Malware Analysis Report

2025-08-06 04:10

Sample ID 240508-1jgzlabd34
Target 3d86aef3caf2a26780619074a88c65088337c797194909a4e976b9eb800f27bf
SHA256 3d86aef3caf2a26780619074a88c65088337c797194909a4e976b9eb800f27bf
Tags
bootkit persistence
score
6/10

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
6/10

SHA256

3d86aef3caf2a26780619074a88c65088337c797194909a4e976b9eb800f27bf

Threat Level: Shows suspicious behavior

The file 3d86aef3caf2a26780619074a88c65088337c797194909a4e976b9eb800f27bf was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit persistence

Writes to the Master Boot Record (MBR)

Program crash

Unsigned PE

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-08 21:40

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-08 21:40

Reported

2024-05-08 21:43

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3d86aef3caf2a26780619074a88c65088337c797194909a4e976b9eb800f27bf.exe"

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PHYSICALDRIVE0 C:\Users\Admin\AppData\Local\Temp\3d86aef3caf2a26780619074a88c65088337c797194909a4e976b9eb800f27bf.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\3d86aef3caf2a26780619074a88c65088337c797194909a4e976b9eb800f27bf.exe

"C:\Users\Admin\AppData\Local\Temp\3d86aef3caf2a26780619074a88c65088337c797194909a4e976b9eb800f27bf.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4976 -ip 4976

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4976 -s 688

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.147:443 www.bing.com tcp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 147.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 52.111.229.43:443 tcp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 90.65.42.20.in-addr.arpa udp

Files

memory/4976-0-0x0000000002280000-0x0000000002281000-memory.dmp

memory/4976-1-0x00000000028E0000-0x0000000002960000-memory.dmp

memory/4976-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/4976-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/4976-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/4976-5-0x0000000002280000-0x0000000002281000-memory.dmp

memory/4976-8-0x0000000000400000-0x000000000046F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-08 21:40

Reported

2024-05-08 21:43

Platform

win11-20240508-en

Max time kernel

144s

Max time network

99s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3d86aef3caf2a26780619074a88c65088337c797194909a4e976b9eb800f27bf.exe"

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PHYSICALDRIVE0 C:\Users\Admin\AppData\Local\Temp\3d86aef3caf2a26780619074a88c65088337c797194909a4e976b9eb800f27bf.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\3d86aef3caf2a26780619074a88c65088337c797194909a4e976b9eb800f27bf.exe

"C:\Users\Admin\AppData\Local\Temp\3d86aef3caf2a26780619074a88c65088337c797194909a4e976b9eb800f27bf.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4952 -ip 4952

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4952 -s 712

Network

Country Destination Domain Proto
US 52.111.227.14:443 tcp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/4952-0-0x0000000002230000-0x0000000002231000-memory.dmp

memory/4952-1-0x0000000002880000-0x0000000002900000-memory.dmp

memory/4952-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/4952-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/4952-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/4952-7-0x0000000000400000-0x000000000046F000-memory.dmp