Analysis Overview
SHA256
7a27dc2baf775a5e5c3fcd21dbf30708a9af444246caac78bd863ad1a8400357
Threat Level: Known bad
The file 7a27dc2baf775a5e5c3fcd21dbf30708a9af444246caac78bd863ad1a8400357 was found to be: Known bad.
Malicious Activity Summary
PurpleFox
Detect PurpleFox Rootkit
Sets service image path in registry
Drops file in Drivers directory
UPX packed file
Executes dropped EXE
Deletes itself
Enumerates connected drives
Drops file in Windows directory
Unsigned PE
Suspicious behavior: LoadsDriver
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Runs ping.exe
Suspicious use of AdjustPrivilegeToken
Modifies data under HKEY_USERS
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-08-28 11:08
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
2023-08-28 11:08
Reported
2023-08-28 11:10
Platform
win7-20230712-en
Max time kernel
142s
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 |
| 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 |
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 |
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 |
| 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
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\H: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\Q: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\X: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\I: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\R: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\S: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\Z: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\B: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\E: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\J: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\L: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\O: | 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 |
| 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) | \??\Y: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\G: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\K: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\M: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\N: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\P: | 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\7a27dc2baf775a5e5c3fcd21dbf30708a9af444246caac78bd863ad1a8400357.exe | N/A |
| File opened for modification | C:\Windows\Aqiyq.exe | C:\Users\Admin\AppData\Local\Temp\7a27dc2baf775a5e5c3fcd21dbf30708a9af444246caac78bd863ad1a8400357.exe | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| 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 |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie | C:\Windows\Aqiyq.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum | 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\Connections | 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 |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings | 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\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 |
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\7a27dc2baf775a5e5c3fcd21dbf30708a9af444246caac78bd863ad1a8400357.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 |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\7a27dc2baf775a5e5c3fcd21dbf30708a9af444246caac78bd863ad1a8400357.exe
"C:\Users\Admin\AppData\Local\Temp\7a27dc2baf775a5e5c3fcd21dbf30708a9af444246caac78bd863ad1a8400357.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\7A27DC~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 | 115.231.218.18:22154 | aaaa1688.e1.luyouxia.net | tcp |
Files
memory/2240-0-0x0000000000400000-0x0000000000591000-memory.dmp
memory/2240-1-0x0000000010000000-0x00000000101B0000-memory.dmp
C:\Windows\Aqiyq.exe
| MD5 | d793918f5dd516e211be5e6a14fdb607 |
| SHA1 | 00e9f5c14895bc5d8dad8eabb5d39da6c425006a |
| SHA256 | 7a27dc2baf775a5e5c3fcd21dbf30708a9af444246caac78bd863ad1a8400357 |
| SHA512 | 58f587433ce5f9271c49eee3de25efd7a52e76a01d99f535deabeef4697ba4715b6da561d9084c125e5076193c438cb8ba417a6997e7d5c63891079276611f8e |
memory/2288-11-0x0000000000400000-0x0000000000591000-memory.dmp
C:\Windows\Aqiyq.exe
| MD5 | d793918f5dd516e211be5e6a14fdb607 |
| SHA1 | 00e9f5c14895bc5d8dad8eabb5d39da6c425006a |
| SHA256 | 7a27dc2baf775a5e5c3fcd21dbf30708a9af444246caac78bd863ad1a8400357 |
| SHA512 | 58f587433ce5f9271c49eee3de25efd7a52e76a01d99f535deabeef4697ba4715b6da561d9084c125e5076193c438cb8ba417a6997e7d5c63891079276611f8e |
C:\Windows\Aqiyq.exe
| MD5 | d793918f5dd516e211be5e6a14fdb607 |
| SHA1 | 00e9f5c14895bc5d8dad8eabb5d39da6c425006a |
| SHA256 | 7a27dc2baf775a5e5c3fcd21dbf30708a9af444246caac78bd863ad1a8400357 |
| SHA512 | 58f587433ce5f9271c49eee3de25efd7a52e76a01d99f535deabeef4697ba4715b6da561d9084c125e5076193c438cb8ba417a6997e7d5c63891079276611f8e |
memory/2288-26-0x0000000000400000-0x0000000000591000-memory.dmp
memory/2896-24-0x0000000000400000-0x0000000000591000-memory.dmp
memory/2240-22-0x0000000000400000-0x0000000000591000-memory.dmp
memory/2896-44-0x0000000000400000-0x0000000000591000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-08-28 11:08
Reported
2023-08-28 11:10
Platform
win10v2004-20230703-en
Max time kernel
143s
Max time network
156s
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 |
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 |
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 |
| 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
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\I: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\K: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\U: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\X: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\G: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\H: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\P: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\M: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\O: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\Q: | 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) | \??\E: | C:\Windows\Aqiyq.exe | N/A |
| 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) | \??\R: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\T: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\W: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\Y: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\Z: | C:\Windows\Aqiyq.exe | N/A |
| File opened (read-only) | \??\B: | 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\7a27dc2baf775a5e5c3fcd21dbf30708a9af444246caac78bd863ad1a8400357.exe | N/A |
| File opened for modification | C:\Windows\Aqiyq.exe | C:\Users\Admin\AppData\Local\Temp\7a27dc2baf775a5e5c3fcd21dbf30708a9af444246caac78bd863ad1a8400357.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\7a27dc2baf775a5e5c3fcd21dbf30708a9af444246caac78bd863ad1a8400357.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\7a27dc2baf775a5e5c3fcd21dbf30708a9af444246caac78bd863ad1a8400357.exe
"C:\Users\Admin\AppData\Local\Temp\7a27dc2baf775a5e5c3fcd21dbf30708a9af444246caac78bd863ad1a8400357.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\7A27DC~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 | 158.240.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | aaaa1688.e1.luyouxia.net | udp |
| CN | 115.231.218.18:22154 | aaaa1688.e1.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.218.231.115.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.136.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 146.78.124.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 210.143.182.52.in-addr.arpa | udp |
Files
memory/536-0-0x0000000000400000-0x0000000000591000-memory.dmp
memory/536-1-0x0000000010000000-0x00000000101B0000-memory.dmp
C:\Windows\Aqiyq.exe
| MD5 | d793918f5dd516e211be5e6a14fdb607 |
| SHA1 | 00e9f5c14895bc5d8dad8eabb5d39da6c425006a |
| SHA256 | 7a27dc2baf775a5e5c3fcd21dbf30708a9af444246caac78bd863ad1a8400357 |
| SHA512 | 58f587433ce5f9271c49eee3de25efd7a52e76a01d99f535deabeef4697ba4715b6da561d9084c125e5076193c438cb8ba417a6997e7d5c63891079276611f8e |
C:\Windows\Aqiyq.exe
| MD5 | d793918f5dd516e211be5e6a14fdb607 |
| SHA1 | 00e9f5c14895bc5d8dad8eabb5d39da6c425006a |
| SHA256 | 7a27dc2baf775a5e5c3fcd21dbf30708a9af444246caac78bd863ad1a8400357 |
| SHA512 | 58f587433ce5f9271c49eee3de25efd7a52e76a01d99f535deabeef4697ba4715b6da561d9084c125e5076193c438cb8ba417a6997e7d5c63891079276611f8e |
memory/2288-12-0x0000000010000000-0x00000000101B0000-memory.dmp
memory/536-19-0x0000000000400000-0x0000000000591000-memory.dmp
C:\Windows\Aqiyq.exe
| MD5 | d793918f5dd516e211be5e6a14fdb607 |
| SHA1 | 00e9f5c14895bc5d8dad8eabb5d39da6c425006a |
| SHA256 | 7a27dc2baf775a5e5c3fcd21dbf30708a9af444246caac78bd863ad1a8400357 |
| SHA512 | 58f587433ce5f9271c49eee3de25efd7a52e76a01d99f535deabeef4697ba4715b6da561d9084c125e5076193c438cb8ba417a6997e7d5c63891079276611f8e |
memory/2288-22-0x0000000000400000-0x0000000000591000-memory.dmp
memory/4660-21-0x0000000000400000-0x0000000000591000-memory.dmp
memory/4660-23-0x0000000010000000-0x00000000101B0000-memory.dmp
memory/4660-40-0x0000000000400000-0x0000000000591000-memory.dmp