Analysis Overview
SHA256
4c7a86733a4ac849eec1b49179f64b81ed852c47be714d91c3b00d64b79e1399
Threat Level: Known bad
The file 4c7a86733a4ac849eec1b49179f64b81ed852c47be714d91c3b00d64b79e1399N.exe was found to be: Known bad.
Malicious Activity Summary
Quasar payload
Quasar family
Quasar RAT
Downloads MZ/PE file
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Suspicious use of SetThreadContext
Unsigned PE
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-08 07:11
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-01-08 07:11
Reported
2025-01-08 07:13
Platform
win7-20241010-en
Max time kernel
117s
Max time network
123s
Command Line
Signatures
Quasar RAT
Quasar family
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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Downloads MZ/PE file
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4c7a86733a4ac849eec1b49179f64b81ed852c47be714d91c3b00d64b79e1399N.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 844 set thread context of 2928 | N/A | C:\Users\Admin\AppData\Local\Temp\c.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\4c7a86733a4ac849eec1b49179f64b81ed852c47be714d91c3b00d64b79e1399N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\c.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\4c7a86733a4ac849eec1b49179f64b81ed852c47be714d91c3b00d64b79e1399N.exe
"C:\Users\Admin\AppData\Local\Temp\4c7a86733a4ac849eec1b49179f64b81ed852c47be714d91c3b00d64b79e1399N.exe"
C:\Users\Admin\AppData\Local\Temp\c.exe
"C:\Users\Admin\AppData\Local\Temp\c.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
Network
| Country | Destination | Domain | Proto |
| DE | 31.220.92.125:8088 | 31.220.92.125 | tcp |
| US | 8.8.8.8:53 | win32updatess.DUCKDNS.ORG | udp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| US | 8.8.8.8:53 | win32updatess.DUCKDNS.ORG | udp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\c.exe
| MD5 | 85f734c7ff103995e9ffa75bf661ef4f |
| SHA1 | 577f8c3cf3c1c78c7f227508d764c6f9c41d4e5c |
| SHA256 | 12ec384e29c8c0f15c05583dd84dbe719c454d70cafca9ee3de8dd2fa51f05ee |
| SHA512 | c273bfbd0ffda0625ba8c2b91af6a105cc734ccd544f20f7d43f75328c34585f643bb2c9158d4107ac3404ad3278107200c984a3694359230b55999a9de026ac |
memory/844-7-0x00000000745EE000-0x00000000745EF000-memory.dmp
memory/844-8-0x0000000000A00000-0x0000000000D5A000-memory.dmp
memory/844-9-0x00000000003B0000-0x00000000003B6000-memory.dmp
memory/844-10-0x00000000745E0000-0x0000000074CCE000-memory.dmp
memory/844-11-0x00000000062A0000-0x00000000065D4000-memory.dmp
memory/844-12-0x0000000000400000-0x0000000000406000-memory.dmp
memory/844-13-0x00000000745EE000-0x00000000745EF000-memory.dmp
memory/844-14-0x00000000745E0000-0x0000000074CCE000-memory.dmp
memory/844-15-0x0000000007070000-0x0000000007396000-memory.dmp
memory/2928-16-0x0000000000400000-0x0000000000724000-memory.dmp
memory/2928-21-0x0000000000400000-0x0000000000724000-memory.dmp
memory/2928-27-0x0000000000400000-0x0000000000724000-memory.dmp
memory/2928-29-0x0000000000400000-0x0000000000724000-memory.dmp
memory/2928-25-0x0000000000400000-0x0000000000724000-memory.dmp
memory/2928-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/844-30-0x00000000745E0000-0x0000000074CCE000-memory.dmp
memory/2928-19-0x0000000000400000-0x0000000000724000-memory.dmp
memory/2928-18-0x0000000000400000-0x0000000000724000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-08 07:11
Reported
2025-01-08 07:13
Platform
win10v2004-20241007-en
Max time kernel
94s
Max time network
114s
Command Line
Signatures
Quasar RAT
Quasar family
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Downloads MZ/PE file
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\4c7a86733a4ac849eec1b49179f64b81ed852c47be714d91c3b00d64b79e1399N.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2300 set thread context of 2904 | N/A | C:\Users\Admin\AppData\Local\Temp\c.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\4c7a86733a4ac849eec1b49179f64b81ed852c47be714d91c3b00d64b79e1399N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\c.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\c.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\4c7a86733a4ac849eec1b49179f64b81ed852c47be714d91c3b00d64b79e1399N.exe
"C:\Users\Admin\AppData\Local\Temp\4c7a86733a4ac849eec1b49179f64b81ed852c47be714d91c3b00d64b79e1399N.exe"
C:\Users\Admin\AppData\Local\Temp\c.exe
"C:\Users\Admin\AppData\Local\Temp\c.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
Network
| Country | Destination | Domain | Proto |
| DE | 31.220.92.125:8088 | 31.220.92.125 | tcp |
| US | 8.8.8.8:53 | 125.92.220.31.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 60.153.16.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | win32updatess.DUCKDNS.ORG | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.49.80.91.in-addr.arpa | udp |
| DE | 185.249.198.173:2 | win32updatess.DUCKDNS.ORG | tcp |
| US | 8.8.8.8:53 | ipwho.is | udp |
| DE | 195.201.57.90:443 | ipwho.is | tcp |
| US | 8.8.8.8:53 | 173.198.249.185.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 90.57.201.195.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\c.exe
| MD5 | 85f734c7ff103995e9ffa75bf661ef4f |
| SHA1 | 577f8c3cf3c1c78c7f227508d764c6f9c41d4e5c |
| SHA256 | 12ec384e29c8c0f15c05583dd84dbe719c454d70cafca9ee3de8dd2fa51f05ee |
| SHA512 | c273bfbd0ffda0625ba8c2b91af6a105cc734ccd544f20f7d43f75328c34585f643bb2c9158d4107ac3404ad3278107200c984a3694359230b55999a9de026ac |
memory/2300-11-0x0000000074B4E000-0x0000000074B4F000-memory.dmp
memory/2300-12-0x0000000000360000-0x00000000006BA000-memory.dmp
memory/2300-13-0x0000000002BA0000-0x0000000002BA6000-memory.dmp
memory/2300-14-0x0000000074B40000-0x00000000752F0000-memory.dmp
memory/2300-15-0x000000000CBC0000-0x000000000CEF4000-memory.dmp
memory/2300-16-0x000000000D4A0000-0x000000000DA44000-memory.dmp
memory/2300-17-0x0000000006380000-0x0000000006412000-memory.dmp
memory/2300-18-0x00000000029B0000-0x00000000029B6000-memory.dmp
memory/2300-19-0x0000000006770000-0x000000000677A000-memory.dmp
memory/2300-20-0x0000000006810000-0x0000000006886000-memory.dmp
memory/2300-21-0x0000000074B4E000-0x0000000074B4F000-memory.dmp
memory/2300-22-0x0000000074B40000-0x00000000752F0000-memory.dmp
memory/2300-23-0x0000000006990000-0x0000000006CB6000-memory.dmp
memory/2300-24-0x0000000005180000-0x000000000519E000-memory.dmp
memory/2904-25-0x0000000000400000-0x0000000000724000-memory.dmp
memory/2300-27-0x0000000074B40000-0x00000000752F0000-memory.dmp
memory/2904-28-0x0000000074B40000-0x00000000752F0000-memory.dmp
memory/2904-29-0x0000000074B40000-0x00000000752F0000-memory.dmp
memory/2904-30-0x00000000067C0000-0x0000000006DD8000-memory.dmp
memory/2904-31-0x0000000006220000-0x0000000006270000-memory.dmp
memory/2904-32-0x0000000006490000-0x0000000006542000-memory.dmp
memory/2904-35-0x0000000007960000-0x0000000007972000-memory.dmp
memory/2904-36-0x00000000079C0000-0x00000000079FC000-memory.dmp
memory/2904-37-0x0000000007A70000-0x0000000007AD6000-memory.dmp
memory/2904-38-0x0000000074B40000-0x00000000752F0000-memory.dmp
memory/2904-39-0x0000000074B40000-0x00000000752F0000-memory.dmp