Malware Analysis Report

2024-09-22 14:58

Sample ID 240616-qedfhaycnn
Target acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b.exe
SHA256 acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b
Tags
gh0strat purplefox persistence rat rootkit trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b

Threat Level: Known bad

The file acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b.exe was found to be: Known bad.

Malicious Activity Summary

gh0strat purplefox persistence rat rootkit trojan

Detect PurpleFox Rootkit

PurpleFox

Gh0st RAT payload

Gh0strat

Drops file in Drivers directory

Sets service image path in registry

Checks computer location settings

Deletes itself

Loads dropped DLL

Executes dropped EXE

Enumerates connected drives

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Runs ping.exe

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Checks processor information in registry

Suspicious behavior: LoadsDriver

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-16 13:10

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-16 13:10

Reported

2024-06-16 13:12

Platform

win7-20240508-en

Max time kernel

145s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b.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

PurpleFox

rootkit trojan purplefox

Drops file in Drivers directory

Description Indicator Process Target
File created C:\Windows\system32\drivers\QAssist.sys C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.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:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.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:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A

Enumerates physical storage devices

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:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2896 wrote to memory of 1828 N/A C:\Users\Admin\AppData\Local\Temp\acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b.exe C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe
PID 2896 wrote to memory of 1828 N/A C:\Users\Admin\AppData\Local\Temp\acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b.exe C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe
PID 2896 wrote to memory of 1828 N/A C:\Users\Admin\AppData\Local\Temp\acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b.exe C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe
PID 2896 wrote to memory of 1828 N/A C:\Users\Admin\AppData\Local\Temp\acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b.exe C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe
PID 2896 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b.exe C:\Windows\SysWOW64\cmd.exe
PID 2896 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b.exe C:\Windows\SysWOW64\cmd.exe
PID 2896 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b.exe C:\Windows\SysWOW64\cmd.exe
PID 2896 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b.exe C:\Windows\SysWOW64\cmd.exe
PID 2084 wrote to memory of 2768 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2084 wrote to memory of 2768 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2084 wrote to memory of 2768 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2084 wrote to memory of 2768 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b.exe

"C:\Users\Admin\AppData\Local\Temp\acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b.exe"

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe

"C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe"

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\ACB615~1.EXE > nul

C:\Windows\SysWOW64\PING.EXE

ping -n 2 127.0.0.1

Network

Country Destination Domain Proto
HK 206.238.43.201:8080 tcp
HK 206.238.43.201:8080 tcp
HK 206.238.43.201:8080 tcp
HK 206.238.43.201:8080 tcp
HK 206.238.43.201:8080 tcp
HK 206.238.43.201:8080 tcp
HK 206.238.43.201:8080 tcp

Files

memory/2896-0-0x0000000010000000-0x000000001019F000-memory.dmp

\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe

MD5 ee89f7922a4ccc1147e7c427c832a35a
SHA1 573708eaf5ea90720c55c54e0dba672a18bc0d32
SHA256 acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b
SHA512 3db6f6e3dffef493c7257031fa03ad2beb7630e3ab36ef11464ab3a9c67abaebc37b949b0f73cc73827f05064db48745543fc0449a69345c9fe2a5b63e837fbb

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-16 13:10

Reported

2024-06-16 13:12

Platform

win10v2004-20240611-en

Max time kernel

120s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b.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

PurpleFox

rootkit trojan purplefox

Drops file in Drivers directory

Description Indicator Process Target
File created C:\Windows\system32\drivers\QAssist.sys C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.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:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\Q: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\T: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\W: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\X: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\E: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\G: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\M: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\O: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\R: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\U: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\V: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\Y: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\B: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\H: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\J: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\L: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\N: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\I: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\K: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\P: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\S: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
File opened (read-only) \??\Z: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A

Runs ping.exe

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A

Suspicious behavior: LoadsDriver

Description Indicator Process Target
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b.exe

"C:\Users\Admin\AppData\Local\Temp\acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b.exe"

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe

"C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe"

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\ACB615~1.EXE > nul

C:\Windows\SysWOW64\PING.EXE

ping -n 2 127.0.0.1

Network

Country Destination Domain Proto
HK 206.238.43.201:8080 tcp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 201.43.238.206.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 145.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 105.83.221.88.in-addr.arpa udp

Files

memory/3760-1-0x0000000010000000-0x000000001019F000-memory.dmp

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\Phija.exe

MD5 ee89f7922a4ccc1147e7c427c832a35a
SHA1 573708eaf5ea90720c55c54e0dba672a18bc0d32
SHA256 acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b
SHA512 3db6f6e3dffef493c7257031fa03ad2beb7630e3ab36ef11464ab3a9c67abaebc37b949b0f73cc73827f05064db48745543fc0449a69345c9fe2a5b63e837fbb

memory/2568-14-0x0000000010000000-0x000000001019F000-memory.dmp