Analysis Overview
SHA256
ce59e3370985a4b7f243de0fb67848bcb223781077dee528e2f4adb8e9d8d656
Threat Level: Known bad
The file idk.exe was found to be: Known bad.
Malicious Activity Summary
Orcus family
Orcus
Executes dropped EXE
Checks computer location settings
Drops desktop.ini file(s)
Legitimate hosting services abused for malware hosting/C2
Drops file in Windows directory
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-12 13:59
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 13:59
Reported
2025-01-12 14:02
Platform
win10ltsc2021-20241211-en
Max time kernel
117s
Max time network
150s
Command Line
Signatures
Orcus
Orcus family
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1006597246-3150276181-3318461161-1000\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 |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | 6.tcp.eu.ngrok.io | N/A | N/A |
Drops file in Windows directory
| 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 |
| File opened for modification | C:\Windows\assembly | 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\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\idk.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
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 1552 wrote to memory of 1228 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1552 wrote to memory of 1228 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1552 wrote to memory of 1228 | 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 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 6.tcp.eu.ngrok.io | udp |
| DE | 3.69.157.220:19196 | 6.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 220.157.69.3.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
Files
memory/1552-0-0x0000000075402000-0x0000000075403000-memory.dmp
memory/1552-1-0x0000000075400000-0x00000000759B1000-memory.dmp
memory/1552-2-0x0000000075400000-0x00000000759B1000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | c0f4b33fab9864dfebccb1f7621ac76a |
| SHA1 | 9e65684a22bae25570f019366657a83522434590 |
| SHA256 | ce59e3370985a4b7f243de0fb67848bcb223781077dee528e2f4adb8e9d8d656 |
| SHA512 | 6cd5672e2b3615ebb94fb96de29fe1b2cbfa81c1e18080ad6fbb48b25457481e17d8919823970e5bd1e230e2e8c76d379a515551e35bdc10f305d3349ab3cefe |
memory/1552-7-0x0000000075400000-0x00000000759B1000-memory.dmp
memory/1228-9-0x0000000075400000-0x00000000759B1000-memory.dmp
memory/1228-8-0x0000000075400000-0x00000000759B1000-memory.dmp
memory/1228-10-0x0000000075400000-0x00000000759B1000-memory.dmp
memory/1228-11-0x0000000075400000-0x00000000759B1000-memory.dmp
memory/1228-14-0x0000000075400000-0x00000000759B1000-memory.dmp
memory/1228-15-0x0000000075400000-0x00000000759B1000-memory.dmp
memory/1228-16-0x0000000075400000-0x00000000759B1000-memory.dmp
memory/1228-17-0x0000000075400000-0x00000000759B1000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-12 13:59
Reported
2025-01-12 14:02
Platform
win11-20241007-en
Max time kernel
147s
Max time network
151s
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 |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | 6.tcp.eu.ngrok.io | N/A | N/A |
Drops file in Windows directory
| 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 |
| File opened for modification | C:\Windows\assembly | 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
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
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 2792 wrote to memory of 3828 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2792 wrote to memory of 3828 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2792 wrote to memory of 3828 | 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 | 6.tcp.eu.ngrok.io | udp |
| DE | 3.66.38.117:19196 | 6.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 117.38.66.3.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
Files
memory/2792-0-0x0000000074FA1000-0x0000000074FA2000-memory.dmp
memory/2792-1-0x0000000074FA0000-0x0000000075551000-memory.dmp
memory/2792-2-0x0000000074FA0000-0x0000000075551000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | c0f4b33fab9864dfebccb1f7621ac76a |
| SHA1 | 9e65684a22bae25570f019366657a83522434590 |
| SHA256 | ce59e3370985a4b7f243de0fb67848bcb223781077dee528e2f4adb8e9d8d656 |
| SHA512 | 6cd5672e2b3615ebb94fb96de29fe1b2cbfa81c1e18080ad6fbb48b25457481e17d8919823970e5bd1e230e2e8c76d379a515551e35bdc10f305d3349ab3cefe |
memory/2792-20-0x0000000074FA0000-0x0000000075551000-memory.dmp
memory/3828-21-0x0000000074FA0000-0x0000000075551000-memory.dmp
memory/3828-19-0x0000000074FA0000-0x0000000075551000-memory.dmp
memory/3828-18-0x0000000074FA0000-0x0000000075551000-memory.dmp
memory/3828-22-0x0000000074FA0000-0x0000000075551000-memory.dmp
memory/3828-25-0x0000000074FA0000-0x0000000075551000-memory.dmp
memory/3828-26-0x0000000074FA0000-0x0000000075551000-memory.dmp