Malware Analysis Report

2025-08-06 04:10

Sample ID 240509-aaej1afa7w
Target dfe1a434f56499e0647413e297387de0354ebab218a694b0c6ae98bb2c9ab34f
SHA256 dfe1a434f56499e0647413e297387de0354ebab218a694b0c6ae98bb2c9ab34f
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

dfe1a434f56499e0647413e297387de0354ebab218a694b0c6ae98bb2c9ab34f

Threat Level: Known bad

The file dfe1a434f56499e0647413e297387de0354ebab218a694b0c6ae98bb2c9ab34f 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

2024-05-09 00:00

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-09 00:00

Reported

2024-05-09 00:05

Platform

win10-20240404-en

Max time kernel

291s

Max time network

300s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dfe1a434f56499e0647413e297387de0354ebab218a694b0c6ae98bb2c9ab34f.exe"

Signatures

Pitou

Description Indicator Process Target
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\dfe1a434f56499e0647413e297387de0354ebab218a694b0c6ae98bb2c9ab34f.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\dfe1a434f56499e0647413e297387de0354ebab218a694b0c6ae98bb2c9ab34f.exe

"C:\Users\Admin\AppData\Local\Temp\dfe1a434f56499e0647413e297387de0354ebab218a694b0c6ae98bb2c9ab34f.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 604

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 752

Network

Country Destination Domain Proto
US 20.231.121.79:80 tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 9.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 101.58.20.217.in-addr.arpa udp

Files

memory/4588-0-0x0000000000840000-0x0000000000841000-memory.dmp

memory/4588-1-0x0000000002530000-0x00000000025B0000-memory.dmp

memory/4588-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/4588-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/4588-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/4588-6-0x0000000000400000-0x000000000046F000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-09 00:00

Reported

2024-05-09 00:05

Platform

win7-20240508-en

Max time kernel

290s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dfe1a434f56499e0647413e297387de0354ebab218a694b0c6ae98bb2c9ab34f.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\dfe1a434f56499e0647413e297387de0354ebab218a694b0c6ae98bb2c9ab34f.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\dfe1a434f56499e0647413e297387de0354ebab218a694b0c6ae98bb2c9ab34f.exe

"C:\Users\Admin\AppData\Local\Temp\dfe1a434f56499e0647413e297387de0354ebab218a694b0c6ae98bb2c9ab34f.exe"

Network

N/A

Files

memory/3016-0-0x00000000001B0000-0x00000000001B1000-memory.dmp

memory/3016-1-0x0000000002F30000-0x0000000002FB0000-memory.dmp

memory/3016-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/3016-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/3016-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/3016-5-0x00000000001B0000-0x00000000001B1000-memory.dmp

memory/3016-7-0x0000000000400000-0x000000000046F000-memory.dmp