Analysis Overview
SHA256
c274b2e340898ac8c990b24d0ca9d4e0668108397b0bf1a2f6c89545e78b911c
Threat Level: Known bad
The file c274b2e340898ac8c990b24d0ca9d4e0668108397b0bf1a2f6c89545e78b911c was found to be: Known bad.
Malicious Activity Summary
Gh0st RAT payload
Detect PurpleFox Rootkit
Gh0strat
PurpleFox
Drops file in Drivers directory
Sets service image path in registry
Deletes itself
Executes dropped EXE
Loads dropped DLL
Enumerates connected drives
Drops file in System32 directory
Unsigned PE
Runs ping.exe
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Checks processor information in registry
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-05 17:29
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-05 17:29
Reported
2024-06-05 17:32
Platform
win7-20240419-en
Max time kernel
121s
Max time network
154s
Command Line
Signatures
Detect PurpleFox Rootkit
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Gh0st RAT payload
| Description | Indicator | Process | Target |
| 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\COM Surrogate | 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\COM Surrogate | 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\COM Surrogate | N/A |
| N/A | N/A | C:\Windows\SysWOW64\COM Surrogate | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\COM Surrogate | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\G: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\M: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\U: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\Z: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\L: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\P: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\B: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\H: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\J: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\K: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\T: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\W: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\X: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\E: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\I: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\O: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\Q: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\Y: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\N: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\R: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\S: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\V: | C:\Windows\SysWOW64\COM Surrogate | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\COM Surrogate | C:\Users\Admin\AppData\Local\Temp\c274b2e340898ac8c990b24d0ca9d4e0668108397b0bf1a2f6c89545e78b911c.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\COM Surrogate | C:\Users\Admin\AppData\Local\Temp\c274b2e340898ac8c990b24d0ca9d4e0668108397b0bf1a2f6c89545e78b911c.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\SysWOW64\COM Surrogate | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Set value (data) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Set value (data) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum\Version = "7" | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections | C:\Windows\SysWOW64\COM Surrogate | 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\COM Surrogate | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\c274b2e340898ac8c990b24d0ca9d4e0668108397b0bf1a2f6c89545e78b911c.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\COM Surrogate | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\c274b2e340898ac8c990b24d0ca9d4e0668108397b0bf1a2f6c89545e78b911c.exe
"C:\Users\Admin\AppData\Local\Temp\c274b2e340898ac8c990b24d0ca9d4e0668108397b0bf1a2f6c89545e78b911c.exe"
C:\Windows\SysWOW64\COM Surrogate
"C:\Windows\SysWOW64\COM Surrogate" -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\C274B2~1.EXE > nul
C:\Windows\SysWOW64\COM Surrogate
"C:\Windows\SysWOW64\COM Surrogate" -acsi
C:\Windows\SysWOW64\PING.EXE
ping -n 2 127.0.0.1
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | sk.yg.ink | udp |
| HK | 103.147.13.110:443 | sk.yg.ink | tcp |
Files
memory/1860-0-0x0000000010000000-0x000000001019F000-memory.dmp
C:\Windows\SysWOW64\COM Surrogate
| MD5 | 3dd22032bb9f535c6820141b18ff1a85 |
| SHA1 | 850959dce7003d1892f07b50553ae619d764321e |
| SHA256 | c274b2e340898ac8c990b24d0ca9d4e0668108397b0bf1a2f6c89545e78b911c |
| SHA512 | e6578edaffea7d5d2db215ecf81c4f5d7bfc16f3fa79944491bb5b577e15710cb6e21c681b3b16d1455b2bf54d680699d05cc415e47208535a649a72ed392319 |
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-05 17:29
Reported
2024-06-05 17:32
Platform
win10v2004-20240426-en
Max time kernel
120s
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 |
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\COM Surrogate | 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\COM Surrogate | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\COM Surrogate | N/A |
| N/A | N/A | C:\Windows\SysWOW64\COM Surrogate | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\B: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\J: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\O: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\X: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\V: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\H: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\K: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\L: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\M: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\P: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\R: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\U: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\W: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\E: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\G: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\N: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\Q: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\T: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\Y: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\I: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\S: | C:\Windows\SysWOW64\COM Surrogate | N/A |
| File opened (read-only) | \??\Z: | C:\Windows\SysWOW64\COM Surrogate | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\COM Surrogate | C:\Users\Admin\AppData\Local\Temp\c274b2e340898ac8c990b24d0ca9d4e0668108397b0bf1a2f6c89545e78b911c.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\COM Surrogate | C:\Users\Admin\AppData\Local\Temp\c274b2e340898ac8c990b24d0ca9d4e0668108397b0bf1a2f6c89545e78b911c.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\SysWOW64\COM Surrogate | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7" | C:\Windows\SysWOW64\COM Surrogate | 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\COM Surrogate | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\c274b2e340898ac8c990b24d0ca9d4e0668108397b0bf1a2f6c89545e78b911c.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\COM Surrogate | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\COM Surrogate | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\c274b2e340898ac8c990b24d0ca9d4e0668108397b0bf1a2f6c89545e78b911c.exe
"C:\Users\Admin\AppData\Local\Temp\c274b2e340898ac8c990b24d0ca9d4e0668108397b0bf1a2f6c89545e78b911c.exe"
C:\Windows\SysWOW64\COM Surrogate
"C:\Windows\SysWOW64\COM Surrogate" -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\C274B2~1.EXE > nul
C:\Windows\SysWOW64\COM Surrogate
"C:\Windows\SysWOW64\COM Surrogate" -acsi
C:\Windows\SysWOW64\PING.EXE
ping -n 2 127.0.0.1
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | sk.yg.ink | udp |
| HK | 103.147.13.110:443 | sk.yg.ink | tcp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 110.13.147.103.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 129.83.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 98.83.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
Files
memory/1432-0-0x0000000010000000-0x000000001019F000-memory.dmp
C:\Windows\SysWOW64\COM Surrogate
| MD5 | 3dd22032bb9f535c6820141b18ff1a85 |
| SHA1 | 850959dce7003d1892f07b50553ae619d764321e |
| SHA256 | c274b2e340898ac8c990b24d0ca9d4e0668108397b0bf1a2f6c89545e78b911c |
| SHA512 | e6578edaffea7d5d2db215ecf81c4f5d7bfc16f3fa79944491bb5b577e15710cb6e21c681b3b16d1455b2bf54d680699d05cc415e47208535a649a72ed392319 |
memory/4272-10-0x0000000010000000-0x000000001019F000-memory.dmp
memory/3724-17-0x0000000010000000-0x000000001019F000-memory.dmp