Malware Analysis Report

2025-08-06 04:10

Sample ID 240508-3lsvzsgb94
Target 9981e011866a3de6d1f3201a8ebf0c9c32b37cf47933e8bc9519a28edfccbf54
SHA256 9981e011866a3de6d1f3201a8ebf0c9c32b37cf47933e8bc9519a28edfccbf54
Tags
bootkit persistence
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

9981e011866a3de6d1f3201a8ebf0c9c32b37cf47933e8bc9519a28edfccbf54

Threat Level: Known bad

The file 9981e011866a3de6d1f3201a8ebf0c9c32b37cf47933e8bc9519a28edfccbf54 was found to be: Known bad.

Malicious Activity Summary

bootkit persistence

Pitou

Writes to the Master Boot Record (MBR)

Program crash

Unsigned PE

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-08 23:36

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-08 23:36

Reported

2024-05-08 23:41

Platform

win10-20240404-en

Max time kernel

291s

Max time network

298s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9981e011866a3de6d1f3201a8ebf0c9c32b37cf47933e8bc9519a28edfccbf54.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\9981e011866a3de6d1f3201a8ebf0c9c32b37cf47933e8bc9519a28edfccbf54.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9981e011866a3de6d1f3201a8ebf0c9c32b37cf47933e8bc9519a28edfccbf54.exe

"C:\Users\Admin\AppData\Local\Temp\9981e011866a3de6d1f3201a8ebf0c9c32b37cf47933e8bc9519a28edfccbf54.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 512 -s 820

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 512 -s 644

Network

Country Destination Domain Proto
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 109.116.69.13.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp

Files

memory/512-0-0x00000000006A0000-0x00000000006A1000-memory.dmp

memory/512-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/512-1-0x0000000002940000-0x00000000029C0000-memory.dmp

memory/512-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/512-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/512-6-0x0000000000400000-0x000000000046F000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-08 23:36

Reported

2024-05-08 23:41

Platform

win7-20240221-en

Max time kernel

292s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9981e011866a3de6d1f3201a8ebf0c9c32b37cf47933e8bc9519a28edfccbf54.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\9981e011866a3de6d1f3201a8ebf0c9c32b37cf47933e8bc9519a28edfccbf54.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9981e011866a3de6d1f3201a8ebf0c9c32b37cf47933e8bc9519a28edfccbf54.exe

"C:\Users\Admin\AppData\Local\Temp\9981e011866a3de6d1f3201a8ebf0c9c32b37cf47933e8bc9519a28edfccbf54.exe"

Network

N/A

Files

memory/2088-0-0x0000000000220000-0x0000000000221000-memory.dmp

memory/2088-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/2088-1-0x0000000001F70000-0x0000000001FF0000-memory.dmp

memory/2088-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/2088-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/2088-6-0x0000000000220000-0x0000000000221000-memory.dmp

memory/2088-7-0x0000000000400000-0x000000000046F000-memory.dmp