

Writes to the Master Boot Record (MBR)

Unsigned PE

Program crash

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-08 23:17

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-08 23:17

Reported

2024-05-08 23:22

Platform

win7-20240419-en

Max time kernel

290s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\71c85bc14af7367fc39b6c071d31c2130c96f82df5099ea198a5234610b7277e.exe"

Signatures

Pitou

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

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PHYSICALDRIVE0 C:\Users\Admin\AppData\Local\Temp\71c85bc14af7367fc39b6c071d31c2130c96f82df5099ea198a5234610b7277e.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\71c85bc14af7367fc39b6c071d31c2130c96f82df5099ea198a5234610b7277e.exe

"C:\Users\Admin\AppData\Local\Temp\71c85bc14af7367fc39b6c071d31c2130c96f82df5099ea198a5234610b7277e.exe"

Network

N/A

Files

memory/2320-0-0x0000000000220000-0x0000000000221000-memory.dmp

memory/2320-1-0x0000000001F00000-0x0000000001F80000-memory.dmp

memory/2320-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/2320-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/2320-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/2320-5-0x0000000000220000-0x0000000000221000-memory.dmp

memory/2320-7-0x0000000000400000-0x000000000046F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-08 23:17

Reported

2024-05-08 23:22

Platform

win10-20240404-en

Max time kernel

292s

Max time network

301s

Command Line

"C:\Users\Admin\AppData\Local\Temp\71c85bc14af7367fc39b6c071d31c2130c96f82df5099ea198a5234610b7277e.exe"

Signatures

Pitou

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

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PHYSICALDRIVE0 C:\Users\Admin\AppData\Local\Temp\71c85bc14af7367fc39b6c071d31c2130c96f82df5099ea198a5234610b7277e.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\71c85bc14af7367fc39b6c071d31c2130c96f82df5099ea198a5234610b7277e.exe

"C:\Users\Admin\AppData\Local\Temp\71c85bc14af7367fc39b6c071d31c2130c96f82df5099ea198a5234610b7277e.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 600

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 804

Network

Country Destination Domain Proto
US 8.8.8.8:53 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.0.8.0.8.0.8.0.ip6.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 24.73.42.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp

Files

memory/4512-0-0x00007FF8015F0000-0x00007FF8017CB000-memory.dmp

memory/4512-1-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/4512-2-0x0000000000400000-0x00000000004EE000-memory.dmp