Malware Analysis Report

2025-08-06 04:10

Sample ID 240508-3by91sdb7t
Target 718d6655fe37dc992a6ebdd5f64a4cb6bd2fe106e88696724c346dfac6d3b121
SHA256 718d6655fe37dc992a6ebdd5f64a4cb6bd2fe106e88696724c346dfac6d3b121
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

718d6655fe37dc992a6ebdd5f64a4cb6bd2fe106e88696724c346dfac6d3b121

Threat Level: Shows suspicious behavior

The file 718d6655fe37dc992a6ebdd5f64a4cb6bd2fe106e88696724c346dfac6d3b121 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 23:21

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-08 23:21

Reported

2024-05-08 23:23

Platform

win10v2004-20240508-en

Max time kernel

145s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\718d6655fe37dc992a6ebdd5f64a4cb6bd2fe106e88696724c346dfac6d3b121.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\718d6655fe37dc992a6ebdd5f64a4cb6bd2fe106e88696724c346dfac6d3b121.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\718d6655fe37dc992a6ebdd5f64a4cb6bd2fe106e88696724c346dfac6d3b121.exe

"C:\Users\Admin\AppData\Local\Temp\718d6655fe37dc992a6ebdd5f64a4cb6bd2fe106e88696724c346dfac6d3b121.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2920 -ip 2920

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 744

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
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
BE 2.17.107.122:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 122.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/2920-0-0x0000000002140000-0x0000000002141000-memory.dmp

memory/2920-1-0x0000000002860000-0x00000000028E0000-memory.dmp

memory/2920-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/2920-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/2920-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/2920-7-0x0000000000400000-0x000000000046F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-08 23:21

Reported

2024-05-08 23:23

Platform

win11-20240508-en

Max time kernel

146s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\718d6655fe37dc992a6ebdd5f64a4cb6bd2fe106e88696724c346dfac6d3b121.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\718d6655fe37dc992a6ebdd5f64a4cb6bd2fe106e88696724c346dfac6d3b121.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\718d6655fe37dc992a6ebdd5f64a4cb6bd2fe106e88696724c346dfac6d3b121.exe

"C:\Users\Admin\AppData\Local\Temp\718d6655fe37dc992a6ebdd5f64a4cb6bd2fe106e88696724c346dfac6d3b121.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4244 -ip 4244

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4244 -s 712

Network

Country Destination Domain Proto
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/4244-0-0x0000000002350000-0x0000000002351000-memory.dmp

memory/4244-1-0x0000000002940000-0x00000000029C0000-memory.dmp

memory/4244-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/4244-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/4244-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/4244-5-0x0000000002350000-0x0000000002351000-memory.dmp

memory/4244-8-0x0000000000400000-0x000000000046F000-memory.dmp