Analysis Overview
SHA256
cedc75de765783038eed29e50b78f3be3b846e2ad8fdf591880072a9dd91d17a
Threat Level: Known bad
The file idk.exe was found to be: Known bad.
Malicious Activity Summary
Orcus
Orcus family
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Drops desktop.ini file(s)
Drops file in Windows directory
Unsigned PE
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-28 22:37
Signatures
Orcus family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-28 22:37
Reported
2024-11-28 22:43
Platform
win10v2004-20241007-en
Max time kernel
292s
Max time network
300s
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 4692 wrote to memory of 4524 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 4692 wrote to memory of 4524 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 4692 wrote to memory of 4524 | 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 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| N/A | 192.168.0.122:1234 | tcp | |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | 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 |
| N/A | 192.168.0.122:1234 | tcp | |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| N/A | 192.168.0.122:1234 | tcp | |
| US | 8.8.8.8:53 | 67.208.201.84.in-addr.arpa | udp |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp |
Files
memory/4692-0-0x0000000074EA2000-0x0000000074EA3000-memory.dmp
memory/4692-1-0x0000000074EA0000-0x0000000075451000-memory.dmp
memory/4692-2-0x0000000074EA0000-0x0000000075451000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 605d73e9bf77ed652af072176bc1be67 |
| SHA1 | 063f50dee4ef0ada0aa8b67cba1b2098f97ecd97 |
| SHA256 | cedc75de765783038eed29e50b78f3be3b846e2ad8fdf591880072a9dd91d17a |
| SHA512 | 732c5fe970994a9bbfdcedcc6bf2c6d7827beefe84ebd9f81a0b84d29ca26dd559c2210260aac9276d26c43fa9c9ca445b266de2f4f33a09d70199a94164d07f |
memory/4524-18-0x0000000074EA0000-0x0000000075451000-memory.dmp
memory/4524-19-0x0000000074EA0000-0x0000000075451000-memory.dmp
memory/4692-21-0x0000000074EA0000-0x0000000075451000-memory.dmp
memory/4524-20-0x0000000074EA0000-0x0000000075451000-memory.dmp
memory/4524-22-0x0000000074EA0000-0x0000000075451000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-28 22:37
Reported
2024-11-28 22:43
Platform
win7-20240903-en
Max time kernel
292s
Max time network
295s
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 2696 wrote to memory of 2220 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2696 wrote to memory of 2220 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2696 wrote to memory of 2220 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2696 wrote to memory of 2220 | 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 | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp | |
| N/A | 192.168.0.122:1234 | tcp |
Files
memory/2696-0-0x0000000074771000-0x0000000074772000-memory.dmp
memory/2696-1-0x0000000074770000-0x0000000074D1B000-memory.dmp
memory/2696-2-0x0000000074770000-0x0000000074D1B000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 605d73e9bf77ed652af072176bc1be67 |
| SHA1 | 063f50dee4ef0ada0aa8b67cba1b2098f97ecd97 |
| SHA256 | cedc75de765783038eed29e50b78f3be3b846e2ad8fdf591880072a9dd91d17a |
| SHA512 | 732c5fe970994a9bbfdcedcc6bf2c6d7827beefe84ebd9f81a0b84d29ca26dd559c2210260aac9276d26c43fa9c9ca445b266de2f4f33a09d70199a94164d07f |
memory/2696-11-0x0000000074770000-0x0000000074D1B000-memory.dmp
memory/2220-13-0x0000000074770000-0x0000000074D1B000-memory.dmp
memory/2220-12-0x0000000074770000-0x0000000074D1B000-memory.dmp
memory/2220-14-0x0000000074770000-0x0000000074D1B000-memory.dmp
memory/2220-15-0x0000000074770000-0x0000000074D1B000-memory.dmp