Analysis Overview
SHA256
082e74a728c3478f56f7043bf88a516c6bbbd98bf7458dc2ea446a392cebfe42
Threat Level: Known bad
The file OrcusSetup.exe was found to be: Known bad.
Malicious Activity Summary
Orcus
Orcus family
Checks computer location settings
Executes dropped EXE
Drops desktop.ini file(s)
Drops file in Windows directory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious use of FindShellTrayWindow
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-15 01:29
Signatures
Orcus family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-01-15 01:29
Reported
2025-01-15 01:32
Platform
win10ltsc2021-20250113-en
Max time kernel
147s
Max time network
156s
Command Line
Signatures
Orcus
Orcus family
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3454535599-122122096-1812617400-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\OrcusSetup.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Drops desktop.ini file(s)
| Description | Indicator | Process | Target |
| File created | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\OrcusSetup.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\OrcusSetup.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\assembly | C:\Users\Admin\AppData\Local\Temp\OrcusSetup.exe | N/A |
| File created | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\OrcusSetup.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\OrcusSetup.exe | N/A |
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\OrcusSetup.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3872 wrote to memory of 652 | N/A | C:\Users\Admin\AppData\Local\Temp\OrcusSetup.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 3872 wrote to memory of 652 | N/A | C:\Users\Admin\AppData\Local\Temp\OrcusSetup.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 3872 wrote to memory of 652 | N/A | C:\Users\Admin\AppData\Local\Temp\OrcusSetup.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\OrcusSetup.exe
"C:\Users\Admin\AppData\Local\Temp\OrcusSetup.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 167.173.78.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | hi-tin.gl.at.ply.gg | udp |
| US | 147.185.221.25:14413 | hi-tin.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 25.221.185.147.in-addr.arpa | udp |
| US | 147.185.221.25:14413 | hi-tin.gl.at.ply.gg | tcp |
| US | 147.185.221.25:14413 | hi-tin.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 212.20.149.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | fd.api.iris.microsoft.com | udp |
| FR | 20.199.58.43:443 | fd.api.iris.microsoft.com | tcp |
| US | 8.8.8.8:53 | 133.130.81.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 147.185.221.25:14413 | hi-tin.gl.at.ply.gg | tcp |
| US | 147.185.221.25:14413 | hi-tin.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 147.185.221.25:14413 | hi-tin.gl.at.ply.gg | tcp |
| US | 147.185.221.25:14413 | hi-tin.gl.at.ply.gg | tcp |
| US | 147.185.221.25:14413 | hi-tin.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 147.185.221.25:14413 | hi-tin.gl.at.ply.gg | tcp |
| US | 147.185.221.25:14413 | hi-tin.gl.at.ply.gg | tcp |
| US | 147.185.221.25:14413 | hi-tin.gl.at.ply.gg | tcp |
| US | 147.185.221.25:14413 | hi-tin.gl.at.ply.gg | tcp |
Files
memory/3872-0-0x0000000075432000-0x0000000075433000-memory.dmp
memory/3872-1-0x0000000075430000-0x00000000759E1000-memory.dmp
memory/3872-2-0x0000000075430000-0x00000000759E1000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 882cbc9308462eb43403dad38cfc8694 |
| SHA1 | a313d2d7099978fb05d4a1c96e7a8eff59bba1df |
| SHA256 | 082e74a728c3478f56f7043bf88a516c6bbbd98bf7458dc2ea446a392cebfe42 |
| SHA512 | d01076ba6489ef090efa58524da483deca12a481c2dbd4531cd07656f44748c8980c05fac09f8d5cf49a625234519b53f3407f4f70ea95910664623e37ac4b84 |
memory/652-8-0x0000000075430000-0x00000000759E1000-memory.dmp
memory/652-9-0x0000000075430000-0x00000000759E1000-memory.dmp
memory/3872-7-0x0000000075430000-0x00000000759E1000-memory.dmp
memory/652-10-0x0000000075430000-0x00000000759E1000-memory.dmp
memory/652-11-0x0000000075430000-0x00000000759E1000-memory.dmp
memory/652-12-0x0000000075430000-0x00000000759E1000-memory.dmp
memory/652-13-0x0000000075430000-0x00000000759E1000-memory.dmp