Analysis Overview
SHA256
f25114b40c3e55e9bd38866e50aba6622ee140fff1e616010c5e48527d140f90
Threat Level: Known bad
The file f25114b40c3e55e9bd38866e50aba6622ee140fff1e616010c5e48527d140f90 was found to be: Known bad.
Malicious Activity Summary
Detect PurpleFox Rootkit
PurpleFox
Sets service image path in registry
Drops file in Drivers directory
Executes dropped EXE
Deletes itself
Enumerates connected drives
Drops file in Windows directory
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Runs ping.exe
Suspicious behavior: LoadsDriver
Modifies data under HKEY_USERS
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-08-28 13:30
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-08-28 13:30
Reported
2023-08-28 13:33
Platform
win7-20230712-en
Max time kernel
119s
Max time network
123s
Command Line
Signatures
Detect PurpleFox Rootkit
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
PurpleFox
Drops file in Drivers directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\system32\drivers\QAssist.sys | C:\Windows\Aqiyq.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\Aqiyq.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\Aqiyq.exe | N/A |
| N/A | N/A | C:\Windows\Aqiyq.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\J: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\N: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\S: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\V: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\W: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\B: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\I: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\T: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\X: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\E: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\K: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\O: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\P: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\Q: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\R: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\Z: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\H: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\M: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\U: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\Y: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\G: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\L: | C:\Windows\Aqiyq.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\Aqiyq.exe | C:\Users\Admin\AppData\Local\Temp\f25114b40c3e55e9bd38866e50aba6622ee140fff1e616010c5e48527d140f90.exe | N/A |
| File opened for modification | C:\Windows\Aqiyq.exe | C:\Users\Admin\AppData\Local\Temp\f25114b40c3e55e9bd38866e50aba6622ee140fff1e616010c5e48527d140f90.exe | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie | C:\Windows\Aqiyq.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum\Version = "7" | C:\Windows\Aqiyq.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings | C:\Windows\Aqiyq.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections | C:\Windows\Aqiyq.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings | C:\Windows\Aqiyq.exe | N/A |
| Set value (data) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 | C:\Windows\Aqiyq.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum | C:\Windows\Aqiyq.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft | C:\Windows\Aqiyq.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum | C:\Windows\Aqiyq.exe | N/A |
| Set value (data) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 | C:\Windows\Aqiyq.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" | C:\Windows\Aqiyq.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software | C:\Windows\Aqiyq.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\Aqiyq.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\f25114b40c3e55e9bd38866e50aba6622ee140fff1e616010c5e48527d140f90.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\Aqiyq.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f25114b40c3e55e9bd38866e50aba6622ee140fff1e616010c5e48527d140f90.exe
"C:\Users\Admin\AppData\Local\Temp\f25114b40c3e55e9bd38866e50aba6622ee140fff1e616010c5e48527d140f90.exe"
C:\Windows\Aqiyq.exe
C:\Windows\Aqiyq.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\F25114~1.EXE > nul
C:\Windows\Aqiyq.exe
C:\Windows\Aqiyq.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 | aaaa1688.e1.luyouxia.net | udp |
| CN | 123.99.198.201:22154 | aaaa1688.e1.luyouxia.net | tcp |
Files
memory/2672-0-0x0000000010000000-0x00000000101B0000-memory.dmp
C:\Windows\Aqiyq.exe
| MD5 | c90ab34fbac37c0b09dc5dea5818d803 |
| SHA1 | 028394346e783de10ea614d9d07cad27b75188f3 |
| SHA256 | f25114b40c3e55e9bd38866e50aba6622ee140fff1e616010c5e48527d140f90 |
| SHA512 | 8e83bd188a4f1e5eb783b99545d1c26fda557ac167c5b2c0fecb2d01c198e44ffd3938215c692a71ee3a3f6d0a327f929eed0b93a2ce578d8a3a946c56c0ee49 |
C:\Windows\Aqiyq.exe
| MD5 | c90ab34fbac37c0b09dc5dea5818d803 |
| SHA1 | 028394346e783de10ea614d9d07cad27b75188f3 |
| SHA256 | f25114b40c3e55e9bd38866e50aba6622ee140fff1e616010c5e48527d140f90 |
| SHA512 | 8e83bd188a4f1e5eb783b99545d1c26fda557ac167c5b2c0fecb2d01c198e44ffd3938215c692a71ee3a3f6d0a327f929eed0b93a2ce578d8a3a946c56c0ee49 |
C:\Windows\Aqiyq.exe
| MD5 | c90ab34fbac37c0b09dc5dea5818d803 |
| SHA1 | 028394346e783de10ea614d9d07cad27b75188f3 |
| SHA256 | f25114b40c3e55e9bd38866e50aba6622ee140fff1e616010c5e48527d140f90 |
| SHA512 | 8e83bd188a4f1e5eb783b99545d1c26fda557ac167c5b2c0fecb2d01c198e44ffd3938215c692a71ee3a3f6d0a327f929eed0b93a2ce578d8a3a946c56c0ee49 |
Analysis: behavioral2
Detonation Overview
Submitted
2023-08-28 13:30
Reported
2023-08-28 13:33
Platform
win10v2004-20230703-en
Max time kernel
143s
Max time network
148s
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 |
PurpleFox
Drops file in Drivers directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\system32\drivers\QAssist.sys | C:\Windows\Aqiyq.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\Aqiyq.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Aqiyq.exe | N/A |
| N/A | N/A | C:\Windows\Aqiyq.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\V: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\Z: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\E: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\H: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\J: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\K: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\O: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\S: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\L: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\N: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\Y: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\G: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\P: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\R: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\X: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\W: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\B: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\I: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\M: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\Q: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\T: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\U: | C:\Windows\Aqiyq.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\Aqiyq.exe | C:\Users\Admin\AppData\Local\Temp\f25114b40c3e55e9bd38866e50aba6622ee140fff1e616010c5e48527d140f90.exe | N/A |
| File opened for modification | C:\Windows\Aqiyq.exe | C:\Users\Admin\AppData\Local\Temp\f25114b40c3e55e9bd38866e50aba6622ee140fff1e616010c5e48527d140f90.exe | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum | C:\Windows\Aqiyq.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software | C:\Windows\Aqiyq.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft | C:\Windows\Aqiyq.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie | C:\Windows\Aqiyq.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7" | C:\Windows\Aqiyq.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\Aqiyq.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\f25114b40c3e55e9bd38866e50aba6622ee140fff1e616010c5e48527d140f90.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\Aqiyq.exe | N/A |
| Token: 33 | N/A | C:\Windows\Aqiyq.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Aqiyq.exe | N/A |
| Token: 33 | N/A | C:\Windows\Aqiyq.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Aqiyq.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f25114b40c3e55e9bd38866e50aba6622ee140fff1e616010c5e48527d140f90.exe
"C:\Users\Admin\AppData\Local\Temp\f25114b40c3e55e9bd38866e50aba6622ee140fff1e616010c5e48527d140f90.exe"
C:\Windows\Aqiyq.exe
C:\Windows\Aqiyq.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\F25114~1.EXE > nul
C:\Windows\Aqiyq.exe
C:\Windows\Aqiyq.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 | 208.194.73.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 254.1.248.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | aaaa1688.e1.luyouxia.net | udp |
| CN | 123.99.198.201:22154 | aaaa1688.e1.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 67.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 201.198.99.123.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 7.173.189.20.in-addr.arpa | udp |
Files
memory/1920-0-0x0000000010000000-0x00000000101B0000-memory.dmp
C:\Windows\Aqiyq.exe
| MD5 | c90ab34fbac37c0b09dc5dea5818d803 |
| SHA1 | 028394346e783de10ea614d9d07cad27b75188f3 |
| SHA256 | f25114b40c3e55e9bd38866e50aba6622ee140fff1e616010c5e48527d140f90 |
| SHA512 | 8e83bd188a4f1e5eb783b99545d1c26fda557ac167c5b2c0fecb2d01c198e44ffd3938215c692a71ee3a3f6d0a327f929eed0b93a2ce578d8a3a946c56c0ee49 |
C:\Windows\Aqiyq.exe
| MD5 | c90ab34fbac37c0b09dc5dea5818d803 |
| SHA1 | 028394346e783de10ea614d9d07cad27b75188f3 |
| SHA256 | f25114b40c3e55e9bd38866e50aba6622ee140fff1e616010c5e48527d140f90 |
| SHA512 | 8e83bd188a4f1e5eb783b99545d1c26fda557ac167c5b2c0fecb2d01c198e44ffd3938215c692a71ee3a3f6d0a327f929eed0b93a2ce578d8a3a946c56c0ee49 |
memory/2944-11-0x0000000010000000-0x00000000101B0000-memory.dmp
C:\Windows\Aqiyq.exe
| MD5 | c90ab34fbac37c0b09dc5dea5818d803 |
| SHA1 | 028394346e783de10ea614d9d07cad27b75188f3 |
| SHA256 | f25114b40c3e55e9bd38866e50aba6622ee140fff1e616010c5e48527d140f90 |
| SHA512 | 8e83bd188a4f1e5eb783b99545d1c26fda557ac167c5b2c0fecb2d01c198e44ffd3938215c692a71ee3a3f6d0a327f929eed0b93a2ce578d8a3a946c56c0ee49 |
memory/3868-19-0x0000000010000000-0x00000000101B0000-memory.dmp