Analysis Overview
SHA256
49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4
Threat Level: Known bad
The file 49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4 was found to be: Known bad.
Malicious Activity Summary
Orcus
Orcus family
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Drops desktop.ini file(s)
Drops file in Windows directory
System Location Discovery: System Language Discovery
Unsigned PE
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-20 01:01
Signatures
Orcus family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-20 01:01
Reported
2025-01-20 01:03
Platform
win10v2004-20241007-en
Max time kernel
147s
Max time network
146s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4.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\49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4.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\49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4.exe | N/A |
| File created | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4.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\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4.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 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 3440 wrote to memory of 2680 | N/A | C:\Users\Admin\AppData\Local\Temp\49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 3440 wrote to memory of 2680 | N/A | C:\Users\Admin\AppData\Local\Temp\49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 3440 wrote to memory of 2680 | N/A | C:\Users\Admin\AppData\Local\Temp\49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4.exe
"C:\Users\Admin\AppData\Local\Temp\49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4.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 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 167.173.78.104.in-addr.arpa | udp |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp | |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| N/A | 127.0.0.1:1000 | tcp | |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp | |
| US | 8.8.8.8:53 | 131.50.22.2.in-addr.arpa | udp |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp | |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp |
Files
memory/3440-0-0x0000000075502000-0x0000000075503000-memory.dmp
memory/3440-2-0x0000000075500000-0x0000000075AB1000-memory.dmp
memory/3440-1-0x0000000075500000-0x0000000075AB1000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 948ec552784ee8ccb45b56b5ae7d7916 |
| SHA1 | 1cdb1221c268721c8741f5f63ab197d850f62073 |
| SHA256 | 49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4 |
| SHA512 | c7055d1cdb5f7a988730a821a15d110ba8d1dec8ea6773d50116df4a32a0e481a365e58b447b95a1bff1466f3398036131a869a2bb194d26d8f90d4af8da5d44 |
memory/2680-19-0x0000000075500000-0x0000000075AB1000-memory.dmp
memory/3440-18-0x0000000075500000-0x0000000075AB1000-memory.dmp
memory/2680-20-0x0000000075500000-0x0000000075AB1000-memory.dmp
memory/2680-21-0x0000000075500000-0x0000000075AB1000-memory.dmp
memory/2680-22-0x0000000075500000-0x0000000075AB1000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2025-01-20 01:01
Reported
2025-01-20 01:03
Platform
win7-20240903-en
Max time kernel
146s
Max time network
120s
Command Line
Signatures
Orcus
Orcus family
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4.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\49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4.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 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 1508 wrote to memory of 2192 | N/A | C:\Users\Admin\AppData\Local\Temp\49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1508 wrote to memory of 2192 | N/A | C:\Users\Admin\AppData\Local\Temp\49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1508 wrote to memory of 2192 | N/A | C:\Users\Admin\AppData\Local\Temp\49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1508 wrote to memory of 2192 | N/A | C:\Users\Admin\AppData\Local\Temp\49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4.exe
"C:\Users\Admin\AppData\Local\Temp\49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp | |
| N/A | 127.0.0.1:1000 | tcp |
Files
memory/1508-0-0x00000000745D1000-0x00000000745D2000-memory.dmp
memory/1508-1-0x00000000745D0000-0x0000000074B7B000-memory.dmp
memory/1508-2-0x00000000745D0000-0x0000000074B7B000-memory.dmp
\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 948ec552784ee8ccb45b56b5ae7d7916 |
| SHA1 | 1cdb1221c268721c8741f5f63ab197d850f62073 |
| SHA256 | 49959dde61d60467f69a81253006ef7f23b9e5dc6f6bb714180240c3e50b57b4 |
| SHA512 | c7055d1cdb5f7a988730a821a15d110ba8d1dec8ea6773d50116df4a32a0e481a365e58b447b95a1bff1466f3398036131a869a2bb194d26d8f90d4af8da5d44 |
memory/2192-12-0x00000000745D0000-0x0000000074B7B000-memory.dmp
memory/1508-11-0x00000000745D0000-0x0000000074B7B000-memory.dmp
memory/2192-13-0x00000000745D0000-0x0000000074B7B000-memory.dmp
memory/2192-14-0x00000000745D0000-0x0000000074B7B000-memory.dmp
memory/2192-15-0x00000000745D0000-0x0000000074B7B000-memory.dmp