Malware Analysis Report

2025-08-06 04:09

Sample ID 240508-26b8asfa88
Target 6383c5506057070793db52e13e37fc5892d5ae736a21d82f89ddb21d65d7e1c9
SHA256 6383c5506057070793db52e13e37fc5892d5ae736a21d82f89ddb21d65d7e1c9
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

6383c5506057070793db52e13e37fc5892d5ae736a21d82f89ddb21d65d7e1c9

Threat Level: Known bad

The file 6383c5506057070793db52e13e37fc5892d5ae736a21d82f89ddb21d65d7e1c9 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 23:11

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-08 23:11

Reported

2024-05-08 23:16

Platform

win7-20240508-en

Max time kernel

290s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6383c5506057070793db52e13e37fc5892d5ae736a21d82f89ddb21d65d7e1c9.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\6383c5506057070793db52e13e37fc5892d5ae736a21d82f89ddb21d65d7e1c9.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6383c5506057070793db52e13e37fc5892d5ae736a21d82f89ddb21d65d7e1c9.exe

"C:\Users\Admin\AppData\Local\Temp\6383c5506057070793db52e13e37fc5892d5ae736a21d82f89ddb21d65d7e1c9.exe"

Network

N/A

Files

memory/1868-0-0x00000000001B0000-0x00000000001B1000-memory.dmp

memory/1868-1-0x0000000001F70000-0x0000000001FF0000-memory.dmp

memory/1868-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/1868-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/1868-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/1868-5-0x00000000001B0000-0x00000000001B1000-memory.dmp

memory/1868-7-0x0000000000400000-0x000000000046F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-08 23:11

Reported

2024-05-08 23:16

Platform

win10-20240404-en

Max time kernel

292s

Max time network

298s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6383c5506057070793db52e13e37fc5892d5ae736a21d82f89ddb21d65d7e1c9.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\6383c5506057070793db52e13e37fc5892d5ae736a21d82f89ddb21d65d7e1c9.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6383c5506057070793db52e13e37fc5892d5ae736a21d82f89ddb21d65d7e1c9.exe

"C:\Users\Admin\AppData\Local\Temp\6383c5506057070793db52e13e37fc5892d5ae736a21d82f89ddb21d65d7e1c9.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 596 -s 832

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 596 -s 752

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 11.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 239.249.30.184.in-addr.arpa udp

Files

memory/596-0-0x0000000002300000-0x0000000002301000-memory.dmp

memory/596-1-0x0000000002570000-0x00000000025F0000-memory.dmp

memory/596-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/596-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/596-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/596-5-0x0000000002300000-0x0000000002301000-memory.dmp

memory/596-7-0x0000000000400000-0x000000000046F000-memory.dmp