Malware Analysis Report

2025-08-05 23:54

Sample ID 241230-t7fm4szmcr
Target 4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f
SHA256 4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f
Tags
gh0strat purplefox discovery persistence rat rootkit trojan
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

4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f

Threat Level: Known bad

The file 4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f was found to be: Known bad.

Malicious Activity Summary

gh0strat purplefox discovery persistence rat rootkit trojan

Gh0st RAT payload

PurpleFox

Purplefox family

Gh0strat

Detect PurpleFox Rootkit

Gh0strat family

Drops file in Drivers directory

Sets service image path in registry

Deletes itself

Loads dropped DLL

Executes dropped EXE

Drops file in System32 directory

System Network Configuration Discovery: Internet Connection Discovery

System Location Discovery: System Language Discovery

Unsigned PE

Runs ping.exe

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: LoadsDriver

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-30 16:41

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-12-30 16:41

Reported

2024-12-30 16:44

Platform

win7-20240903-en

Max time kernel

147s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe"

Signatures

Detect PurpleFox Rootkit

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

Gh0st RAT payload

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

Gh0strat

rat gh0strat

Gh0strat family

gh0strat

PurpleFox

rootkit trojan purplefox

Purplefox family

purplefox

Drops file in Drivers directory

Description Indicator Process Target
File created C:\Windows\system32\drivers\QAssist.sys C:\Windows\SysWOW64\Ghxya.exe N/A

Sets service image path in registry

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys" C:\Windows\SysWOW64\Ghxya.exe N/A

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\Ghxya.exe N/A
N/A N/A C:\Windows\SysWOW64\Ghxya.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\Ghxya.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\Ghxya.exe C:\Users\Admin\AppData\Local\Temp\4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe N/A
File opened for modification C:\Windows\SysWOW64\Ghxya.exe C:\Users\Admin\AppData\Local\Temp\4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\Ghxya.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\Ghxya.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\PING.EXE N/A

System Network Configuration Discovery: Internet Connection Discovery

discovery
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A

Suspicious behavior: LoadsDriver

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\Ghxya.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\SysWOW64\Ghxya.exe N/A
Token: 33 N/A C:\Windows\SysWOW64\Ghxya.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\Ghxya.exe N/A
Token: 33 N/A C:\Windows\SysWOW64\Ghxya.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\Ghxya.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 776 wrote to memory of 2656 N/A C:\Windows\SysWOW64\Ghxya.exe C:\Windows\SysWOW64\Ghxya.exe
PID 776 wrote to memory of 2656 N/A C:\Windows\SysWOW64\Ghxya.exe C:\Windows\SysWOW64\Ghxya.exe
PID 776 wrote to memory of 2656 N/A C:\Windows\SysWOW64\Ghxya.exe C:\Windows\SysWOW64\Ghxya.exe
PID 776 wrote to memory of 2656 N/A C:\Windows\SysWOW64\Ghxya.exe C:\Windows\SysWOW64\Ghxya.exe
PID 2372 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe C:\Windows\SysWOW64\cmd.exe
PID 2372 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe C:\Windows\SysWOW64\cmd.exe
PID 2372 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe C:\Windows\SysWOW64\cmd.exe
PID 2372 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe C:\Windows\SysWOW64\cmd.exe
PID 1440 wrote to memory of 2504 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1440 wrote to memory of 2504 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1440 wrote to memory of 2504 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1440 wrote to memory of 2504 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe

"C:\Users\Admin\AppData\Local\Temp\4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe"

C:\Windows\SysWOW64\Ghxya.exe

C:\Windows\SysWOW64\Ghxya.exe -auto

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\4976C7~1.EXE > nul

C:\Windows\SysWOW64\Ghxya.exe

C:\Windows\SysWOW64\Ghxya.exe -acsi

C:\Windows\SysWOW64\PING.EXE

ping -n 2 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 xsnb.e1.luyouxia.net udp
CN 123.99.198.201:21180 xsnb.e1.luyouxia.net tcp
CN 123.99.198.201:21180 xsnb.e1.luyouxia.net tcp
CN 123.99.198.201:21180 xsnb.e1.luyouxia.net tcp
CN 123.99.198.201:21180 xsnb.e1.luyouxia.net tcp
CN 123.99.198.201:21180 xsnb.e1.luyouxia.net tcp
CN 123.99.198.201:21180 xsnb.e1.luyouxia.net tcp
CN 123.99.198.201:21180 xsnb.e1.luyouxia.net tcp

Files

memory/2372-0-0x0000000010000000-0x000000001019F000-memory.dmp

C:\Windows\SysWOW64\Ghxya.exe

MD5 1392f26d0e45aa0fb778e0116a7602a8
SHA1 b13d8b306d12fc5b7eeb2d2b521a72615e6eda19
SHA256 221a97b2e78e020e4460180a63324ba82bddd862ec123904b95afff91dd5a5d5
SHA512 4d9201a8b57e53bc285e6f29fb47211c4852141ea3d6a4465d3fff1451fc7e141bc4f268fad6ed7526414cb1f319ac823d81da8da96c4f9390ff2d6cdb6388b9

memory/2656-19-0x0000000010000000-0x000000001019F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-12-30 16:41

Reported

2024-12-30 16:44

Platform

win10v2004-20241007-en

Max time kernel

146s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe"

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

rat gh0strat

Gh0strat family

gh0strat

PurpleFox

rootkit trojan purplefox

Purplefox family

purplefox

Drops file in Drivers directory

Description Indicator Process Target
File created C:\Windows\system32\drivers\QAssist.sys C:\Windows\SysWOW64\Ghxya.exe N/A

Sets service image path in registry

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys" C:\Windows\SysWOW64\Ghxya.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\Ghxya.exe N/A
N/A N/A C:\Windows\SysWOW64\Ghxya.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\Ghxya.exe C:\Users\Admin\AppData\Local\Temp\4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe N/A
File opened for modification C:\Windows\SysWOW64\Ghxya.exe C:\Users\Admin\AppData\Local\Temp\4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\Ghxya.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\Ghxya.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\PING.EXE N/A

System Network Configuration Discovery: Internet Connection Discovery

discovery
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A

Suspicious behavior: LoadsDriver

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\Ghxya.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\SysWOW64\Ghxya.exe N/A
Token: 33 N/A C:\Windows\SysWOW64\Ghxya.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\Ghxya.exe N/A
Token: 33 N/A C:\Windows\SysWOW64\Ghxya.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\Ghxya.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe

"C:\Users\Admin\AppData\Local\Temp\4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe"

C:\Windows\SysWOW64\Ghxya.exe

C:\Windows\SysWOW64\Ghxya.exe -auto

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\4976C7~1.EXE > nul

C:\Windows\SysWOW64\Ghxya.exe

C:\Windows\SysWOW64\Ghxya.exe -acsi

C:\Windows\SysWOW64\PING.EXE

ping -n 2 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 xsnb.e1.luyouxia.net udp
CN 123.99.198.201:21180 xsnb.e1.luyouxia.net tcp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
CN 123.99.198.201:21180 xsnb.e1.luyouxia.net tcp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 86.49.80.91.in-addr.arpa udp
CN 123.99.198.201:21180 xsnb.e1.luyouxia.net tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
CN 123.99.198.201:21180 xsnb.e1.luyouxia.net tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
CN 123.99.198.201:21180 xsnb.e1.luyouxia.net tcp
CN 123.99.198.201:21180 xsnb.e1.luyouxia.net tcp
CN 123.99.198.201:21180 xsnb.e1.luyouxia.net tcp

Files

memory/3496-0-0x0000000010000000-0x000000001019F000-memory.dmp

C:\Windows\SysWOW64\Ghxya.exe

MD5 1392f26d0e45aa0fb778e0116a7602a8
SHA1 b13d8b306d12fc5b7eeb2d2b521a72615e6eda19
SHA256 221a97b2e78e020e4460180a63324ba82bddd862ec123904b95afff91dd5a5d5
SHA512 4d9201a8b57e53bc285e6f29fb47211c4852141ea3d6a4465d3fff1451fc7e141bc4f268fad6ed7526414cb1f319ac823d81da8da96c4f9390ff2d6cdb6388b9