Malware Analysis Report

2025-08-10 18:07

Sample ID 240507-efav8abg23
Target 5fec7a48884005a1c91758afd9914970_NEAS
SHA256 c1f90d7ae6f9e175683fcaf177d590362fc43e5eba975e225177d4d67d26f889
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

c1f90d7ae6f9e175683fcaf177d590362fc43e5eba975e225177d4d67d26f889

Threat Level: Shows suspicious behavior

The file 5fec7a48884005a1c91758afd9914970_NEAS was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit persistence

Writes to the Master Boot Record (MBR)

Unsigned PE

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-07 03:52

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-07 03:52

Reported

2024-05-07 03:55

Platform

win7-20240221-en

Max time kernel

141s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5fec7a48884005a1c91758afd9914970_NEAS.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\5fec7a48884005a1c91758afd9914970_NEAS.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5fec7a48884005a1c91758afd9914970_NEAS.exe

"C:\Users\Admin\AppData\Local\Temp\5fec7a48884005a1c91758afd9914970_NEAS.exe"

Network

N/A

Files

memory/2872-2-0x0000000000330000-0x000000000039B000-memory.dmp

memory/2872-1-0x0000000001B60000-0x0000000001C60000-memory.dmp

memory/2872-3-0x0000000000400000-0x000000000046F000-memory.dmp

memory/2872-4-0x0000000000400000-0x0000000001A60000-memory.dmp

memory/2872-5-0x0000000000400000-0x0000000001A60000-memory.dmp

memory/2872-7-0x0000000001B60000-0x0000000001C60000-memory.dmp

memory/2872-8-0x0000000000330000-0x000000000039B000-memory.dmp

memory/2872-9-0x0000000000400000-0x000000000046F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-07 03:52

Reported

2024-05-07 03:55

Platform

win10v2004-20240426-en

Max time kernel

141s

Max time network

103s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5fec7a48884005a1c91758afd9914970_NEAS.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\5fec7a48884005a1c91758afd9914970_NEAS.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5fec7a48884005a1c91758afd9914970_NEAS.exe

"C:\Users\Admin\AppData\Local\Temp\5fec7a48884005a1c91758afd9914970_NEAS.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 139.53.16.96.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp

Files

memory/2800-2-0x0000000003680000-0x00000000036EB000-memory.dmp

memory/2800-1-0x0000000001CE0000-0x0000000001DE0000-memory.dmp

memory/2800-3-0x0000000000400000-0x000000000046F000-memory.dmp

memory/2800-4-0x0000000000400000-0x0000000001A60000-memory.dmp

memory/2800-5-0x0000000000400000-0x0000000001A60000-memory.dmp

memory/2800-6-0x0000000001CE0000-0x0000000001DE0000-memory.dmp

memory/2800-8-0x0000000003680000-0x00000000036EB000-memory.dmp

memory/2800-9-0x0000000000400000-0x000000000046F000-memory.dmp