Malware Analysis Report

2025-08-06 04:10

Sample ID 240508-2tcy3aec43
Target 3e859827ec868066e4c833fcbd934b940a87c73e63269607446481640ea33c06
SHA256 3e859827ec868066e4c833fcbd934b940a87c73e63269607446481640ea33c06
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

3e859827ec868066e4c833fcbd934b940a87c73e63269607446481640ea33c06

Threat Level: Known bad

The file 3e859827ec868066e4c833fcbd934b940a87c73e63269607446481640ea33c06 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 22:52

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-08 22:52

Reported

2024-05-08 22:57

Platform

win7-20240215-en

Max time kernel

290s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3e859827ec868066e4c833fcbd934b940a87c73e63269607446481640ea33c06.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\3e859827ec868066e4c833fcbd934b940a87c73e63269607446481640ea33c06.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\3e859827ec868066e4c833fcbd934b940a87c73e63269607446481640ea33c06.exe

"C:\Users\Admin\AppData\Local\Temp\3e859827ec868066e4c833fcbd934b940a87c73e63269607446481640ea33c06.exe"

Network

N/A

Files

memory/2952-0-0x00000000001B0000-0x00000000001B1000-memory.dmp

memory/2952-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/2952-1-0x0000000001FB0000-0x0000000002030000-memory.dmp

memory/2952-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/2952-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/2952-6-0x0000000000400000-0x000000000046F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-08 22:52

Reported

2024-05-08 22:57

Platform

win10-20240404-en

Max time kernel

292s

Max time network

190s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3e859827ec868066e4c833fcbd934b940a87c73e63269607446481640ea33c06.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\3e859827ec868066e4c833fcbd934b940a87c73e63269607446481640ea33c06.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\3e859827ec868066e4c833fcbd934b940a87c73e63269607446481640ea33c06.exe

"C:\Users\Admin\AppData\Local\Temp\3e859827ec868066e4c833fcbd934b940a87c73e63269607446481640ea33c06.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 600 -s 760

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 600 -s 704

Network

Files

memory/600-0-0x00007FF80FF60000-0x00007FF81013B000-memory.dmp

memory/600-1-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/600-2-0x0000000000400000-0x00000000004EE000-memory.dmp