Malware Analysis Report

2025-01-03 09:34

Sample ID 240604-a4mgpsga45
Target 2024-06-04_5b42ba6e98f666858277458250eb8e07_xiaoba
SHA256 35e9a41d67a6ca8b0d21928e4fd972fd604ae6dd76f493e784ea7d7b6a22b94e
Tags
bootkit persistence upx
score
10/10

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
10/10

SHA256

35e9a41d67a6ca8b0d21928e4fd972fd604ae6dd76f493e784ea7d7b6a22b94e

Threat Level: Known bad

The file 2024-06-04_5b42ba6e98f666858277458250eb8e07_xiaoba was found to be: Known bad.

Malicious Activity Summary

bootkit persistence upx

UPX dump on OEP (original entry point)

UPX dump on OEP (original entry point)

UPX packed file

Writes to the Master Boot Record (MBR)

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-04 00:46

Signatures

UPX dump on OEP (original entry point)

Description Indicator Process Target
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Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-04 00:46

Reported

2024-06-04 00:48

Platform

win7-20240221-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-04_5b42ba6e98f666858277458250eb8e07_xiaoba.exe"

Signatures

UPX dump on OEP (original entry point)

Description Indicator Process Target
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UPX packed file

upx
Description Indicator Process Target
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Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\2024-06-04_5b42ba6e98f666858277458250eb8e07_xiaoba.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-04_5b42ba6e98f666858277458250eb8e07_xiaoba.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-04_5b42ba6e98f666858277458250eb8e07_xiaoba.exe"

Network

N/A

Files

memory/2964-1-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-8-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-16-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-20-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-18-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-14-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-12-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-10-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-6-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-4-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-2-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-0-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-22-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-24-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-28-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-31-0x0000000000400000-0x0000000000556000-memory.dmp

memory/2964-26-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-30-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-41-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-39-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-43-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-35-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-33-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-37-0x0000000000370000-0x00000000003AE000-memory.dmp

memory/2964-44-0x0000000000400000-0x0000000000556000-memory.dmp

memory/2964-45-0x0000000000400000-0x0000000000556000-memory.dmp

memory/2964-46-0x0000000000400000-0x0000000000556000-memory.dmp

memory/2964-47-0x0000000000400000-0x0000000000556000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-04 00:46

Reported

2024-06-04 00:48

Platform

win10v2004-20240508-en

Max time kernel

134s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-04_5b42ba6e98f666858277458250eb8e07_xiaoba.exe"

Signatures

UPX dump on OEP (original entry point)

Description Indicator Process Target
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UPX packed file

upx
Description Indicator Process Target
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Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\2024-06-04_5b42ba6e98f666858277458250eb8e07_xiaoba.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-04_5b42ba6e98f666858277458250eb8e07_xiaoba.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-04_5b42ba6e98f666858277458250eb8e07_xiaoba.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
NL 23.62.61.129:443 www.bing.com tcp
US 8.8.8.8:53 129.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.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/4552-0-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-12-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-41-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-47-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-46-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-45-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-44-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-38-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-36-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-34-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-32-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-30-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-28-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-27-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-24-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-22-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-20-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-18-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-16-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-14-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-10-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-2-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-8-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-6-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-4-0x0000000002310000-0x000000000234E000-memory.dmp

memory/4552-1-0x0000000002310000-0x000000000234E000-memory.dmp