Analysis Overview
SHA256
a45ea3768fd3f3aeea79eae6fb74ecd374123a48219a6a33867cafa7a50ee9e7
Threat Level: Known bad
The file a45ea3768fd3f3aeea79eae6fb74ecd374123a48219a6a33867cafa7a50ee9e7 was found to be: Known bad.
Malicious Activity Summary
Gh0strat
Gh0st RAT payload
Detect PurpleFox Rootkit
PurpleFox
Sets service image path in registry
Drops file in Drivers directory
Deletes itself
Loads dropped DLL
Executes dropped EXE
Enumerates connected drives
Drops file in System32 directory
Unsigned PE
Runs ping.exe
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: LoadsDriver
Checks processor information in registry
Modifies data under HKEY_USERS
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-19 09:58
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-19 09:58
Reported
2024-03-19 10:00
Platform
win7-20240221-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 |
Gh0st RAT payload
| Description | Indicator | Process | Target |
| 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\Pqija.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\Pqija.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\Pqija.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\Pqija.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\Pqija.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\Pqija.exe | C:\Users\Admin\AppData\Local\Temp\a45ea3768fd3f3aeea79eae6fb74ecd374123a48219a6a33867cafa7a50ee9e7.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\Pqija.exe | C:\Users\Admin\AppData\Local\Temp\a45ea3768fd3f3aeea79eae6fb74ecd374123a48219a6a33867cafa7a50ee9e7.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\Pqija.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\a45ea3768fd3f3aeea79eae6fb74ecd374123a48219a6a33867cafa7a50ee9e7.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\SysWOW64\Pqija.exe | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\Pqija.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\Pqija.exe | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\Pqija.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\Pqija.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\a45ea3768fd3f3aeea79eae6fb74ecd374123a48219a6a33867cafa7a50ee9e7.exe
"C:\Users\Admin\AppData\Local\Temp\a45ea3768fd3f3aeea79eae6fb74ecd374123a48219a6a33867cafa7a50ee9e7.exe"
C:\Windows\SysWOW64\Pqija.exe
C:\Windows\SysWOW64\Pqija.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\A45EA3~1.EXE > nul
C:\Windows\SysWOW64\Pqija.exe
C:\Windows\SysWOW64\Pqija.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 | 1819.e3.luyouxia.net | udp |
| CN | 124.248.69.29:12871 | 1819.e3.luyouxia.net | tcp |
| CN | 124.248.69.29:12871 | 1819.e3.luyouxia.net | tcp |
| CN | 124.248.69.29:12871 | 1819.e3.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 1819.e3.luyouxia.net | udp |
| CN | 123.99.198.130:12871 | 1819.e3.luyouxia.net | tcp |
| CN | 123.99.198.130:12871 | 1819.e3.luyouxia.net | tcp |
| CN | 123.99.198.130:12871 | 1819.e3.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 1819.e3.luyouxia.net | udp |
| CN | 124.248.69.29:12871 | 1819.e3.luyouxia.net | tcp |
Files
memory/2876-0-0x0000000010000000-0x000000001019F000-memory.dmp
C:\Windows\SysWOW64\Pqija.exe
| MD5 | 1a7c25c0cb244a842466947a0012bd16 |
| SHA1 | b835154e529e3c1717d5ee65fbb6e858b43b97dc |
| SHA256 | a45ea3768fd3f3aeea79eae6fb74ecd374123a48219a6a33867cafa7a50ee9e7 |
| SHA512 | 84c59c95c497e554a2fd0b71c376470a292cd29d44f7d716c0d6ff2d7832d831598f75f33451050632cfe9c6a38747bd70791fc61d3c84d885f760e2bd9d1b56 |
memory/2668-18-0x0000000010000000-0x000000001019F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-19 09:58
Reported
2024-03-19 10:00
Platform
win10v2004-20240226-en
Max time kernel
146s
Max time network
151s
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\Pqija.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\Pqija.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\Pqija.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\Pqija.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\M: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\O: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\Q: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\T: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\U: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\I: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\J: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\K: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\W: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\Y: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\X: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\E: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\L: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\V: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\P: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\S: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\G: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\H: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\N: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\B: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\R: | C:\Windows\SysWOW64\Pqija.exe | N/A |
| File opened (read-only) | \??\Z: | C:\Windows\SysWOW64\Pqija.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\Pqija.exe | C:\Users\Admin\AppData\Local\Temp\a45ea3768fd3f3aeea79eae6fb74ecd374123a48219a6a33867cafa7a50ee9e7.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\Pqija.exe | C:\Users\Admin\AppData\Local\Temp\a45ea3768fd3f3aeea79eae6fb74ecd374123a48219a6a33867cafa7a50ee9e7.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windows\SysWOW64\Pqija.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\SysWOW64\Pqija.exe | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum | C:\Windows\SysWOW64\Pqija.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software | C:\Windows\SysWOW64\Pqija.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft | C:\Windows\SysWOW64\Pqija.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie | C:\Windows\SysWOW64\Pqija.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7" | C:\Windows\SysWOW64\Pqija.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:\Windows\SysWOW64\Pqija.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\a45ea3768fd3f3aeea79eae6fb74ecd374123a48219a6a33867cafa7a50ee9e7.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\SysWOW64\Pqija.exe | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\Pqija.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\Pqija.exe | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\Pqija.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\Pqija.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\a45ea3768fd3f3aeea79eae6fb74ecd374123a48219a6a33867cafa7a50ee9e7.exe
"C:\Users\Admin\AppData\Local\Temp\a45ea3768fd3f3aeea79eae6fb74ecd374123a48219a6a33867cafa7a50ee9e7.exe"
C:\Windows\SysWOW64\Pqija.exe
C:\Windows\SysWOW64\Pqija.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\A45EA3~1.EXE > nul
C:\Windows\SysWOW64\Pqija.exe
C:\Windows\SysWOW64\Pqija.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 | 1819.e3.luyouxia.net | udp |
| CN | 115.231.218.42:12871 | 1819.e3.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 210.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| CN | 115.231.218.42:12871 | 1819.e3.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 79.121.231.20.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 | 217.135.221.88.in-addr.arpa | udp |
| CN | 115.231.218.42:12871 | 1819.e3.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1819.e3.luyouxia.net | udp |
| CN | 124.248.69.29:12871 | 1819.e3.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| CN | 124.248.69.29:12871 | 1819.e3.luyouxia.net | tcp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| CN | 124.248.69.29:12871 | 1819.e3.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 1819.e3.luyouxia.net | udp |
| CN | 124.248.69.29:12871 | 1819.e3.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 29.69.248.124.in-addr.arpa | udp |
Files
memory/3160-0-0x0000000010000000-0x000000001019F000-memory.dmp
C:\Windows\SysWOW64\Pqija.exe
| MD5 | 1a7c25c0cb244a842466947a0012bd16 |
| SHA1 | b835154e529e3c1717d5ee65fbb6e858b43b97dc |
| SHA256 | a45ea3768fd3f3aeea79eae6fb74ecd374123a48219a6a33867cafa7a50ee9e7 |
| SHA512 | 84c59c95c497e554a2fd0b71c376470a292cd29d44f7d716c0d6ff2d7832d831598f75f33451050632cfe9c6a38747bd70791fc61d3c84d885f760e2bd9d1b56 |
memory/4868-10-0x0000000010000000-0x000000001019F000-memory.dmp
memory/2008-17-0x0000000010000000-0x000000001019F000-memory.dmp