Analysis Overview
SHA256
bbc6bbbf62040d31c403ebb6cc1fde194f4676c3f7dde52af531d88aefc0238b
Threat Level: Known bad
The file idk.exe 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)
Legitimate hosting services abused for malware hosting/C2
Drops file in Windows directory
Unsigned PE
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-14 09:27
Signatures
Orcus family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-01-14 09:27
Reported
2025-01-14 09:29
Platform
win7-20240903-en
Max time kernel
142s
Max time network
144s
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 |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | 6.tcp.eu.ngrok.io | N/A | N/A |
| N/A | 6.tcp.eu.ngrok.io | N/A | N/A |
| N/A | 6.tcp.eu.ngrok.io | N/A | 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 2340 wrote to memory of 2540 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2340 wrote to memory of 2540 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2340 wrote to memory of 2540 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2340 wrote to memory of 2540 | 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 | 3.69.157.220:14311 | 6.tcp.eu.ngrok.io | tcp |
| DE | 3.69.157.220:14311 | 6.tcp.eu.ngrok.io | tcp |
| DE | 3.69.157.220:14311 | 6.tcp.eu.ngrok.io | tcp |
| DE | 3.69.157.220:14311 | 6.tcp.eu.ngrok.io | tcp |
| DE | 3.69.157.220:14311 | 6.tcp.eu.ngrok.io | tcp |
| DE | 3.69.157.220:14311 | 6.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 6.tcp.eu.ngrok.io | udp |
| DE | 3.69.157.220:14311 | 6.tcp.eu.ngrok.io | tcp |
| DE | 3.69.157.220:14311 | 6.tcp.eu.ngrok.io | tcp |
| DE | 3.69.157.220:14311 | 6.tcp.eu.ngrok.io | tcp |
| DE | 3.69.157.220:14311 | 6.tcp.eu.ngrok.io | tcp |
| DE | 3.69.157.220:14311 | 6.tcp.eu.ngrok.io | tcp |
| DE | 3.69.157.220:14311 | 6.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 6.tcp.eu.ngrok.io | udp |
| DE | 3.69.115.178:14311 | 6.tcp.eu.ngrok.io | tcp |
Files
memory/2340-0-0x0000000074131000-0x0000000074132000-memory.dmp
memory/2340-2-0x0000000074130000-0x00000000746DB000-memory.dmp
memory/2340-1-0x0000000074130000-0x00000000746DB000-memory.dmp
\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 4430b4864bdb0536bb555c64f90a6fdf |
| SHA1 | 9692cd79639a1f228a389472b65ab04f3c016536 |
| SHA256 | bbc6bbbf62040d31c403ebb6cc1fde194f4676c3f7dde52af531d88aefc0238b |
| SHA512 | b030596c8e6d605088f8bc503f0fe012cdf2398109459766dfbaf647070fe1cac3940292bd0089e334da309989129df0f6577fcfdbda58e0d15a10a8d43a436b |
memory/2340-11-0x0000000074130000-0x00000000746DB000-memory.dmp
memory/2540-12-0x0000000074130000-0x00000000746DB000-memory.dmp
memory/2540-13-0x0000000074130000-0x00000000746DB000-memory.dmp
memory/2540-14-0x0000000074130000-0x00000000746DB000-memory.dmp
memory/2540-15-0x0000000074130000-0x00000000746DB000-memory.dmp
memory/2540-16-0x0000000074130000-0x00000000746DB000-memory.dmp
memory/2540-17-0x0000000074130000-0x00000000746DB000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-14 09:27
Reported
2025-01-14 09:29
Platform
win10v2004-20241007-en
Max time kernel
139s
Max time network
142s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\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 |
| N/A | 6.tcp.eu.ngrok.io | N/A | N/A |
| N/A | 6.tcp.eu.ngrok.io | N/A | N/A |
| 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
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 3672 wrote to memory of 1152 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 3672 wrote to memory of 1152 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 3672 wrote to memory of 1152 | 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 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.130.81.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 6.tcp.eu.ngrok.io | udp |
| DE | 3.69.115.178:14311 | 6.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 71.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 167.173.78.104.in-addr.arpa | udp |
| DE | 3.69.115.178:14311 | 6.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| DE | 3.69.115.178:14311 | 6.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 212.20.149.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| DE | 3.69.115.178:14311 | 6.tcp.eu.ngrok.io | tcp |
| DE | 3.69.115.178:14311 | 6.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 6.tcp.eu.ngrok.io | udp |
| DE | 3.69.157.220:14311 | 6.tcp.eu.ngrok.io | tcp |
| DE | 3.69.157.220:14311 | 6.tcp.eu.ngrok.io | tcp |
| DE | 3.69.157.220:14311 | 6.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| DE | 3.69.157.220:14311 | 6.tcp.eu.ngrok.io | tcp |
| DE | 3.69.157.220:14311 | 6.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 6.tcp.eu.ngrok.io | udp |
| DE | 3.69.157.220:14311 | 6.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 6.tcp.eu.ngrok.io | udp |
| DE | 3.69.157.220:14311 | 6.tcp.eu.ngrok.io | tcp |
Files
memory/3672-0-0x0000000074622000-0x0000000074623000-memory.dmp
memory/3672-1-0x0000000074620000-0x0000000074BD1000-memory.dmp
memory/3672-2-0x0000000074620000-0x0000000074BD1000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 4430b4864bdb0536bb555c64f90a6fdf |
| SHA1 | 9692cd79639a1f228a389472b65ab04f3c016536 |
| SHA256 | bbc6bbbf62040d31c403ebb6cc1fde194f4676c3f7dde52af531d88aefc0238b |
| SHA512 | b030596c8e6d605088f8bc503f0fe012cdf2398109459766dfbaf647070fe1cac3940292bd0089e334da309989129df0f6577fcfdbda58e0d15a10a8d43a436b |
memory/1152-19-0x0000000074620000-0x0000000074BD1000-memory.dmp
memory/1152-20-0x0000000074620000-0x0000000074BD1000-memory.dmp
memory/3672-18-0x0000000074620000-0x0000000074BD1000-memory.dmp
memory/1152-21-0x0000000074620000-0x0000000074BD1000-memory.dmp
memory/1152-22-0x0000000074620000-0x0000000074BD1000-memory.dmp
memory/1152-23-0x0000000074620000-0x0000000074BD1000-memory.dmp