Analysis Overview
SHA256
52dc6a546bfb806822f34b61fcaad4c6cf80b983bd97ed598c44a75087828bca
Threat Level: Known bad
The file idk.exe was found to be: Known bad.
Malicious Activity Summary
Orcus family
Orcus
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 WriteProcessMemory
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-12 01:15
Signatures
Orcus family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-01-12 01:15
Reported
2025-01-12 01:17
Platform
win7-20240903-en
Max time kernel
146s
Max time network
150s
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\idk.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\idk.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 WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1984 wrote to memory of 3040 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1984 wrote to memory of 3040 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1984 wrote to memory of 3040 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1984 wrote to memory of 3040 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\idk.exe
"C:\Users\Admin\AppData\Local\Temp\idk.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 | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp |
Files
memory/1984-0-0x0000000074CC1000-0x0000000074CC2000-memory.dmp
memory/1984-1-0x0000000074CC0000-0x000000007526B000-memory.dmp
memory/1984-2-0x0000000074CC0000-0x000000007526B000-memory.dmp
\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | e2fb3738086afd9a87d5ac2a09d29948 |
| SHA1 | 178434789820a0c1175ea70462bc2a6b57a008e8 |
| SHA256 | 52dc6a546bfb806822f34b61fcaad4c6cf80b983bd97ed598c44a75087828bca |
| SHA512 | 83b3bdc1d4bb1addfe3ef1f7edae078c8c1352d01bb0038ca9ffc27bf84c037886a22333cf554060022e3a126e84c6d9d9701ad6fbb32613fc8e142b981f23d0 |
memory/1984-10-0x0000000074CC0000-0x000000007526B000-memory.dmp
memory/3040-12-0x0000000074CC0000-0x000000007526B000-memory.dmp
memory/3040-13-0x0000000074CC0000-0x000000007526B000-memory.dmp
memory/3040-14-0x0000000074CC0000-0x000000007526B000-memory.dmp
memory/3040-15-0x0000000074CC0000-0x000000007526B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-12 01:15
Reported
2025-01-12 01:17
Platform
win10v2004-20241007-en
Max time kernel
149s
Max time network
151s
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\idk.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\idk.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\idk.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\idk.exe | N/A |
| File opened for modification | C:\Windows\assembly | C:\Users\Admin\AppData\Local\Temp\idk.exe | N/A |
| File created | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\idk.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\idk.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 WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1520 wrote to memory of 3256 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1520 wrote to memory of 3256 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1520 wrote to memory of 3256 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\idk.exe
"C:\Users\Admin\AppData\Local\Temp\idk.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 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.144.22.2.in-addr.arpa | udp |
| N/A | 192.168.1.104:8848 | tcp | |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| N/A | 192.168.1.104:8848 | tcp | |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| N/A | 192.168.1.104:8848 | tcp | |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.49.80.91.in-addr.arpa | udp |
| N/A | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp | |
| US | 8.8.8.8:53 | 28.173.189.20.in-addr.arpa | udp |
Files
memory/1520-0-0x0000000074C62000-0x0000000074C63000-memory.dmp
memory/1520-1-0x0000000074C60000-0x0000000075211000-memory.dmp
memory/1520-2-0x0000000074C60000-0x0000000075211000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | e2fb3738086afd9a87d5ac2a09d29948 |
| SHA1 | 178434789820a0c1175ea70462bc2a6b57a008e8 |
| SHA256 | 52dc6a546bfb806822f34b61fcaad4c6cf80b983bd97ed598c44a75087828bca |
| SHA512 | 83b3bdc1d4bb1addfe3ef1f7edae078c8c1352d01bb0038ca9ffc27bf84c037886a22333cf554060022e3a126e84c6d9d9701ad6fbb32613fc8e142b981f23d0 |
memory/3256-18-0x0000000074C60000-0x0000000075211000-memory.dmp
memory/3256-20-0x0000000074C60000-0x0000000075211000-memory.dmp
memory/1520-19-0x0000000074C60000-0x0000000075211000-memory.dmp
memory/3256-21-0x0000000074C60000-0x0000000075211000-memory.dmp