Malware Analysis Report

2024-12-07 13:44

Sample ID 241118-qb3wzsxaqd
Target 794ec24e28f6351c9ad2c04101d774e9763f4f444cfb7c15da782922c6f07e69.dll
SHA256 794ec24e28f6351c9ad2c04101d774e9763f4f444cfb7c15da782922c6f07e69
Tags
discovery rootkit gh0strat purplefox
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

794ec24e28f6351c9ad2c04101d774e9763f4f444cfb7c15da782922c6f07e69

Threat Level: Known bad

The file 794ec24e28f6351c9ad2c04101d774e9763f4f444cfb7c15da782922c6f07e69.dll was found to be: Known bad.

Malicious Activity Summary

discovery rootkit gh0strat purplefox

Detect PurpleFox Rootkit

Gh0st RAT payload

Gh0strat family

Purplefox family

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-18 13:06

Signatures

Detect PurpleFox Rootkit

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

Gh0st RAT payload

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

Gh0strat family

gh0strat

Purplefox family

purplefox

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-18 13:06

Reported

2024-11-18 13:08

Platform

win7-20241010-en

Max time kernel

13s

Max time network

19s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\794ec24e28f6351c9ad2c04101d774e9763f4f444cfb7c15da782922c6f07e69.dll,#1

Signatures

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2268 wrote to memory of 2436 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2268 wrote to memory of 2436 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2268 wrote to memory of 2436 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2268 wrote to memory of 2436 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2268 wrote to memory of 2436 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2268 wrote to memory of 2436 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2268 wrote to memory of 2436 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2436 wrote to memory of 2488 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 2436 wrote to memory of 2488 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 2436 wrote to memory of 2488 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 2436 wrote to memory of 2488 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 2436 wrote to memory of 2512 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 2436 wrote to memory of 2512 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 2436 wrote to memory of 2512 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 2436 wrote to memory of 2512 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\794ec24e28f6351c9ad2c04101d774e9763f4f444cfb7c15da782922c6f07e69.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\794ec24e28f6351c9ad2c04101d774e9763f4f444cfb7c15da782922c6f07e69.dll,#1

C:\Windows\SysWOW64\cmd.exe

cmd /c md C:\Users\Public\Documents\MM

C:\Windows\SysWOW64\cmd.exe

cmd /c md C:\Users\Public\Documents\MM

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-18 13:06

Reported

2024-11-18 13:08

Platform

win10v2004-20241007-en

Max time kernel

95s

Max time network

137s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\794ec24e28f6351c9ad2c04101d774e9763f4f444cfb7c15da782922c6f07e69.dll,#1

Signatures

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2732 wrote to memory of 1684 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2732 wrote to memory of 1684 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2732 wrote to memory of 1684 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1684 wrote to memory of 4952 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 1684 wrote to memory of 4952 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 1684 wrote to memory of 4952 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 1684 wrote to memory of 4548 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 1684 wrote to memory of 4548 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 1684 wrote to memory of 4548 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\794ec24e28f6351c9ad2c04101d774e9763f4f444cfb7c15da782922c6f07e69.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\794ec24e28f6351c9ad2c04101d774e9763f4f444cfb7c15da782922c6f07e69.dll,#1

C:\Windows\SysWOW64\cmd.exe

cmd /c md C:\Users\Public\Documents\MM

C:\Windows\SysWOW64\cmd.exe

cmd /c md C:\Users\Public\Documents\MM

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 22.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

N/A