Analysis Overview
SHA256
52dc6a546bfb806822f34b61fcaad4c6cf80b983bd97ed598c44a75087828bca
Threat Level: Known bad
The file idk.exe was found to be: Known bad.
Malicious Activity Summary
Orcus family
Orcus
Checks computer location settings
Executes dropped EXE
Drops desktop.ini file(s)
Drops file in Windows directory
Enumerates physical storage devices
Unsigned PE
System Location Discovery: System Language Discovery
Suspicious behavior: EnumeratesProcesses
Suspicious use of SendNotifyMessage
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-12 01:09
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 01:09
Reported
2025-01-12 01:12
Platform
win10ltsc2021-20241211-en
Max time kernel
146s
Max time network
151s
Command Line
Signatures
Orcus
Orcus family
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1798060429-1844192857-3165087720-1000\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 1852 wrote to memory of 4836 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1852 wrote to memory of 4836 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1852 wrote to memory of 4836 | 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 | |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| N/A | 192.168.1.104:8848 | tcp | |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| N/A | 192.168.1.104:8848 | tcp | |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.163.245.4.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 | |
| 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 | 19.229.111.52.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 |
Files
memory/1852-0-0x0000000075202000-0x0000000075203000-memory.dmp
memory/1852-1-0x0000000075200000-0x00000000757B1000-memory.dmp
memory/1852-2-0x0000000075200000-0x00000000757B1000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | e2fb3738086afd9a87d5ac2a09d29948 |
| SHA1 | 178434789820a0c1175ea70462bc2a6b57a008e8 |
| SHA256 | 52dc6a546bfb806822f34b61fcaad4c6cf80b983bd97ed598c44a75087828bca |
| SHA512 | 83b3bdc1d4bb1addfe3ef1f7edae078c8c1352d01bb0038ca9ffc27bf84c037886a22333cf554060022e3a126e84c6d9d9701ad6fbb32613fc8e142b981f23d0 |
memory/1852-8-0x0000000075200000-0x00000000757B1000-memory.dmp
memory/4836-7-0x0000000075200000-0x00000000757B1000-memory.dmp
memory/4836-10-0x0000000075200000-0x00000000757B1000-memory.dmp
memory/4836-9-0x0000000075200000-0x00000000757B1000-memory.dmp
memory/4836-11-0x0000000075200000-0x00000000757B1000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-12 01:09
Reported
2025-01-12 01:12
Platform
win11-20241007-en
Max time kernel
147s
Max time network
150s
Command Line
Signatures
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 3856 wrote to memory of 5076 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 3856 wrote to memory of 5076 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 3856 wrote to memory of 5076 | 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 | |
| US | 8.8.8.8:53 | 8.8.8.8.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 |
Files
memory/3856-0-0x00000000747A1000-0x00000000747A2000-memory.dmp
memory/3856-1-0x00000000747A0000-0x0000000074D51000-memory.dmp
memory/3856-2-0x00000000747A0000-0x0000000074D51000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | e2fb3738086afd9a87d5ac2a09d29948 |
| SHA1 | 178434789820a0c1175ea70462bc2a6b57a008e8 |
| SHA256 | 52dc6a546bfb806822f34b61fcaad4c6cf80b983bd97ed598c44a75087828bca |
| SHA512 | 83b3bdc1d4bb1addfe3ef1f7edae078c8c1352d01bb0038ca9ffc27bf84c037886a22333cf554060022e3a126e84c6d9d9701ad6fbb32613fc8e142b981f23d0 |
memory/5076-19-0x00000000747A0000-0x0000000074D51000-memory.dmp
memory/3856-20-0x00000000747A0000-0x0000000074D51000-memory.dmp
memory/5076-18-0x00000000747A0000-0x0000000074D51000-memory.dmp
memory/5076-21-0x00000000747A0000-0x0000000074D51000-memory.dmp