Malware Analysis Report

2024-12-07 15:22

Sample ID 241113-zqr8gayhrp
Target Mx Woofer.rar
SHA256 fbbc00b62830a07bf3b575daf8e1d041807c94b85bdc62fcab0a7ac6caf31314
Tags
bootkit evasion execution persistence trojan
score
9/10

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 Overview

score
9/10

SHA256

fbbc00b62830a07bf3b575daf8e1d041807c94b85bdc62fcab0a7ac6caf31314

Threat Level: Likely malicious

The file Mx Woofer.rar was found to be: Likely malicious.

Malicious Activity Summary

bootkit evasion execution persistence trojan

Identifies VirtualBox via ACPI registry values (likely anti-VM)

Stops running service(s)

Checks BIOS information in registry

Writes to the Master Boot Record (MBR)

Checks whether UAC is enabled

Suspicious use of NtSetInformationThreadHideFromDebugger

Launches sc.exe

Unsigned PE

Kills process with taskkill

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Delays execution with timeout.exe

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-13 20:55

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-13 20:55

Reported

2024-11-13 20:58

Platform

win10v2004-20241007-en

Max time kernel

150s

Max time network

152s

Command Line

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

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM)

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe N/A

Stops running service(s)

evasion execution

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe N/A

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\MXWoofer.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\MXWoofer.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Launches sc.exe

Description Indicator Process Target
N/A N/A C:\Windows\system32\sc.exe N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\timeout.exe N/A

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\taskkill.exe N/A
N/A N/A C:\Windows\system32\taskkill.exe N/A
N/A N/A C:\Windows\system32\taskkill.exe N/A
N/A N/A C:\Windows\system32\taskkill.exe N/A
N/A N/A C:\Windows\system32\taskkill.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\system32\taskkill.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\taskkill.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\taskkill.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\taskkill.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\taskkill.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4992 wrote to memory of 4380 N/A C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe C:\Windows\system32\cmd.exe
PID 4992 wrote to memory of 4380 N/A C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe C:\Windows\system32\cmd.exe
PID 4992 wrote to memory of 4388 N/A C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe C:\Windows\system32\cmd.exe
PID 4992 wrote to memory of 4388 N/A C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe C:\Windows\system32\cmd.exe
PID 4380 wrote to memory of 936 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\taskkill.exe
PID 4380 wrote to memory of 936 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\taskkill.exe
PID 4388 wrote to memory of 2808 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\certutil.exe
PID 4388 wrote to memory of 2808 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\certutil.exe
PID 4388 wrote to memory of 1952 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\find.exe
PID 4388 wrote to memory of 1952 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\find.exe
PID 4388 wrote to memory of 3044 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\find.exe
PID 4388 wrote to memory of 3044 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\find.exe
PID 4992 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe C:\Windows\system32\cmd.exe
PID 4992 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe C:\Windows\system32\cmd.exe
PID 1696 wrote to memory of 3340 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\taskkill.exe
PID 1696 wrote to memory of 3340 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\taskkill.exe
PID 4992 wrote to memory of 4616 N/A C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe C:\Windows\system32\cmd.exe
PID 4992 wrote to memory of 4616 N/A C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe C:\Windows\system32\cmd.exe
PID 4616 wrote to memory of 3912 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\sc.exe
PID 4616 wrote to memory of 3912 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\sc.exe
PID 4992 wrote to memory of 4568 N/A C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe C:\Windows\system32\cmd.exe
PID 4992 wrote to memory of 4568 N/A C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe C:\Windows\system32\cmd.exe
PID 4568 wrote to memory of 4924 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\taskkill.exe
PID 4568 wrote to memory of 4924 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\taskkill.exe
PID 4992 wrote to memory of 3872 N/A C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe C:\Windows\system32\cmd.exe
PID 4992 wrote to memory of 3872 N/A C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe C:\Windows\system32\cmd.exe
PID 3872 wrote to memory of 2588 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\taskkill.exe
PID 3872 wrote to memory of 2588 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\taskkill.exe
PID 4992 wrote to memory of 856 N/A C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe C:\Windows\system32\cmd.exe
PID 4992 wrote to memory of 856 N/A C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe C:\Windows\system32\cmd.exe
PID 856 wrote to memory of 4872 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\taskkill.exe
PID 856 wrote to memory of 4872 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\taskkill.exe
PID 4992 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe C:\Windows\system32\cmd.exe
PID 4992 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe C:\Windows\system32\cmd.exe
PID 2496 wrote to memory of 452 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\cmd.exe
PID 2496 wrote to memory of 452 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\cmd.exe
PID 452 wrote to memory of 3588 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe
PID 452 wrote to memory of 3588 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe

Processes

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

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

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c taskkill /f /im HTTPDebuggerUI.exe >nul 2>&1

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe" MD5 | find /i /v "md5" | find /i /v "certutil"

C:\Windows\system32\taskkill.exe

taskkill /f /im HTTPDebuggerUI.exe

C:\Windows\system32\certutil.exe

certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\MXWoofer.exe" MD5

C:\Windows\system32\find.exe

find /i /v "md5"

C:\Windows\system32\find.exe

find /i /v "certutil"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c taskkill /f /im HTTPDebuggerSvc.exe >nul 2>&1

C:\Windows\system32\taskkill.exe

taskkill /f /im HTTPDebuggerSvc.exe

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c sc stop HTTPDebuggerPro >nul 2>&1

C:\Windows\system32\sc.exe

sc stop HTTPDebuggerPro

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c taskkill /FI "IMAGENAME eq cheatengine*" /IM * /F /T >nul 2>&1

C:\Windows\system32\taskkill.exe

taskkill /FI "IMAGENAME eq cheatengine*" /IM * /F /T

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c taskkill /FI "IMAGENAME eq httpdebugger*" /IM * /F /T >nul 2>&1

C:\Windows\system32\taskkill.exe

taskkill /FI "IMAGENAME eq httpdebugger*" /IM * /F /T

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c taskkill /FI "IMAGENAME eq processhacker*" /IM * /F /T >nul 2>&1

C:\Windows\system32\taskkill.exe

taskkill /FI "IMAGENAME eq processhacker*" /IM * /F /T

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c start cmd /C "color b && title Error && echo SSL connect error && timeout /t 5"

C:\Windows\system32\cmd.exe

cmd /C "color b && title Error && echo SSL connect error && timeout /t 5"

C:\Windows\system32\timeout.exe

timeout /t 5

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 keyauth.win udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 104.26.1.5:443 keyauth.win tcp
N/A 127.0.0.1:3000 tcp
N/A 127.0.0.1:64513 tcp
N/A 127.0.0.1:64515 tcp
US 8.8.8.8:53 5.1.26.104.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 68.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.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

memory/4992-0-0x00007FF79E6C0000-0x00007FF79EED6000-memory.dmp

memory/4992-1-0x00007FFA9F4B0000-0x00007FFA9F4B2000-memory.dmp

memory/4992-3-0x00007FF79E6C0000-0x00007FF79EED6000-memory.dmp

memory/4992-5-0x00007FF79E6C0000-0x00007FF79EED6000-memory.dmp