Malware Analysis Report

2024-12-07 13:55

Sample ID 241119-my922avclc
Target 94beb32181e321ef10e85ee652f1ef1e602c252d6c7d4593c556a6bfcec1d4f0
SHA256 94beb32181e321ef10e85ee652f1ef1e602c252d6c7d4593c556a6bfcec1d4f0
Tags
rootkit gh0strat purplefox discovery
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

94beb32181e321ef10e85ee652f1ef1e602c252d6c7d4593c556a6bfcec1d4f0

Threat Level: Known bad

The file 94beb32181e321ef10e85ee652f1ef1e602c252d6c7d4593c556a6bfcec1d4f0 was found to be: Known bad.

Malicious Activity Summary

rootkit gh0strat purplefox discovery

Gh0st RAT payload

Gh0strat family

Purplefox family

Detect PurpleFox Rootkit

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-19 10:53

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

2024-11-19 10:53

Reported

2024-11-19 10:56

Platform

win7-20240903-en

Max time kernel

119s

Max time network

121s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\94beb32181e321ef10e85ee652f1ef1e602c252d6c7d4593c556a6bfcec1d4f0.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 2856 wrote to memory of 3000 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2856 wrote to memory of 3000 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2856 wrote to memory of 3000 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2856 wrote to memory of 3000 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2856 wrote to memory of 3000 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2856 wrote to memory of 3000 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2856 wrote to memory of 3000 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3000 wrote to memory of 2988 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 3000 wrote to memory of 2988 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 3000 wrote to memory of 2988 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 3000 wrote to memory of 2988 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 3000 wrote to memory of 2740 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 3000 wrote to memory of 2740 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 3000 wrote to memory of 2740 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 3000 wrote to memory of 2740 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\94beb32181e321ef10e85ee652f1ef1e602c252d6c7d4593c556a6bfcec1d4f0.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\94beb32181e321ef10e85ee652f1ef1e602c252d6c7d4593c556a6bfcec1d4f0.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

2024-11-19 10:53

Reported

2024-11-19 10:56

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

150s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\94beb32181e321ef10e85ee652f1ef1e602c252d6c7d4593c556a6bfcec1d4f0.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 3940 wrote to memory of 3908 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3940 wrote to memory of 3908 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3940 wrote to memory of 3908 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3908 wrote to memory of 2176 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 3908 wrote to memory of 2176 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 3908 wrote to memory of 2176 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 3908 wrote to memory of 3744 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 3908 wrote to memory of 3744 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 3908 wrote to memory of 3744 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\94beb32181e321ef10e85ee652f1ef1e602c252d6c7d4593c556a6bfcec1d4f0.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\94beb32181e321ef10e85ee652f1ef1e602c252d6c7d4593c556a6bfcec1d4f0.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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 20.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

N/A