Analysis Overview
SHA256
74c8328aa88e1bd7f0e31b1f5b76f38c4361264ed95102c8416f42cdd41c0c80
Threat Level: Known bad
The file 74c8328aa88e1bd7f0e31b1f5b76f38c4361264ed95102c8416f42cdd41c0c80 was found to be: Known bad.
Malicious Activity Summary
Gh0strat
Gh0st RAT payload
Detect PurpleFox Rootkit
PurpleFox
Drops file in Drivers directory
Sets service image path in registry
Loads dropped DLL
Executes dropped EXE
Deletes itself
Drops file in System32 directory
Unsigned PE
Runs ping.exe
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: LoadsDriver
Suspicious use of WriteProcessMemory
Modifies data under HKEY_USERS
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-18 09:32
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-18 09:32
Reported
2024-06-18 09:35
Platform
win7-20240508-en
Max time kernel
145s
Max time network
153s
Command Line
Signatures
Detect PurpleFox 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
PurpleFox
Drops file in Drivers directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\system32\drivers\QAssist.sys | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
Sets service image path in registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys" | C:\Windows\SysWOW64\Jbcdt.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\Jbcdt.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\Jbcdt.exe | C:\Users\Admin\AppData\Local\Temp\74c8328aa88e1bd7f0e31b1f5b76f38c4361264ed95102c8416f42cdd41c0c80.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\Jbcdt.exe | C:\Users\Admin\AppData\Local\Temp\74c8328aa88e1bd7f0e31b1f5b76f38c4361264ed95102c8416f42cdd41c0c80.exe | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
| Set value (str) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
| Set value (str) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
| Set value (str) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" | C:\Windows\SysWOW64\Jbcdt.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\Jbcdt.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\74c8328aa88e1bd7f0e31b1f5b76f38c4361264ed95102c8416f42cdd41c0c80.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\74c8328aa88e1bd7f0e31b1f5b76f38c4361264ed95102c8416f42cdd41c0c80.exe
"C:\Users\Admin\AppData\Local\Temp\74c8328aa88e1bd7f0e31b1f5b76f38c4361264ed95102c8416f42cdd41c0c80.exe"
C:\Windows\SysWOW64\Jbcdt.exe
C:\Windows\SysWOW64\Jbcdt.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\74C832~1.EXE > nul
C:\Windows\SysWOW64\Jbcdt.exe
C:\Windows\SysWOW64\Jbcdt.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 | 456418.e3.luyouxia.net | udp |
| CN | 115.231.218.42:12822 | 456418.e3.luyouxia.net | tcp |
| CN | 115.231.218.42:12822 | 456418.e3.luyouxia.net | tcp |
| CN | 115.231.218.42:12822 | 456418.e3.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 456418.e3.luyouxia.net | udp |
| CN | 124.248.69.29:12822 | 456418.e3.luyouxia.net | tcp |
| CN | 124.248.69.29:12822 | 456418.e3.luyouxia.net | tcp |
| CN | 124.248.69.29:12822 | 456418.e3.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 456418.e3.luyouxia.net | udp |
| CN | 123.99.198.130:12822 | 456418.e3.luyouxia.net | tcp |
Files
memory/2756-0-0x0000000010000000-0x000000001019F000-memory.dmp
C:\Windows\SysWOW64\Jbcdt.exe
| MD5 | 5a4296be52773d17b2f7e5aa19c3bc84 |
| SHA1 | 1bbbdec2d90896aa376a32f0fad6493c53376995 |
| SHA256 | 74c8328aa88e1bd7f0e31b1f5b76f38c4361264ed95102c8416f42cdd41c0c80 |
| SHA512 | 6e5666767ab91055ee2b583402562be9a16b9db10c5c4e1e3b7244621415217d66ac5f3a49ea6a471727cb2c32339b472f738f30958cff9c6a21018c66273806 |
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-18 09:32
Reported
2024-06-18 09:35
Platform
win10v2004-20240508-en
Max time kernel
142s
Max time network
152s
Command Line
Signatures
Detect PurpleFox 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
PurpleFox
Drops file in Drivers directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\system32\drivers\QAssist.sys | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
Sets service image path in registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys" | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\Jbcdt.exe | C:\Users\Admin\AppData\Local\Temp\74c8328aa88e1bd7f0e31b1f5b76f38c4361264ed95102c8416f42cdd41c0c80.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\Jbcdt.exe | C:\Users\Admin\AppData\Local\Temp\74c8328aa88e1bd7f0e31b1f5b76f38c4361264ed95102c8416f42cdd41c0c80.exe | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
| Set value (str) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
| Set value (str) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" | C:\Windows\SysWOW64\Jbcdt.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\Jbcdt.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\74c8328aa88e1bd7f0e31b1f5b76f38c4361264ed95102c8416f42cdd41c0c80.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\Jbcdt.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\74c8328aa88e1bd7f0e31b1f5b76f38c4361264ed95102c8416f42cdd41c0c80.exe
"C:\Users\Admin\AppData\Local\Temp\74c8328aa88e1bd7f0e31b1f5b76f38c4361264ed95102c8416f42cdd41c0c80.exe"
C:\Windows\SysWOW64\Jbcdt.exe
C:\Windows\SysWOW64\Jbcdt.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\74C832~1.EXE > nul
C:\Windows\SysWOW64\Jbcdt.exe
C:\Windows\SysWOW64\Jbcdt.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 | 456418.e3.luyouxia.net | udp |
| US | 8.8.8.8:53 | 456418.e3.luyouxia.net | udp |
| US | 8.8.8.8:53 | 456418.e3.luyouxia.net | udp |
| US | 8.8.8.8:53 | 456418.e3.luyouxia.net | udp |
| US | 8.8.8.8:53 | 456418.e3.luyouxia.net | udp |
| US | 8.8.8.8:53 | 456418.e3.luyouxia.net | udp |
| US | 8.8.8.8:53 | 456418.e3.luyouxia.net | udp |
| US | 8.8.8.8:53 | 456418.e3.luyouxia.net | udp |
| US | 8.8.8.8:53 | 456418.e3.luyouxia.net | udp |
| US | 8.8.8.8:53 | 456418.e3.luyouxia.net | udp |
Files
memory/4704-1-0x0000000010000000-0x000000001019F000-memory.dmp
C:\Windows\SysWOW64\Jbcdt.exe
| MD5 | 5a4296be52773d17b2f7e5aa19c3bc84 |
| SHA1 | 1bbbdec2d90896aa376a32f0fad6493c53376995 |
| SHA256 | 74c8328aa88e1bd7f0e31b1f5b76f38c4361264ed95102c8416f42cdd41c0c80 |
| SHA512 | 6e5666767ab91055ee2b583402562be9a16b9db10c5c4e1e3b7244621415217d66ac5f3a49ea6a471727cb2c32339b472f738f30958cff9c6a21018c66273806 |
memory/2788-10-0x0000000010000000-0x000000001019F000-memory.dmp
memory/632-17-0x0000000010000000-0x000000001019F000-memory.dmp