Analysis Overview
SHA256
05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a
Threat Level: Known bad
The file 05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a was found to be: Known bad.
Malicious Activity Summary
Orcus family
Orcus
Loads dropped DLL
Executes dropped EXE
Checks computer location settings
Drops desktop.ini file(s)
Drops file in Windows directory
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-19 01:06
Signatures
Orcus family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-01-19 01:06
Reported
2025-01-19 01:08
Platform
win7-20240903-en
Max time kernel
138s
Max time network
148s
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\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.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\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.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 WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1508 wrote to memory of 2776 | N/A | C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1508 wrote to memory of 2776 | N/A | C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1508 wrote to memory of 2776 | N/A | C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1508 wrote to memory of 2776 | N/A | C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.exe
"C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.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 | 192.168.142.130:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 192.168.142.130:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 192.168.142.130:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 192.168.142.130:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 192.168.142.130:10134 | tcp |
Files
memory/1508-0-0x00000000745D1000-0x00000000745D2000-memory.dmp
memory/1508-1-0x00000000745D0000-0x0000000074B7B000-memory.dmp
memory/1508-2-0x00000000745D0000-0x0000000074B7B000-memory.dmp
\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | ff84e9b0121d920da65d6b346b33cacf |
| SHA1 | 1108481b08eebac7f8e2846eac0c82b4f5c293c0 |
| SHA256 | 05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a |
| SHA512 | 4eef7798649eb3df04823455707d980be57ef6f0de549b09ce6523916a8054032b7cdedbb47de9d1294978dd7a69ff1987ab6bfd84467501987fe52ce8715b76 |
memory/2776-12-0x00000000745D0000-0x0000000074B7B000-memory.dmp
memory/1508-11-0x00000000745D0000-0x0000000074B7B000-memory.dmp
memory/2776-13-0x00000000745D0000-0x0000000074B7B000-memory.dmp
memory/2776-14-0x00000000745D0000-0x0000000074B7B000-memory.dmp
memory/2776-15-0x00000000745D0000-0x0000000074B7B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-19 01:06
Reported
2025-01-19 01:08
Platform
win10v2004-20241007-en
Max time kernel
144s
Max time network
148s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.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 opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.exe | N/A |
| File created | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.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\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.exe | N/A |
| File opened for modification | C:\Windows\assembly | C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.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\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.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 WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4004 wrote to memory of 3896 | N/A | C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 4004 wrote to memory of 3896 | N/A | C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 4004 wrote to memory of 3896 | N/A | C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.exe
"C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.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 | 149.220.183.52.in-addr.arpa | udp |
| N/A | 192.168.142.130:10134 | tcp | |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 153.30.38.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| N/A | 127.0.0.1:10134 | 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 | 172.210.232.199.in-addr.arpa | udp |
| N/A | 192.168.142.130:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| US | 8.8.8.8:53 | 182.129.81.91.in-addr.arpa | udp |
| N/A | 192.168.142.130:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 192.168.142.130:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 192.168.142.130:10134 | tcp |
Files
memory/4004-0-0x0000000074852000-0x0000000074853000-memory.dmp
memory/4004-1-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/4004-2-0x0000000074850000-0x0000000074E01000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | ff84e9b0121d920da65d6b346b33cacf |
| SHA1 | 1108481b08eebac7f8e2846eac0c82b4f5c293c0 |
| SHA256 | 05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a |
| SHA512 | 4eef7798649eb3df04823455707d980be57ef6f0de549b09ce6523916a8054032b7cdedbb47de9d1294978dd7a69ff1987ab6bfd84467501987fe52ce8715b76 |
memory/4004-19-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/3896-20-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/3896-21-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/3896-18-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/3896-22-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/3896-23-0x0000000074850000-0x0000000074E01000-memory.dmp