Analysis Overview
SHA256
cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841
Threat Level: Known bad
The file cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841 was found to be: Known bad.
Malicious Activity Summary
PurpleFox
Detect PurpleFox Rootkit
Gh0st RAT payload
Gh0strat
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
System Network Configuration Discovery: Internet Connection Discovery
System Location Discovery: System Language Discovery
Modifies data under HKEY_USERS
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: LoadsDriver
Suspicious use of WriteProcessMemory
Runs ping.exe
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-09-29 13:17
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-29 13:17
Reported
2024-09-29 13:19
Platform
win7-20240903-en
Max time kernel
145s
Max time network
150s
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\Phxph.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\Phxph.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\Phxph.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\Phxph.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\Phxph.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\Phxph.exe | C:\Users\Admin\AppData\Local\Temp\cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\Phxph.exe | C:\Users\Admin\AppData\Local\Temp\cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\PING.EXE | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\Phxph.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\Phxph.exe | N/A |
System Network Configuration Discovery: Internet Connection Discovery
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cmd.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\Phxph.exe | N/A |
| Set value (str) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix | C:\Windows\SysWOW64\Phxph.exe | N/A |
| Set value (str) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" | C:\Windows\SysWOW64\Phxph.exe | N/A |
| Set value (str) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" | C:\Windows\SysWOW64\Phxph.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\Phxph.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\SysWOW64\Phxph.exe | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\Phxph.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\Phxph.exe | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\Phxph.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\Phxph.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe
"C:\Users\Admin\AppData\Local\Temp\cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe"
C:\Windows\SysWOW64\Phxph.exe
C:\Windows\SysWOW64\Phxph.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\CB140D~1.EXE > nul
C:\Windows\SysWOW64\Phxph.exe
C:\Windows\SysWOW64\Phxph.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 | zhemendianfe.b1.luyouxia.net | udp |
| CN | 123.99.198.201:40123 | zhemendianfe.b1.luyouxia.net | tcp |
| CN | 123.99.198.201:40123 | zhemendianfe.b1.luyouxia.net | tcp |
| CN | 123.99.198.201:40123 | zhemendianfe.b1.luyouxia.net | tcp |
| CN | 123.99.198.201:40123 | zhemendianfe.b1.luyouxia.net | tcp |
| CN | 123.99.198.201:40123 | zhemendianfe.b1.luyouxia.net | tcp |
| CN | 123.99.198.201:40123 | zhemendianfe.b1.luyouxia.net | tcp |
| CN | 123.99.198.201:40123 | zhemendianfe.b1.luyouxia.net | tcp |
Files
memory/2236-0-0x0000000010000000-0x000000001019F000-memory.dmp
C:\Windows\SysWOW64\Phxph.exe
| MD5 | cb709753702fb448c25bc16703c48850 |
| SHA1 | 55279d948a76e7f4de7bc7c55a4cc9b919e242e3 |
| SHA256 | cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841 |
| SHA512 | b7b3fdbce2409d6d8406a18e406371210538b95e855102650aae98ea3714364ad31edaa70730f548da709062ef47b6b16520642fdbb2aa61fa58c9b867bb6b8e |
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-29 13:17
Reported
2024-09-29 13:19
Platform
win10v2004-20240802-en
Max time kernel
145s
Max time network
149s
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\Phxph.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\Phxph.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\Phxph.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\Phxph.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\Phxph.exe | C:\Users\Admin\AppData\Local\Temp\cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\Phxph.exe | C:\Users\Admin\AppData\Local\Temp\cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\Phxph.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\Phxph.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
| 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 |
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\Phxph.exe | N/A |
| Set value (str) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" | C:\Windows\SysWOW64\Phxph.exe | N/A |
| Set value (str) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" | C:\Windows\SysWOW64\Phxph.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\Phxph.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\SysWOW64\Phxph.exe | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\Phxph.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\Phxph.exe | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\Phxph.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\Phxph.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe
"C:\Users\Admin\AppData\Local\Temp\cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe"
C:\Windows\SysWOW64\Phxph.exe
C:\Windows\SysWOW64\Phxph.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\CB140D~1.EXE > nul
C:\Windows\SysWOW64\Phxph.exe
C:\Windows\SysWOW64\Phxph.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 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | zhemendianfe.b1.luyouxia.net | udp |
| CN | 123.99.198.201:40123 | zhemendianfe.b1.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| CN | 123.99.198.201:40123 | zhemendianfe.b1.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| CN | 123.99.198.201:40123 | zhemendianfe.b1.luyouxia.net | tcp |
| CN | 123.99.198.201:40123 | zhemendianfe.b1.luyouxia.net | tcp |
| US | 52.111.229.48:443 | tcp | |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| CN | 123.99.198.201:40123 | zhemendianfe.b1.luyouxia.net | tcp |
| CN | 123.99.198.201:40123 | zhemendianfe.b1.luyouxia.net | tcp |
| CN | 123.99.198.201:40123 | zhemendianfe.b1.luyouxia.net | tcp |
Files
memory/180-0-0x0000000010000000-0x000000001019F000-memory.dmp
C:\Windows\SysWOW64\Phxph.exe
| MD5 | cb709753702fb448c25bc16703c48850 |
| SHA1 | 55279d948a76e7f4de7bc7c55a4cc9b919e242e3 |
| SHA256 | cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841 |
| SHA512 | b7b3fdbce2409d6d8406a18e406371210538b95e855102650aae98ea3714364ad31edaa70730f548da709062ef47b6b16520642fdbb2aa61fa58c9b867bb6b8e |
memory/1764-10-0x0000000010000000-0x000000001019F000-memory.dmp
memory/4088-17-0x0000000010000000-0x000000001019F000-memory.dmp