Malware Analysis Report

2025-08-05 21:21

Sample ID 240305-ez6r1aeb5z
Target b3c5fad20a9f5e7a63232125ae11353d
SHA256 9dd0cb20e6b30abda8db8e6a4c8370c32e074e741bce2a2505632d24edd15fb0
Tags
aspackv2 bootkit persistence
score
7/10

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
7/10

SHA256

9dd0cb20e6b30abda8db8e6a4c8370c32e074e741bce2a2505632d24edd15fb0

Threat Level: Shows suspicious behavior

The file b3c5fad20a9f5e7a63232125ae11353d was found to be: Shows suspicious behavior.

Malicious Activity Summary

aspackv2 bootkit persistence

ASPack v2.12-2.42

Writes to the Master Boot Record (MBR)

Unsigned PE

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-05 04:23

Signatures

ASPack v2.12-2.42

aspackv2
Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-05 04:23

Reported

2024-03-05 04:26

Platform

win7-20240221-en

Max time kernel

122s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b3c5fad20a9f5e7a63232125ae11353d.exe"

Signatures

ASPack v2.12-2.42

aspackv2
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\b3c5fad20a9f5e7a63232125ae11353d.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b3c5fad20a9f5e7a63232125ae11353d.exe

"C:\Users\Admin\AppData\Local\Temp\b3c5fad20a9f5e7a63232125ae11353d.exe"

Network

N/A

Files

memory/2396-0-0x0000000000400000-0x0000000000454000-memory.dmp

memory/2396-1-0x0000000000310000-0x0000000000352000-memory.dmp

memory/2396-2-0x00000000003E0000-0x00000000003E1000-memory.dmp

memory/2396-3-0x0000000000230000-0x0000000000231000-memory.dmp

memory/2396-4-0x0000000000220000-0x0000000000221000-memory.dmp

memory/2396-6-0x0000000000460000-0x0000000000461000-memory.dmp

memory/2396-5-0x0000000000380000-0x0000000000381000-memory.dmp

memory/2396-7-0x0000000000400000-0x0000000000454000-memory.dmp

memory/2396-9-0x0000000000310000-0x0000000000352000-memory.dmp

memory/2396-8-0x00000000004A0000-0x00000000004A1000-memory.dmp

memory/2396-10-0x00000000004A0000-0x00000000004A1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-05 04:23

Reported

2024-03-05 04:26

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b3c5fad20a9f5e7a63232125ae11353d.exe"

Signatures

ASPack v2.12-2.42

aspackv2
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b3c5fad20a9f5e7a63232125ae11353d.exe

"C:\Users\Admin\AppData\Local\Temp\b3c5fad20a9f5e7a63232125ae11353d.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 www.microsoft.com udp
GB 92.123.241.137:80 www.microsoft.com tcp
GB 92.123.241.137:80 www.microsoft.com tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 137.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 32.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.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
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp

Files

memory/3228-0-0x0000000000400000-0x0000000000454000-memory.dmp

memory/3228-1-0x00000000021F0000-0x0000000002232000-memory.dmp

memory/3228-2-0x00000000023F0000-0x00000000023F1000-memory.dmp

memory/3228-3-0x00000000021A0000-0x00000000021A1000-memory.dmp

memory/3228-4-0x0000000000590000-0x0000000000591000-memory.dmp

memory/3228-6-0x0000000000400000-0x0000000000454000-memory.dmp

memory/3228-7-0x0000000002410000-0x0000000002411000-memory.dmp

memory/3228-8-0x00000000024B0000-0x0000000002506000-memory.dmp

memory/3228-10-0x00000000021F0000-0x0000000002232000-memory.dmp

memory/3228-9-0x0000000002450000-0x0000000002451000-memory.dmp

memory/3228-5-0x00000000023D0000-0x00000000023D1000-memory.dmp