Analysis Overview
SHA256
e7e96cda8a476844be3a605f7b616cf98ca3f41b7f607a2a7b98da5d403014ee
Threat Level: Known bad
The file e7e96cda8a476844be3a605f7b616cf98ca3f41b7f607a2a7b98da5d403014ee was found to be: Known bad.
Malicious Activity Summary
PurpleFox
Gh0st RAT payload
Gh0strat
Detect PurpleFox Rootkit
Drops file in Drivers directory
Sets service image path in registry
Loads dropped DLL
Deletes itself
Executes dropped EXE
Drops file in System32 directory
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Runs ping.exe
Suspicious behavior: LoadsDriver
Modifies data under HKEY_USERS
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-24 21:33
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-24 21:33
Reported
2024-05-24 21:36
Platform
win7-20240419-en
Max time kernel
146s
Max time network
150s
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\sainbox.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\sainbox.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\sainbox.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\sainbox.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\sainbox.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\sainbox.exe | C:\Users\Admin\AppData\Local\Temp\e7e96cda8a476844be3a605f7b616cf98ca3f41b7f607a2a7b98da5d403014ee.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\sainbox.exe | C:\Users\Admin\AppData\Local\Temp\e7e96cda8a476844be3a605f7b616cf98ca3f41b7f607a2a7b98da5d403014ee.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\History\CachePrefix = "Visited:" | C:\Windows\SysWOW64\sainbox.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings | C:\Windows\SysWOW64\sainbox.exe | N/A |
| Set value (str) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix | C:\Windows\SysWOW64\sainbox.exe | N/A |
| Set value (str) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" | C:\Windows\SysWOW64\sainbox.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\sainbox.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\e7e96cda8a476844be3a605f7b616cf98ca3f41b7f607a2a7b98da5d403014ee.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\SysWOW64\sainbox.exe | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\sainbox.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\sainbox.exe | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\sainbox.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\sainbox.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e7e96cda8a476844be3a605f7b616cf98ca3f41b7f607a2a7b98da5d403014ee.exe
"C:\Users\Admin\AppData\Local\Temp\e7e96cda8a476844be3a605f7b616cf98ca3f41b7f607a2a7b98da5d403014ee.exe"
C:\Windows\SysWOW64\sainbox.exe
C:\Windows\SysWOW64\sainbox.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\E7E96C~1.EXE > nul
C:\Windows\SysWOW64\sainbox.exe
C:\Windows\SysWOW64\sainbox.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 | 12asasa.e3.luyouxia.net | udp |
| CN | 123.99.198.130:12079 | 12asasa.e3.luyouxia.net | tcp |
| CN | 123.99.198.130:12079 | 12asasa.e3.luyouxia.net | tcp |
| CN | 123.99.198.130:12079 | 12asasa.e3.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 12asasa.e3.luyouxia.net | udp |
| CN | 115.231.218.42:12079 | 12asasa.e3.luyouxia.net | tcp |
| CN | 115.231.218.42:12079 | 12asasa.e3.luyouxia.net | tcp |
| CN | 115.231.218.42:12079 | 12asasa.e3.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 12asasa.e3.luyouxia.net | udp |
| CN | 124.248.69.29:12079 | 12asasa.e3.luyouxia.net | tcp |
Files
memory/1028-0-0x0000000010000000-0x000000001019F000-memory.dmp
C:\Windows\SysWOW64\sainbox.exe
| MD5 | 26ef3ab737b2c1ba492ccdb6860167c5 |
| SHA1 | c8c6bdd17ffebfceceeedb018e36f053a00ddeef |
| SHA256 | e7e96cda8a476844be3a605f7b616cf98ca3f41b7f607a2a7b98da5d403014ee |
| SHA512 | 51f50842227e54eb7e5b3c6ba8581f15b4c1975186cb0a329f637abe5570a47b1158d8f3c8077f92801108179832a57e1dc3cb7a8d6114099d7540abb8da0452 |
memory/2556-19-0x0000000010000000-0x000000001019F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-24 21:33
Reported
2024-05-24 21:36
Platform
win10v2004-20240426-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 |
| 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\sainbox.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\sainbox.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\sainbox.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\sainbox.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\sainbox.exe | C:\Users\Admin\AppData\Local\Temp\e7e96cda8a476844be3a605f7b616cf98ca3f41b7f607a2a7b98da5d403014ee.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\sainbox.exe | C:\Users\Admin\AppData\Local\Temp\e7e96cda8a476844be3a605f7b616cf98ca3f41b7f607a2a7b98da5d403014ee.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\sainbox.exe | N/A |
| Set value (str) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" | C:\Windows\SysWOW64\sainbox.exe | N/A |
| Set value (str) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" | C:\Windows\SysWOW64\sainbox.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\sainbox.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\e7e96cda8a476844be3a605f7b616cf98ca3f41b7f607a2a7b98da5d403014ee.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\SysWOW64\sainbox.exe | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\sainbox.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\sainbox.exe | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\sainbox.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\sainbox.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e7e96cda8a476844be3a605f7b616cf98ca3f41b7f607a2a7b98da5d403014ee.exe
"C:\Users\Admin\AppData\Local\Temp\e7e96cda8a476844be3a605f7b616cf98ca3f41b7f607a2a7b98da5d403014ee.exe"
C:\Windows\SysWOW64\sainbox.exe
C:\Windows\SysWOW64\sainbox.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\E7E96C~1.EXE > nul
C:\Windows\SysWOW64\sainbox.exe
C:\Windows\SysWOW64\sainbox.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 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 12asasa.e3.luyouxia.net | udp |
| CN | 115.231.218.42:12079 | 12asasa.e3.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| BE | 2.17.107.122:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | 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 |
| BE | 2.17.107.122:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 122.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| CN | 115.231.218.42:12079 | 12asasa.e3.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| CN | 115.231.218.42:12079 | 12asasa.e3.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 91.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 12asasa.e3.luyouxia.net | udp |
| CN | 124.248.69.29:12079 | 12asasa.e3.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
| CN | 124.248.69.29:12079 | 12asasa.e3.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| CN | 124.248.69.29:12079 | 12asasa.e3.luyouxia.net | tcp |
| US | 8.8.8.8:53 | 12asasa.e3.luyouxia.net | udp |
| CN | 115.231.218.42:12079 | 12asasa.e3.luyouxia.net | tcp |
Files
memory/3520-0-0x0000000010000000-0x000000001019F000-memory.dmp
C:\Windows\SysWOW64\sainbox.exe
| MD5 | 26ef3ab737b2c1ba492ccdb6860167c5 |
| SHA1 | c8c6bdd17ffebfceceeedb018e36f053a00ddeef |
| SHA256 | e7e96cda8a476844be3a605f7b616cf98ca3f41b7f607a2a7b98da5d403014ee |
| SHA512 | 51f50842227e54eb7e5b3c6ba8581f15b4c1975186cb0a329f637abe5570a47b1158d8f3c8077f92801108179832a57e1dc3cb7a8d6114099d7540abb8da0452 |
memory/3656-11-0x0000000010000000-0x000000001019F000-memory.dmp
memory/512-18-0x0000000010000000-0x000000001019F000-memory.dmp