Analysis Overview
SHA256
f5dccd02d415f96bbde7cdcd9afa5376911166e795486e772a3ffa124fe45302
Threat Level: Known bad
The file Seroxen.exe was found to be: Known bad.
Malicious Activity Summary
Quasar RAT
Quasar family
Quasar payload
Executes dropped EXE
Drops file in System32 directory
Unsigned PE
Suspicious use of WriteProcessMemory
Scheduled Task/Job: Scheduled Task
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Uses Task Scheduler COM API
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-18 22:18
Signatures
Quasar family
Quasar payload
| 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 |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-18 22:18
Reported
2024-08-18 22:20
Platform
win7-20240704-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
Quasar RAT
Quasar 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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\Windows\Windows Host Process.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\system32\Windows\Windows Host Process.exe | C:\Users\Admin\AppData\Local\Temp\Seroxen.exe | N/A |
| File opened for modification | C:\Windows\system32\Windows\Windows Host Process.exe | C:\Users\Admin\AppData\Local\Temp\Seroxen.exe | N/A |
| File opened for modification | C:\Windows\system32\Windows | C:\Users\Admin\AppData\Local\Temp\Seroxen.exe | N/A |
| File opened for modification | C:\Windows\system32\Windows\Windows Host Process.exe | C:\Windows\system32\Windows\Windows Host Process.exe | N/A |
| File opened for modification | C:\Windows\system32\Windows | C:\Windows\system32\Windows\Windows Host Process.exe | N/A |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Seroxen.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\Windows\Windows Host Process.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\Windows\Windows Host Process.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\Seroxen.exe
"C:\Users\Admin\AppData\Local\Temp\Seroxen.exe"
C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "Windows Host Process" /sc ONLOGON /tr "C:\Windows\system32\Windows\Windows Host Process.exe" /rl HIGHEST /f
C:\Windows\system32\Windows\Windows Host Process.exe
"C:\Windows\system32\Windows\Windows Host Process.exe"
C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "Windows Host Process" /sc ONLOGON /tr "C:\Windows\system32\Windows\Windows Host Process.exe" /rl HIGHEST /f
Network
| Country | Destination | Domain | Proto |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp |
Files
memory/2200-0-0x000007FEF5F53000-0x000007FEF5F54000-memory.dmp
memory/2200-1-0x0000000000D30000-0x000000000105C000-memory.dmp
memory/2200-2-0x000007FEF5F50000-0x000007FEF693C000-memory.dmp
C:\Windows\system32\Windows\Windows Host Process.exe
| MD5 | ecd1d786fb4e8d2fdd9fde6d5ad3f5d3 |
| SHA1 | bea4d57cb8cc632b0074bfd1ef3739ee11399df1 |
| SHA256 | f5dccd02d415f96bbde7cdcd9afa5376911166e795486e772a3ffa124fe45302 |
| SHA512 | 123086110b392ab14ca99b91b246266b93b21e0036cde9919649edcd83751cf163688a7795a781c6c3190cc3dcdc272ff7b3b9bc6c617cbac0cbc18908a46f1e |
memory/672-9-0x000007FEF5F50000-0x000007FEF693C000-memory.dmp
memory/672-10-0x00000000000F0000-0x000000000041C000-memory.dmp
memory/2200-8-0x000007FEF5F50000-0x000007FEF693C000-memory.dmp
memory/672-11-0x000007FEF5F50000-0x000007FEF693C000-memory.dmp
memory/672-12-0x000007FEF5F50000-0x000007FEF693C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-18 22:18
Reported
2024-08-18 22:25
Platform
win10v2004-20240802-en
Max time kernel
444s
Max time network
448s
Command Line
Signatures
Quasar RAT
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\Windows\Windows Host Process.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\system32\Windows | C:\Users\Admin\AppData\Local\Temp\Seroxen.exe | N/A |
| File opened for modification | C:\Windows\system32\Windows\Windows Host Process.exe | C:\Windows\system32\Windows\Windows Host Process.exe | N/A |
| File opened for modification | C:\Windows\system32\Windows | C:\Windows\system32\Windows\Windows Host Process.exe | N/A |
| File created | C:\Windows\system32\Windows\Windows Host Process.exe | C:\Users\Admin\AppData\Local\Temp\Seroxen.exe | N/A |
| File opened for modification | C:\Windows\system32\Windows\Windows Host Process.exe | C:\Users\Admin\AppData\Local\Temp\Seroxen.exe | N/A |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SYSTEM32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SYSTEM32\schtasks.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Seroxen.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\Windows\Windows Host Process.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\Windows\Windows Host Process.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2208 wrote to memory of 4384 | N/A | C:\Users\Admin\AppData\Local\Temp\Seroxen.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 2208 wrote to memory of 4384 | N/A | C:\Users\Admin\AppData\Local\Temp\Seroxen.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 2208 wrote to memory of 2636 | N/A | C:\Users\Admin\AppData\Local\Temp\Seroxen.exe | C:\Windows\system32\Windows\Windows Host Process.exe |
| PID 2208 wrote to memory of 2636 | N/A | C:\Users\Admin\AppData\Local\Temp\Seroxen.exe | C:\Windows\system32\Windows\Windows Host Process.exe |
| PID 2636 wrote to memory of 3104 | N/A | C:\Windows\system32\Windows\Windows Host Process.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 2636 wrote to memory of 3104 | N/A | C:\Windows\system32\Windows\Windows Host Process.exe | C:\Windows\SYSTEM32\schtasks.exe |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\Seroxen.exe
"C:\Users\Admin\AppData\Local\Temp\Seroxen.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Windows Host Process" /sc ONLOGON /tr "C:\Windows\system32\Windows\Windows Host Process.exe" /rl HIGHEST /f
C:\Windows\system32\Windows\Windows Host Process.exe
"C:\Windows\system32\Windows\Windows Host Process.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Windows Host Process" /sc ONLOGON /tr "C:\Windows\system32\Windows\Windows Host Process.exe" /rl HIGHEST /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 147.185.221.22:10340 | tcp | |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 147.185.221.22:10340 | tcp | |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| NL | 52.178.17.2:443 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
| US | 147.185.221.22:10340 | tcp | |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 8.8.8.8:53 | 31.73.42.20.in-addr.arpa | udp |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp |
Files
memory/2208-0-0x00007FFC5D4F3000-0x00007FFC5D4F5000-memory.dmp
memory/2208-1-0x0000000000EB0000-0x00000000011DC000-memory.dmp
memory/2208-2-0x00007FFC5D4F0000-0x00007FFC5DFB1000-memory.dmp
C:\Windows\system32\Windows\Windows Host Process.exe
| MD5 | ecd1d786fb4e8d2fdd9fde6d5ad3f5d3 |
| SHA1 | bea4d57cb8cc632b0074bfd1ef3739ee11399df1 |
| SHA256 | f5dccd02d415f96bbde7cdcd9afa5376911166e795486e772a3ffa124fe45302 |
| SHA512 | 123086110b392ab14ca99b91b246266b93b21e0036cde9919649edcd83751cf163688a7795a781c6c3190cc3dcdc272ff7b3b9bc6c617cbac0cbc18908a46f1e |
memory/2208-10-0x00007FFC5D4F0000-0x00007FFC5DFB1000-memory.dmp
memory/2636-9-0x00007FFC5D4F0000-0x00007FFC5DFB1000-memory.dmp
memory/2636-11-0x00007FFC5D4F0000-0x00007FFC5DFB1000-memory.dmp
memory/2636-12-0x000000001B8D0000-0x000000001B920000-memory.dmp
memory/2636-13-0x000000001B9E0000-0x000000001BA92000-memory.dmp
memory/2636-14-0x00007FFC5D4F0000-0x00007FFC5DFB1000-memory.dmp