Analysis Overview
SHA256
43008aa8b1a79bd1f2b5af32a5cc180b27fa785a6af2d85bf49bbc5d01afb402
Threat Level: Known bad
The file idk.exe was found to be: Known bad.
Malicious Activity Summary
Orcus
Orcus family
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Drops desktop.ini file(s)
Drops file in Windows directory
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SendNotifyMessage
Suspicious use of FindShellTrayWindow
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-16 22:12
Signatures
Orcus family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-01-16 22:12
Reported
2025-01-16 22:15
Platform
win7-20240903-en
Max time kernel
138s
Max time network
140s
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 2024 wrote to memory of 800 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2024 wrote to memory of 800 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2024 wrote to memory of 800 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2024 wrote to memory of 800 | 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
Files
memory/2024-0-0x0000000074711000-0x0000000074712000-memory.dmp
memory/2024-1-0x0000000074710000-0x0000000074CBB000-memory.dmp
memory/2024-2-0x0000000074710000-0x0000000074CBB000-memory.dmp
\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 564dee5326ab9120610bf4a8f63ab4c8 |
| SHA1 | ae4ba60164d03f17f8fa0173a661b1bc33c5b8da |
| SHA256 | 43008aa8b1a79bd1f2b5af32a5cc180b27fa785a6af2d85bf49bbc5d01afb402 |
| SHA512 | 384ebe4aaba380018bf88e3703ecd15b6b7381b068ceccb49e92bbbfda2968ba38ad74153300aea5553e99d98af577b3c9ca43b3f2d71fabba0faadb2ba32d8e |
memory/2024-12-0x0000000074710000-0x0000000074CBB000-memory.dmp
memory/800-11-0x0000000074710000-0x0000000074CBB000-memory.dmp
memory/800-13-0x0000000074710000-0x0000000074CBB000-memory.dmp
memory/800-14-0x0000000074710000-0x0000000074CBB000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-16 22:12
Reported
2025-01-16 22:15
Platform
win10v2004-20241007-en
Max time kernel
145s
Max time network
139s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\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 | 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 |
| File opened for modification | 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 4080 wrote to memory of 3340 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 4080 wrote to memory of 3340 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 4080 wrote to memory of 3340 | 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 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 7.98.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
Files
memory/4080-0-0x0000000075112000-0x0000000075113000-memory.dmp
memory/4080-1-0x0000000075110000-0x00000000756C1000-memory.dmp
memory/4080-2-0x0000000075110000-0x00000000756C1000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 564dee5326ab9120610bf4a8f63ab4c8 |
| SHA1 | ae4ba60164d03f17f8fa0173a661b1bc33c5b8da |
| SHA256 | 43008aa8b1a79bd1f2b5af32a5cc180b27fa785a6af2d85bf49bbc5d01afb402 |
| SHA512 | 384ebe4aaba380018bf88e3703ecd15b6b7381b068ceccb49e92bbbfda2968ba38ad74153300aea5553e99d98af577b3c9ca43b3f2d71fabba0faadb2ba32d8e |
memory/4080-19-0x0000000075110000-0x00000000756C1000-memory.dmp
memory/3340-21-0x0000000075110000-0x00000000756C1000-memory.dmp
memory/3340-20-0x0000000075110000-0x00000000756C1000-memory.dmp
memory/3340-18-0x0000000075110000-0x00000000756C1000-memory.dmp
memory/3340-22-0x0000000075110000-0x00000000756C1000-memory.dmp