Malware Analysis Report

2024-09-23 12:04

Sample ID 240612-n21s7stelc
Target ba0f56e91b3361a0e8af4ab9cbcdb73a96fa5f63ced325a6591cef180b1fec7e
SHA256 ba0f56e91b3361a0e8af4ab9cbcdb73a96fa5f63ced325a6591cef180b1fec7e
Tags
bootkit evasion persistence trojan
score
6/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

ba0f56e91b3361a0e8af4ab9cbcdb73a96fa5f63ced325a6591cef180b1fec7e

Threat Level: Shows suspicious behavior

The file ba0f56e91b3361a0e8af4ab9cbcdb73a96fa5f63ced325a6591cef180b1fec7e was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit evasion persistence trojan

Checks whether UAC is enabled

Writes to the Master Boot Record (MBR)

Unsigned PE

Modifies Internet Explorer settings

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-12 11:54

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-12 11:54

Reported

2024-06-12 11:56

Platform

win7-20240419-en

Max time kernel

122s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ba0f56e91b3361a0e8af4ab9cbcdb73a96fa5f63ced325a6591cef180b1fec7e.exe"

Signatures

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\ba0f56e91b3361a0e8af4ab9cbcdb73a96fa5f63ced325a6591cef180b1fec7e.exe 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\ba0f56e91b3361a0e8af4ab9cbcdb73a96fa5f63ced325a6591cef180b1fec7e.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Internet Explorer\SEBrowserMachineCode C:\Users\Admin\AppData\Local\Temp\ba0f56e91b3361a0e8af4ab9cbcdb73a96fa5f63ced325a6591cef180b1fec7e.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Internet Explorer\SEBrowserMachineCode\MachineGuid = "4DAFFB4B9B371F226A4295CA3DD78C9B" C:\Users\Admin\AppData\Local\Temp\ba0f56e91b3361a0e8af4ab9cbcdb73a96fa5f63ced325a6591cef180b1fec7e.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ba0f56e91b3361a0e8af4ab9cbcdb73a96fa5f63ced325a6591cef180b1fec7e.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ba0f56e91b3361a0e8af4ab9cbcdb73a96fa5f63ced325a6591cef180b1fec7e.exe

"C:\Users\Admin\AppData\Local\Temp\ba0f56e91b3361a0e8af4ab9cbcdb73a96fa5f63ced325a6591cef180b1fec7e.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 pcwup.imtt.qq.com udp
US 8.8.8.8:53 wup.browser.qq.com udp

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-12 11:54

Reported

2024-06-12 11:56

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ba0f56e91b3361a0e8af4ab9cbcdb73a96fa5f63ced325a6591cef180b1fec7e.exe"

Signatures

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\ba0f56e91b3361a0e8af4ab9cbcdb73a96fa5f63ced325a6591cef180b1fec7e.exe 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\ba0f56e91b3361a0e8af4ab9cbcdb73a96fa5f63ced325a6591cef180b1fec7e.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Internet Explorer\SEBrowserMachineCode C:\Users\Admin\AppData\Local\Temp\ba0f56e91b3361a0e8af4ab9cbcdb73a96fa5f63ced325a6591cef180b1fec7e.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\SEBrowserMachineCode\MachineGuid = "984564ED209659BFFCDCBCA950E1FF6B" C:\Users\Admin\AppData\Local\Temp\ba0f56e91b3361a0e8af4ab9cbcdb73a96fa5f63ced325a6591cef180b1fec7e.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ba0f56e91b3361a0e8af4ab9cbcdb73a96fa5f63ced325a6591cef180b1fec7e.exe

"C:\Users\Admin\AppData\Local\Temp\ba0f56e91b3361a0e8af4ab9cbcdb73a96fa5f63ced325a6591cef180b1fec7e.exe"

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 pcwup.imtt.qq.com udp
US 8.8.8.8:53 wup.browser.qq.com udp

Files

N/A