Analysis Overview
SHA256
ab6f950038053663f2e5068afe9a7429804e0508d5a8042b67e3c8ff3089f3f9
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
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious use of SendNotifyMessage
Suspicious use of FindShellTrayWindow
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-12 12:06
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 12:06
Reported
2025-01-12 12:08
Platform
win10ltsc2021-20241211-en
Max time kernel
147s
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 |
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 712 wrote to memory of 4772 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 712 wrote to memory of 4772 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 712 wrote to memory of 4772 | 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 | 172.210.232.199.in-addr.arpa | udp |
| N/A | 192.168.1.104:8848 | tcp | |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| N/A | 192.168.1.104:8848 | tcp | |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| N/A | 192.168.1.104:8848 | tcp | |
| 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 |
| N/A | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp | |
| US | 8.8.8.8:53 | 133.130.81.91.in-addr.arpa | udp |
| N/A | 192.168.1.104:8848 | tcp | |
| N/A | 192.168.1.104:8848 | tcp | |
| US | 8.8.8.8:53 | 182.129.81.91.in-addr.arpa | udp |
| N/A | 192.168.1.104:8848 | tcp | |
| US | 8.8.8.8:53 | 31.243.111.52.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/712-0-0x00000000745A2000-0x00000000745A3000-memory.dmp
memory/712-1-0x00000000745A0000-0x0000000074B51000-memory.dmp
memory/712-2-0x00000000745A0000-0x0000000074B51000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 50d544610104a2b7a774b0c048186f57 |
| SHA1 | a85b34bbf76cc2835405a3dbb2da5fc6253dc2a3 |
| SHA256 | ab6f950038053663f2e5068afe9a7429804e0508d5a8042b67e3c8ff3089f3f9 |
| SHA512 | 9b814b3b15b5dd968b5c564e2a4742ad500d9696095cf56ecc3996a3babde3deda42f6c22508d7ff3d6c491eb18c83878e62b73dc1edda464251e87bce30090d |
memory/712-7-0x00000000745A0000-0x0000000074B51000-memory.dmp
memory/4772-8-0x00000000745A0000-0x0000000074B51000-memory.dmp
memory/4772-10-0x00000000745A0000-0x0000000074B51000-memory.dmp
memory/4772-9-0x00000000745A0000-0x0000000074B51000-memory.dmp
memory/4772-11-0x00000000745A0000-0x0000000074B51000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-12 12:06
Reported
2025-01-12 12:08
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 |
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 1704 wrote to memory of 1444 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1704 wrote to memory of 1444 | N/A | C:\Users\Admin\AppData\Local\Temp\idk.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1704 wrote to memory of 1444 | 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/1704-0-0x00000000748D1000-0x00000000748D2000-memory.dmp
memory/1704-1-0x00000000748D0000-0x0000000074E81000-memory.dmp
memory/1704-2-0x00000000748D0000-0x0000000074E81000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 50d544610104a2b7a774b0c048186f57 |
| SHA1 | a85b34bbf76cc2835405a3dbb2da5fc6253dc2a3 |
| SHA256 | ab6f950038053663f2e5068afe9a7429804e0508d5a8042b67e3c8ff3089f3f9 |
| SHA512 | 9b814b3b15b5dd968b5c564e2a4742ad500d9696095cf56ecc3996a3babde3deda42f6c22508d7ff3d6c491eb18c83878e62b73dc1edda464251e87bce30090d |
memory/1444-19-0x00000000748D0000-0x0000000074E81000-memory.dmp
memory/1704-18-0x00000000748D0000-0x0000000074E81000-memory.dmp
memory/1444-20-0x00000000748D0000-0x0000000074E81000-memory.dmp
memory/1444-21-0x00000000748D0000-0x0000000074E81000-memory.dmp
memory/1444-22-0x00000000748D0000-0x0000000074E81000-memory.dmp