Malware Analysis Report

2024-09-23 12:05

Sample ID 240612-pxxresvfpc
Target 7c8aaf50b9f6bceca6c4e2292ffc5369871482b256b0cb9592966207e2714e2e
SHA256 7c8aaf50b9f6bceca6c4e2292ffc5369871482b256b0cb9592966207e2714e2e
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

7c8aaf50b9f6bceca6c4e2292ffc5369871482b256b0cb9592966207e2714e2e

Threat Level: Shows suspicious behavior

The file 7c8aaf50b9f6bceca6c4e2292ffc5369871482b256b0cb9592966207e2714e2e 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 12:43

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-12 12:43

Reported

2024-06-12 12:45

Platform

win7-20240611-en

Max time kernel

120s

Max time network

129s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7c8aaf50b9f6bceca6c4e2292ffc5369871482b256b0cb9592966207e2714e2e.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\7c8aaf50b9f6bceca6c4e2292ffc5369871482b256b0cb9592966207e2714e2e.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\7c8aaf50b9f6bceca6c4e2292ffc5369871482b256b0cb9592966207e2714e2e.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\SEBrowserMachineCode C:\Users\Admin\AppData\Local\Temp\7c8aaf50b9f6bceca6c4e2292ffc5369871482b256b0cb9592966207e2714e2e.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\SEBrowserMachineCode\MachineGuid = "340DF53313D2AD5299E4C44B7F372B15" C:\Users\Admin\AppData\Local\Temp\7c8aaf50b9f6bceca6c4e2292ffc5369871482b256b0cb9592966207e2714e2e.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\7c8aaf50b9f6bceca6c4e2292ffc5369871482b256b0cb9592966207e2714e2e.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7c8aaf50b9f6bceca6c4e2292ffc5369871482b256b0cb9592966207e2714e2e.exe

"C:\Users\Admin\AppData\Local\Temp\7c8aaf50b9f6bceca6c4e2292ffc5369871482b256b0cb9592966207e2714e2e.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 pcwup.imtt.qq.com udp
CN 183.47.104.158:80 pcwup.imtt.qq.com tcp
CN 183.47.126.106:80 pcwup.imtt.qq.com tcp
CN 14.22.9.100:80 pcwup.imtt.qq.com tcp
US 8.8.8.8:53 wup.browser.qq.com udp
HK 129.226.107.80:443 wup.browser.qq.com tcp

Files

memory/2228-0-0x0000000000110000-0x0000000000111000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-12 12:43

Reported

2024-06-12 12:45

Platform

win10v2004-20240611-en

Max time kernel

150s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7c8aaf50b9f6bceca6c4e2292ffc5369871482b256b0cb9592966207e2714e2e.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\7c8aaf50b9f6bceca6c4e2292ffc5369871482b256b0cb9592966207e2714e2e.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\7c8aaf50b9f6bceca6c4e2292ffc5369871482b256b0cb9592966207e2714e2e.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Software\Microsoft\Internet Explorer\SEBrowserMachineCode C:\Users\Admin\AppData\Local\Temp\7c8aaf50b9f6bceca6c4e2292ffc5369871482b256b0cb9592966207e2714e2e.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\SEBrowserMachineCode\MachineGuid = "3668CB4BA1C058C3D0BA3B74B0B1A307" C:\Users\Admin\AppData\Local\Temp\7c8aaf50b9f6bceca6c4e2292ffc5369871482b256b0cb9592966207e2714e2e.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7c8aaf50b9f6bceca6c4e2292ffc5369871482b256b0cb9592966207e2714e2e.exe

"C:\Users\Admin\AppData\Local\Temp\7c8aaf50b9f6bceca6c4e2292ffc5369871482b256b0cb9592966207e2714e2e.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 22.177.190.20.in-addr.arpa udp
BE 2.17.196.171:443 www.bing.com tcp
US 8.8.8.8:53 171.196.17.2.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 pcwup.imtt.qq.com udp
CN 14.22.9.100:80 pcwup.imtt.qq.com tcp
CN 183.47.104.158:80 pcwup.imtt.qq.com tcp
CN 183.47.126.106:80 pcwup.imtt.qq.com tcp
US 8.8.8.8:53 224.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 wup.browser.qq.com udp
HK 129.226.106.211:443 wup.browser.qq.com tcp
US 8.8.8.8:53 211.106.226.129.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

N/A