Analysis Overview
SHA256
05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a
Threat Level: Known bad
The file 05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a 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)
Drops file in Windows directory
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-19 01:01
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 01:01
Reported
2025-01-19 01:03
Platform
win7-20241010-en
Max time kernel
144s
Max time network
151s
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 844 wrote to memory of 2800 | N/A | C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 844 wrote to memory of 2800 | N/A | C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 844 wrote to memory of 2800 | N/A | C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 844 wrote to memory of 2800 | 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/844-0-0x0000000073E51000-0x0000000073E52000-memory.dmp
memory/844-1-0x0000000073E50000-0x00000000743FB000-memory.dmp
memory/844-2-0x0000000073E50000-0x00000000743FB000-memory.dmp
\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | ff84e9b0121d920da65d6b346b33cacf |
| SHA1 | 1108481b08eebac7f8e2846eac0c82b4f5c293c0 |
| SHA256 | 05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a |
| SHA512 | 4eef7798649eb3df04823455707d980be57ef6f0de549b09ce6523916a8054032b7cdedbb47de9d1294978dd7a69ff1987ab6bfd84467501987fe52ce8715b76 |
memory/2800-12-0x0000000073E50000-0x00000000743FB000-memory.dmp
memory/844-11-0x0000000073E50000-0x00000000743FB000-memory.dmp
memory/2800-13-0x0000000073E50000-0x00000000743FB000-memory.dmp
memory/2800-14-0x0000000073E50000-0x00000000743FB000-memory.dmp
memory/2800-15-0x0000000073E50000-0x00000000743FB000-memory.dmp
memory/2800-16-0x0000000073E50000-0x00000000743FB000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-19 01:01
Reported
2025-01-19 01:03
Platform
win10v2004-20241007-en
Max time kernel
145s
Max time network
149s
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\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 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 |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\assembly | 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 |
| File opened for modification | C:\Windows\assembly\Desktop.ini | 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 2332 wrote to memory of 3236 | N/A | C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2332 wrote to memory of 3236 | N/A | C:\Users\Admin\AppData\Local\Temp\05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2332 wrote to memory of 3236 | 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 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.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 | 209.205.72.20.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 | 22.49.80.91.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 | 60.153.16.2.in-addr.arpa | udp |
| N/A | 192.168.142.130:10134 | tcp | |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| 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/2332-0-0x00000000746F2000-0x00000000746F3000-memory.dmp
memory/2332-1-0x00000000746F0000-0x0000000074CA1000-memory.dmp
memory/2332-2-0x00000000746F0000-0x0000000074CA1000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | ff84e9b0121d920da65d6b346b33cacf |
| SHA1 | 1108481b08eebac7f8e2846eac0c82b4f5c293c0 |
| SHA256 | 05c65ff16ef367e9c925d4c1979d14753946a3e31961a54f4075c2dd6d718f4a |
| SHA512 | 4eef7798649eb3df04823455707d980be57ef6f0de549b09ce6523916a8054032b7cdedbb47de9d1294978dd7a69ff1987ab6bfd84467501987fe52ce8715b76 |
memory/2332-19-0x00000000746F0000-0x0000000074CA1000-memory.dmp
memory/3236-21-0x00000000746F0000-0x0000000074CA1000-memory.dmp
memory/3236-20-0x00000000746F0000-0x0000000074CA1000-memory.dmp
memory/3236-18-0x00000000746F0000-0x0000000074CA1000-memory.dmp
memory/3236-22-0x00000000746F0000-0x0000000074CA1000-memory.dmp
memory/3236-23-0x00000000746F0000-0x0000000074CA1000-memory.dmp