Malware Analysis Report

2025-08-06 04:09

Sample ID 240508-2splgaeb87
Target d8f45a8381576ff1f856fe3dee2ecdbb56dbf3b6fa4e671b6598f315b493a76a
SHA256 d8f45a8381576ff1f856fe3dee2ecdbb56dbf3b6fa4e671b6598f315b493a76a
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

d8f45a8381576ff1f856fe3dee2ecdbb56dbf3b6fa4e671b6598f315b493a76a

Threat Level: Shows suspicious behavior

The file d8f45a8381576ff1f856fe3dee2ecdbb56dbf3b6fa4e671b6598f315b493a76a was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit persistence

Writes to the Master Boot Record (MBR)

Unsigned PE

Program crash

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-08 22:50

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-08 22:50

Reported

2024-05-08 22:53

Platform

win10v2004-20240508-en

Max time kernel

142s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d8f45a8381576ff1f856fe3dee2ecdbb56dbf3b6fa4e671b6598f315b493a76a.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\d8f45a8381576ff1f856fe3dee2ecdbb56dbf3b6fa4e671b6598f315b493a76a.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d8f45a8381576ff1f856fe3dee2ecdbb56dbf3b6fa4e671b6598f315b493a76a.exe

"C:\Users\Admin\AppData\Local\Temp\d8f45a8381576ff1f856fe3dee2ecdbb56dbf3b6fa4e671b6598f315b493a76a.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3904 -ip 3904

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3904 -s 704

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp

Files

memory/3904-0-0x0000000002240000-0x0000000002241000-memory.dmp

memory/3904-1-0x0000000002490000-0x0000000002510000-memory.dmp

memory/3904-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/3904-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/3904-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/3904-5-0x0000000002240000-0x0000000002241000-memory.dmp

memory/3904-8-0x0000000000400000-0x000000000046F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-08 22:50

Reported

2024-05-08 22:53

Platform

win11-20240508-en

Max time kernel

147s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d8f45a8381576ff1f856fe3dee2ecdbb56dbf3b6fa4e671b6598f315b493a76a.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\d8f45a8381576ff1f856fe3dee2ecdbb56dbf3b6fa4e671b6598f315b493a76a.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d8f45a8381576ff1f856fe3dee2ecdbb56dbf3b6fa4e671b6598f315b493a76a.exe

"C:\Users\Admin\AppData\Local\Temp\d8f45a8381576ff1f856fe3dee2ecdbb56dbf3b6fa4e671b6598f315b493a76a.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4464 -ip 4464

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4464 -s 780

Network

Files

memory/4464-0-0x00000000007E0000-0x00000000007E1000-memory.dmp

memory/4464-1-0x0000000002A30000-0x0000000002AB0000-memory.dmp

memory/4464-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/4464-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/4464-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/4464-7-0x0000000000400000-0x000000000046F000-memory.dmp