Malware Analysis Report

2025-08-06 04:10

Sample ID 240508-3awgqsda9y
Target 73b4e40e71c23c166c541e84205992822eea31006fe49d50857831c75d6f12ef
SHA256 73b4e40e71c23c166c541e84205992822eea31006fe49d50857831c75d6f12ef
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

73b4e40e71c23c166c541e84205992822eea31006fe49d50857831c75d6f12ef

Threat Level: Known bad

The file 73b4e40e71c23c166c541e84205992822eea31006fe49d50857831c75d6f12ef 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 23:19

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-08 23:19

Reported

2024-05-08 23:24

Platform

win7-20240215-en

Max time kernel

292s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\73b4e40e71c23c166c541e84205992822eea31006fe49d50857831c75d6f12ef.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\73b4e40e71c23c166c541e84205992822eea31006fe49d50857831c75d6f12ef.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\73b4e40e71c23c166c541e84205992822eea31006fe49d50857831c75d6f12ef.exe

"C:\Users\Admin\AppData\Local\Temp\73b4e40e71c23c166c541e84205992822eea31006fe49d50857831c75d6f12ef.exe"

Network

N/A

Files

memory/1804-0-0x0000000000220000-0x0000000000221000-memory.dmp

memory/1804-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/1804-1-0x0000000002000000-0x0000000002080000-memory.dmp

memory/1804-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/1804-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/1804-6-0x0000000000220000-0x0000000000221000-memory.dmp

memory/1804-7-0x0000000000400000-0x000000000046F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-08 23:19

Reported

2024-05-08 23:24

Platform

win10-20240404-en

Max time kernel

292s

Max time network

300s

Command Line

"C:\Users\Admin\AppData\Local\Temp\73b4e40e71c23c166c541e84205992822eea31006fe49d50857831c75d6f12ef.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\73b4e40e71c23c166c541e84205992822eea31006fe49d50857831c75d6f12ef.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\73b4e40e71c23c166c541e84205992822eea31006fe49d50857831c75d6f12ef.exe

"C:\Users\Admin\AppData\Local\Temp\73b4e40e71c23c166c541e84205992822eea31006fe49d50857831c75d6f12ef.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 524 -s 752

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 524 -s 696

Network

Country Destination Domain Proto
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 227.162.46.104.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp

Files

memory/524-0-0x00000000007B0000-0x00000000007B1000-memory.dmp

memory/524-1-0x00000000024F0000-0x0000000002570000-memory.dmp

memory/524-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/524-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/524-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/524-5-0x00000000007B0000-0x00000000007B1000-memory.dmp

memory/524-7-0x0000000000400000-0x000000000046F000-memory.dmp