Analysis Overview
SHA256
37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad
Threat Level: Known bad
The file 37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad was found to be: Known bad.
Malicious Activity Summary
Gh0strat
PurpleFox
Detect PurpleFox Rootkit
Gh0st RAT payload
Drops file in Drivers directory
Sets service image path in registry
UPX packed file
Deletes itself
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Enumerates connected drives
Unsigned PE
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Checks processor information in registry
Suspicious use of WriteProcessMemory
Suspicious behavior: LoadsDriver
Runs ping.exe
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-18 09:29
Signatures
UPX packed file
| 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
2024-06-18 09:29
Reported
2024-06-18 09:32
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 |
| 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 |
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 |
| 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:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.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:\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 |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad.exe | N/A |
UPX packed file
| 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 |
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 AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe | N/A |
| Token: 33 | N/A | C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe | N/A |
| Token: 33 | N/A | C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad.exe
"C:\Users\Admin\AppData\Local\Temp\37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad.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\37D67A~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/2040-0-0x0000000000400000-0x0000000000547000-memory.dmp
memory/2040-1-0x0000000010000000-0x000000001019F000-memory.dmp
memory/2040-13-0x0000000002B50000-0x0000000002C97000-memory.dmp
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe
| MD5 | bd50ba38259a5c7a2a376ea20c16d895 |
| SHA1 | a23cc9f184aa87b8ca1e5fe1589b192d303fe0dd |
| SHA256 | 37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad |
| SHA512 | 30ebadd2be0c2095e7221c18a58b0799830e321a94bc5e102f48842c331c0b5743565759a5c2e1c635a7fb5efb03e10b2eaf3da4b9a41dd0bfce16a454d16c66 |
memory/2040-16-0x0000000000400000-0x0000000000547000-memory.dmp
memory/2852-15-0x0000000000400000-0x0000000000547000-memory.dmp
memory/2852-17-0x0000000010000000-0x000000001019F000-memory.dmp
memory/2852-33-0x0000000000400000-0x0000000000547000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-18 09:29
Reported
2024-06-18 09:32
Platform
win10v2004-20240508-en
Max time kernel
141s
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 |
| 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:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.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:\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-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad.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 |
UPX packed file
| 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 |
Enumerates connected drives
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | 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
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 AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe | N/A |
| Token: 33 | N/A | C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe | N/A |
| Token: 33 | N/A | C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad.exe
"C:\Users\Admin\AppData\Local\Temp\37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad.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\37D67A~1.EXE > nul
C:\Windows\SysWOW64\PING.EXE
ping -n 2 127.0.0.1
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| HK | 206.238.43.201:8080 | tcp | |
| US | 8.8.8.8:53 | 152.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 201.43.238.206.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.251.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
Files
memory/4928-0-0x0000000000400000-0x0000000000547000-memory.dmp
memory/4928-1-0x0000000010000000-0x000000001019F000-memory.dmp
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\Phija.exe
| MD5 | bd50ba38259a5c7a2a376ea20c16d895 |
| SHA1 | a23cc9f184aa87b8ca1e5fe1589b192d303fe0dd |
| SHA256 | 37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad |
| SHA512 | 30ebadd2be0c2095e7221c18a58b0799830e321a94bc5e102f48842c331c0b5743565759a5c2e1c635a7fb5efb03e10b2eaf3da4b9a41dd0bfce16a454d16c66 |
memory/724-17-0x0000000000400000-0x0000000000547000-memory.dmp
memory/4928-16-0x0000000000400000-0x0000000000547000-memory.dmp
memory/724-35-0x0000000000400000-0x0000000000547000-memory.dmp