Malware Analysis Report

2024-09-23 12:04

Sample ID 240612-n31jtstenh
Target 186dfc67dd8fa85fa4938b11a84dea7bc2fccf22c65c1c37ff4fbdea22c5d6dd
SHA256 186dfc67dd8fa85fa4938b11a84dea7bc2fccf22c65c1c37ff4fbdea22c5d6dd
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

186dfc67dd8fa85fa4938b11a84dea7bc2fccf22c65c1c37ff4fbdea22c5d6dd

Threat Level: Shows suspicious behavior

The file 186dfc67dd8fa85fa4938b11a84dea7bc2fccf22c65c1c37ff4fbdea22c5d6dd 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 11:56

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-12 11:56

Reported

2024-06-12 11:58

Platform

win7-20240611-en

Max time kernel

117s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\186dfc67dd8fa85fa4938b11a84dea7bc2fccf22c65c1c37ff4fbdea22c5d6dd.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\186dfc67dd8fa85fa4938b11a84dea7bc2fccf22c65c1c37ff4fbdea22c5d6dd.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\186dfc67dd8fa85fa4938b11a84dea7bc2fccf22c65c1c37ff4fbdea22c5d6dd.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\SOFTWARE\Microsoft\Internet Explorer\BrowserMachineCode C:\Users\Admin\AppData\Local\Temp\186dfc67dd8fa85fa4938b11a84dea7bc2fccf22c65c1c37ff4fbdea22c5d6dd.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Internet Explorer\BrowserMachineCode\MachineGuid = "724B406EEA43809CA82DED87220B2B94" C:\Users\Admin\AppData\Local\Temp\186dfc67dd8fa85fa4938b11a84dea7bc2fccf22c65c1c37ff4fbdea22c5d6dd.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\186dfc67dd8fa85fa4938b11a84dea7bc2fccf22c65c1c37ff4fbdea22c5d6dd.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\186dfc67dd8fa85fa4938b11a84dea7bc2fccf22c65c1c37ff4fbdea22c5d6dd.exe

"C:\Users\Admin\AppData\Local\Temp\186dfc67dd8fa85fa4938b11a84dea7bc2fccf22c65c1c37ff4fbdea22c5d6dd.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 wup.browser.qq.com udp
HK 129.226.106.211:443 wup.browser.qq.com tcp

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-12 11:56

Reported

2024-06-12 11:58

Platform

win10v2004-20240611-en

Max time kernel

92s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\186dfc67dd8fa85fa4938b11a84dea7bc2fccf22c65c1c37ff4fbdea22c5d6dd.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\186dfc67dd8fa85fa4938b11a84dea7bc2fccf22c65c1c37ff4fbdea22c5d6dd.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\186dfc67dd8fa85fa4938b11a84dea7bc2fccf22c65c1c37ff4fbdea22c5d6dd.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3169499791-3545231813-3156325206-1000\SOFTWARE\Microsoft\Internet Explorer\BrowserMachineCode\MachineGuid = "8402B07ADDFFB3209812C433E4D3954E" C:\Users\Admin\AppData\Local\Temp\186dfc67dd8fa85fa4938b11a84dea7bc2fccf22c65c1c37ff4fbdea22c5d6dd.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3169499791-3545231813-3156325206-1000\SOFTWARE\Microsoft\Internet Explorer\BrowserMachineCode C:\Users\Admin\AppData\Local\Temp\186dfc67dd8fa85fa4938b11a84dea7bc2fccf22c65c1c37ff4fbdea22c5d6dd.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\186dfc67dd8fa85fa4938b11a84dea7bc2fccf22c65c1c37ff4fbdea22c5d6dd.exe

"C:\Users\Admin\AppData\Local\Temp\186dfc67dd8fa85fa4938b11a84dea7bc2fccf22c65c1c37ff4fbdea22c5d6dd.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 wup.browser.qq.com udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
HK 129.226.106.211:443 wup.browser.qq.com tcp
NL 23.62.61.171:443 www.bing.com tcp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 211.106.226.129.in-addr.arpa udp
US 8.8.8.8:53 171.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

N/A