Analysis Overview
SHA256
37157625bef24977ce0cf11e74b3d5c8412a0638b541e51cc0944b5127b2469d
Threat Level: Known bad
The file dd256157a85a12405cbdf789af1b2442 was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Adds Run key to start application
Suspicious use of SetThreadContext
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-24 15:23
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-24 15:23
Reported
2024-05-24 15:26
Platform
win7-20240221-en
Max time kernel
119s
Max time network
182s
Command Line
Signatures
AsyncRat
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\SmokerLtd = "C:\\Users\\Admin\\Documents\\Umunu\\uOperna.exe" | C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1928 set thread context of 2660 | N/A | C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.exe
"C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | krakenstudio061Q.casacam.net | udp |
| CO | 177.255.88.222:8002 | krakenstudio061Q.casacam.net | tcp |
Files
memory/1928-1-0x000000000040C000-0x0000000000425000-memory.dmp
memory/1928-0-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/1928-4-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/1928-3-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/1928-2-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/2660-6-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
memory/2660-7-0x0000000000080000-0x0000000000092000-memory.dmp
memory/2660-5-0x0000000000080000-0x0000000000092000-memory.dmp
memory/2660-9-0x0000000000080000-0x0000000000092000-memory.dmp
memory/2660-11-0x0000000000080000-0x0000000000092000-memory.dmp
memory/1928-12-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/2660-13-0x0000000073E0E000-0x0000000073E0F000-memory.dmp
memory/2660-14-0x0000000073E00000-0x00000000744EE000-memory.dmp
memory/2660-32-0x0000000073E0E000-0x0000000073E0F000-memory.dmp
memory/2660-33-0x0000000073E00000-0x00000000744EE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-24 15:23
Reported
2024-05-24 15:26
Platform
win10v2004-20240508-en
Max time kernel
133s
Max time network
180s
Command Line
Signatures
AsyncRat
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SmokerLtd = "C:\\Users\\Admin\\Documents\\Umunu\\uOperna.exe준" | C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3588 set thread context of 4456 | N/A | C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3588 wrote to memory of 4456 | N/A | C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe |
| PID 3588 wrote to memory of 4456 | N/A | C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe |
| PID 3588 wrote to memory of 4456 | N/A | C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe |
| PID 3588 wrote to memory of 4456 | N/A | C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe |
| PID 3588 wrote to memory of 4456 | N/A | C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.exe
"C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| BE | 2.17.196.122:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 249.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 122.196.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | krakenstudio061Q.casacam.net | udp |
| CO | 177.255.88.222:8002 | krakenstudio061Q.casacam.net | tcp |
| US | 8.8.8.8:53 | 222.88.255.177.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 146.211.222.173.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| 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 |
Files
memory/3588-0-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/3588-1-0x000000000040C000-0x0000000000425000-memory.dmp
memory/3588-2-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/4456-3-0x0000000000600000-0x0000000000612000-memory.dmp
memory/3588-4-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/4456-5-0x00000000740AE000-0x00000000740AF000-memory.dmp
memory/4456-6-0x00000000740A0000-0x0000000074850000-memory.dmp
memory/4456-9-0x0000000005C00000-0x0000000005C9C000-memory.dmp
memory/4456-10-0x0000000006250000-0x00000000067F4000-memory.dmp
memory/4456-11-0x0000000005CA0000-0x0000000005D06000-memory.dmp
memory/4456-12-0x00000000740A0000-0x0000000074850000-memory.dmp
memory/4456-13-0x00000000740AE000-0x00000000740AF000-memory.dmp
memory/4456-14-0x00000000740A0000-0x0000000074850000-memory.dmp
memory/4456-15-0x00000000740A0000-0x0000000074850000-memory.dmp