Malware Analysis Report

2024-12-07 13:34

Sample ID 241107-gwgptazjfl
Target 3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc
SHA256 3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc

Threat Level: Known bad

The file 3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc was found to be: Known bad.

Malicious Activity Summary

gh0strat purplefox discovery persistence rat rootkit trojan

Gh0st RAT payload

Purplefox family

Gh0strat family

Detect PurpleFox Rootkit

Gh0strat

PurpleFox

Sets service image path in registry

Drops file in Drivers directory

Loads dropped DLL

Deletes itself

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

2024-11-07 06:09

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-07 06:09

Reported

2024-11-07 06:11

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc.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
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
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\ÓãÃÅ.kx 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\ÓãÃÅ.kx N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\ÓãÃÅ.kx N/A
N/A N/A C:\Windows\SysWOW64\ÓãÃÅ.kx N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\ÓãÃÅ.kx C:\Users\Admin\AppData\Local\Temp\3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc.exe N/A
File opened for modification C:\Windows\SysWOW64\ÓãÃÅ.kx C:\Users\Admin\AppData\Local\Temp\3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc.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\3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\ÓãÃÅ.kx N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\ÓãÃÅ.kx 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\ÓãÃÅ.kx N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\SysWOW64\ÓãÃÅ.kx N/A
Token: 33 N/A C:\Windows\SysWOW64\ÓãÃÅ.kx N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\ÓãÃÅ.kx N/A
Token: 33 N/A C:\Windows\SysWOW64\ÓãÃÅ.kx N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\ÓãÃÅ.kx N/A

Processes

C:\Users\Admin\AppData\Local\Temp\3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc.exe

"C:\Users\Admin\AppData\Local\Temp\3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc.exe"

C:\Windows\SysWOW64\ÓãÃÅ.kx

C:\Windows\SysWOW64\ÓãÃÅ.kx -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\3793F8~1.EXE > nul

C:\Windows\SysWOW64\ÓãÃÅ.kx

C:\Windows\SysWOW64\ÓãÃÅ.kx -acsi

C:\Windows\SysWOW64\PING.EXE

ping -n 2 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
N/A 127.0.0.1:27798 tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
N/A 127.0.0.1:27798 tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
N/A 127.0.0.1:27798 tcp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 71.209.201.84.in-addr.arpa udp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
US 8.8.8.8:53 168.253.116.51.in-addr.arpa udp

Files

memory/2016-0-0x0000000010000000-0x000000001019F000-memory.dmp

C:\Windows\SysWOW64\ÓãÃÅ.kx

MD5 9204d1a9f144fcb090c9c90dc47f84a3
SHA1 07d6204567cdf545123ae2eccf2012f65b477422
SHA256 3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc
SHA512 4dfe9d36dfd2767b0b0b88a8522f57d2137e5cffbc99609c1219224fd3433755caf00b918a5fd64a02ae572c17f099898be6fc5adc747e85e412e3bc935e719f

memory/428-10-0x0000000010000000-0x000000001019F000-memory.dmp

memory/1520-18-0x0000000010000000-0x000000001019F000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-07 06:09

Reported

2024-11-07 06:11

Platform

win7-20241023-en

Max time kernel

146s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc.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\ÓãÃÅ.kx 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\ÓãÃÅ.kx 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\ÓãÃÅ.kx N/A
N/A N/A C:\Windows\SysWOW64\ÓãÃÅ.kx N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\ÓãÃÅ.kx N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\ÓãÃÅ.kx C:\Users\Admin\AppData\Local\Temp\3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc.exe N/A
File opened for modification C:\Windows\SysWOW64\ÓãÃÅ.kx C:\Users\Admin\AppData\Local\Temp\3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc.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\3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\ÓãÃÅ.kx N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\ÓãÃÅ.kx 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\ÓãÃÅ.kx N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\SysWOW64\ÓãÃÅ.kx N/A
Token: 33 N/A C:\Windows\SysWOW64\ÓãÃÅ.kx N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\ÓãÃÅ.kx N/A
Token: 33 N/A C:\Windows\SysWOW64\ÓãÃÅ.kx N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\ÓãÃÅ.kx N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2076 wrote to memory of 1656 N/A C:\Users\Admin\AppData\Local\Temp\3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc.exe C:\Windows\SysWOW64\cmd.exe
PID 2076 wrote to memory of 1656 N/A C:\Users\Admin\AppData\Local\Temp\3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc.exe C:\Windows\SysWOW64\cmd.exe
PID 2076 wrote to memory of 1656 N/A C:\Users\Admin\AppData\Local\Temp\3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc.exe C:\Windows\SysWOW64\cmd.exe
PID 2076 wrote to memory of 1656 N/A C:\Users\Admin\AppData\Local\Temp\3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc.exe C:\Windows\SysWOW64\cmd.exe
PID 2432 wrote to memory of 2584 N/A C:\Windows\SysWOW64\ÓãÃÅ.kx C:\Windows\SysWOW64\ÓãÃÅ.kx
PID 2432 wrote to memory of 2584 N/A C:\Windows\SysWOW64\ÓãÃÅ.kx C:\Windows\SysWOW64\ÓãÃÅ.kx
PID 2432 wrote to memory of 2584 N/A C:\Windows\SysWOW64\ÓãÃÅ.kx C:\Windows\SysWOW64\ÓãÃÅ.kx
PID 2432 wrote to memory of 2584 N/A C:\Windows\SysWOW64\ÓãÃÅ.kx C:\Windows\SysWOW64\ÓãÃÅ.kx
PID 1656 wrote to memory of 2968 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1656 wrote to memory of 2968 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1656 wrote to memory of 2968 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1656 wrote to memory of 2968 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc.exe

"C:\Users\Admin\AppData\Local\Temp\3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc.exe"

C:\Windows\SysWOW64\ÓãÃÅ.kx

C:\Windows\SysWOW64\ÓãÃÅ.kx -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\3793F8~1.EXE > nul

C:\Windows\SysWOW64\ÓãÃÅ.kx

C:\Windows\SysWOW64\ÓãÃÅ.kx -acsi

C:\Windows\SysWOW64\PING.EXE

ping -n 2 127.0.0.1

Network

Country Destination Domain Proto
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp
N/A 127.0.0.1:27798 tcp

Files

memory/2076-0-0x0000000010000000-0x000000001019F000-memory.dmp

C:\Windows\SysWOW64\ÓãÃÅ.kx

MD5 9204d1a9f144fcb090c9c90dc47f84a3
SHA1 07d6204567cdf545123ae2eccf2012f65b477422
SHA256 3793f852766cc51db8469910c5f6c72ba68cd83ccd4423def8ee87148a0918bc
SHA512 4dfe9d36dfd2767b0b0b88a8522f57d2137e5cffbc99609c1219224fd3433755caf00b918a5fd64a02ae572c17f099898be6fc5adc747e85e412e3bc935e719f