Malware Analysis Report

2025-08-10 17:53

Sample ID 230823-ayql6sgf64
Target dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a
SHA256 dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a
Tags
upx gh0strat purplefox 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

dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a

Threat Level: Known bad

The file dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a was found to be: Known bad.

Malicious Activity Summary

upx gh0strat purplefox persistence rat rootkit trojan

Gh0st RAT payload

PurpleFox

Detect PurpleFox Rootkit

Gh0strat

Sets service image path in registry

Drops file in Drivers directory

Executes dropped EXE

Deletes itself

Loads dropped DLL

UPX packed file

Drops file in System32 directory

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Runs ping.exe

Suspicious use of WriteProcessMemory

Suspicious behavior: LoadsDriver

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-08-23 00:37

Signatures

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-23 00:37

Reported

2023-08-23 00:40

Platform

win7-20230712-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a.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
N/A N/A N/A N/A
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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
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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:\Windows\SysWOW64\sainbox.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\sainbox.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\sainbox.exe N/A
N/A N/A C:\Windows\SysWOW64\sainbox.exe N/A

Loads dropped DLL

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

UPX packed file

upx
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
N/A N/A N/A N/A
N/A N/A N/A N/A
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Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\sainbox.exe C:\Users\Admin\AppData\Local\Temp\dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a.exe N/A
File opened for modification C:\Windows\SysWOW64\sainbox.exe C:\Users\Admin\AppData\Local\Temp\dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a.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\sainbox.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\SysWOW64\sainbox.exe N/A
Token: 33 N/A C:\Windows\SysWOW64\sainbox.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\sainbox.exe N/A
Token: 33 N/A C:\Windows\SysWOW64\sainbox.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\sainbox.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2616 wrote to memory of 2224 N/A C:\Users\Admin\AppData\Local\Temp\dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a.exe C:\Windows\SysWOW64\cmd.exe
PID 2616 wrote to memory of 2224 N/A C:\Users\Admin\AppData\Local\Temp\dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a.exe C:\Windows\SysWOW64\cmd.exe
PID 2616 wrote to memory of 2224 N/A C:\Users\Admin\AppData\Local\Temp\dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a.exe C:\Windows\SysWOW64\cmd.exe
PID 2616 wrote to memory of 2224 N/A C:\Users\Admin\AppData\Local\Temp\dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a.exe C:\Windows\SysWOW64\cmd.exe
PID 2580 wrote to memory of 2800 N/A C:\Windows\SysWOW64\sainbox.exe C:\Windows\SysWOW64\sainbox.exe
PID 2580 wrote to memory of 2800 N/A C:\Windows\SysWOW64\sainbox.exe C:\Windows\SysWOW64\sainbox.exe
PID 2580 wrote to memory of 2800 N/A C:\Windows\SysWOW64\sainbox.exe C:\Windows\SysWOW64\sainbox.exe
PID 2580 wrote to memory of 2800 N/A C:\Windows\SysWOW64\sainbox.exe C:\Windows\SysWOW64\sainbox.exe
PID 2224 wrote to memory of 2420 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2224 wrote to memory of 2420 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2224 wrote to memory of 2420 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2224 wrote to memory of 2420 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a.exe

"C:\Users\Admin\AppData\Local\Temp\dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a.exe"

C:\Windows\SysWOW64\sainbox.exe

C:\Windows\SysWOW64\sainbox.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\DC22B1~1.EXE > nul

C:\Windows\SysWOW64\sainbox.exe

C:\Windows\SysWOW64\sainbox.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 6x514937w5.goho.co udp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
US 8.8.8.8:53 6x514937w5.goho.co udp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
US 8.8.8.8:53 6x514937w5.goho.co udp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp

Files

memory/2616-54-0x0000000000400000-0x0000000000547000-memory.dmp

memory/2616-55-0x0000000010000000-0x000000001019F000-memory.dmp

C:\Windows\SysWOW64\sainbox.exe

MD5 aa18d9b3660a8a907c2c2de4d4063db2
SHA1 d208fd390f9f467b757c0e464022bf6a7ed866ea
SHA256 dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a
SHA512 723dba95ccfb6dcd0bd47b7b05e4fab0ee9662780722196be56bb1b219038a806b4a9e0564ba03502b94012e9c3ddcac41dde66f68f52f60bf5862e9e4271905

memory/2580-64-0x0000000000400000-0x0000000000547000-memory.dmp

C:\Windows\SysWOW64\sainbox.exe

MD5 aa18d9b3660a8a907c2c2de4d4063db2
SHA1 d208fd390f9f467b757c0e464022bf6a7ed866ea
SHA256 dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a
SHA512 723dba95ccfb6dcd0bd47b7b05e4fab0ee9662780722196be56bb1b219038a806b4a9e0564ba03502b94012e9c3ddcac41dde66f68f52f60bf5862e9e4271905

memory/2580-74-0x00000000011F0000-0x0000000001337000-memory.dmp

C:\Windows\SysWOW64\sainbox.exe

MD5 aa18d9b3660a8a907c2c2de4d4063db2
SHA1 d208fd390f9f467b757c0e464022bf6a7ed866ea
SHA256 dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a
SHA512 723dba95ccfb6dcd0bd47b7b05e4fab0ee9662780722196be56bb1b219038a806b4a9e0564ba03502b94012e9c3ddcac41dde66f68f52f60bf5862e9e4271905

memory/2800-76-0x0000000000400000-0x0000000000547000-memory.dmp

\Windows\SysWOW64\sainbox.exe

MD5 aa18d9b3660a8a907c2c2de4d4063db2
SHA1 d208fd390f9f467b757c0e464022bf6a7ed866ea
SHA256 dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a
SHA512 723dba95ccfb6dcd0bd47b7b05e4fab0ee9662780722196be56bb1b219038a806b4a9e0564ba03502b94012e9c3ddcac41dde66f68f52f60bf5862e9e4271905

memory/2616-71-0x0000000000400000-0x0000000000547000-memory.dmp

memory/2580-83-0x0000000000400000-0x0000000000547000-memory.dmp

memory/2800-93-0x0000000000400000-0x0000000000547000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-23 00:37

Reported

2023-08-23 00:40

Platform

win10v2004-20230703-en

Max time kernel

149s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a.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
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Gh0st RAT payload

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

Executes dropped EXE

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

UPX packed file

upx
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
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\sainbox.exe C:\Users\Admin\AppData\Local\Temp\dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a.exe N/A
File opened for modification C:\Windows\SysWOW64\sainbox.exe C:\Users\Admin\AppData\Local\Temp\dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a.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\sainbox.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\SysWOW64\sainbox.exe N/A
Token: 33 N/A C:\Windows\SysWOW64\sainbox.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\sainbox.exe N/A
Token: 33 N/A C:\Windows\SysWOW64\sainbox.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\sainbox.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a.exe

"C:\Users\Admin\AppData\Local\Temp\dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a.exe"

C:\Windows\SysWOW64\sainbox.exe

C:\Windows\SysWOW64\sainbox.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\DC22B1~1.EXE > nul

C:\Windows\SysWOW64\sainbox.exe

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

C:\Windows\SysWOW64\PING.EXE

ping -n 2 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
US 8.8.8.8:53 6x514937w5.goho.co udp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 108.211.229.192.in-addr.arpa udp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 1.208.79.178.in-addr.arpa udp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
US 8.8.8.8:53 6x514937w5.goho.co udp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
US 8.8.8.8:53 1.77.109.52.in-addr.arpa udp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
US 8.8.8.8:53 5.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 6x514937w5.goho.co udp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp
CN 115.236.153.172:56019 6x514937w5.goho.co tcp

Files

memory/1316-133-0x0000000000400000-0x0000000000547000-memory.dmp

memory/1316-134-0x0000000010000000-0x000000001019F000-memory.dmp

C:\Windows\SysWOW64\sainbox.exe

MD5 aa18d9b3660a8a907c2c2de4d4063db2
SHA1 d208fd390f9f467b757c0e464022bf6a7ed866ea
SHA256 dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a
SHA512 723dba95ccfb6dcd0bd47b7b05e4fab0ee9662780722196be56bb1b219038a806b4a9e0564ba03502b94012e9c3ddcac41dde66f68f52f60bf5862e9e4271905

C:\Windows\SysWOW64\sainbox.exe

MD5 aa18d9b3660a8a907c2c2de4d4063db2
SHA1 d208fd390f9f467b757c0e464022bf6a7ed866ea
SHA256 dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a
SHA512 723dba95ccfb6dcd0bd47b7b05e4fab0ee9662780722196be56bb1b219038a806b4a9e0564ba03502b94012e9c3ddcac41dde66f68f52f60bf5862e9e4271905

memory/2044-144-0x0000000010000000-0x000000001019F000-memory.dmp

memory/1316-150-0x0000000000400000-0x0000000000547000-memory.dmp

memory/1704-152-0x0000000000400000-0x0000000000547000-memory.dmp

C:\Windows\SysWOW64\sainbox.exe

MD5 aa18d9b3660a8a907c2c2de4d4063db2
SHA1 d208fd390f9f467b757c0e464022bf6a7ed866ea
SHA256 dc22b182cdd1fd9e6d3e2f84dd764ee807975a161d69f46afef2b2649cf5772a
SHA512 723dba95ccfb6dcd0bd47b7b05e4fab0ee9662780722196be56bb1b219038a806b4a9e0564ba03502b94012e9c3ddcac41dde66f68f52f60bf5862e9e4271905

memory/2044-153-0x0000000000400000-0x0000000000547000-memory.dmp

memory/1704-169-0x0000000000400000-0x0000000000547000-memory.dmp