Analysis Overview
SHA256
1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64
Threat Level: Known bad
The file 1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64 was found to be: Known bad.
Malicious Activity Summary
Orcus family
Orcus
Loads dropped DLL
Executes dropped EXE
Checks computer location settings
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-20 01:00
Signatures
Orcus family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-01-20 01:00
Reported
2025-01-20 01:03
Platform
win7-20240903-en
Max time kernel
146s
Max time network
149s
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\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.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\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.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 2484 wrote to memory of 2424 | N/A | C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2484 wrote to memory of 2424 | N/A | C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2484 wrote to memory of 2424 | N/A | C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2484 wrote to memory of 2424 | N/A | C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.exe
"C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.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 | 10.0.0.121:10134 | tcp | |
| N/A | 10.0.0.121:10134 | tcp | |
| N/A | 10.0.0.121:10134 | tcp | |
| N/A | 10.0.0.121:10134 | tcp | |
| N/A | 10.0.0.121:10134 | tcp | |
| N/A | 10.0.0.121:10134 | tcp | |
| N/A | 10.0.0.121:10134 | tcp | |
| N/A | 10.0.0.121:10134 | tcp | |
| N/A | 10.0.0.121:10134 | tcp | |
| N/A | 10.0.0.121:10134 | tcp | |
| N/A | 10.0.0.121:10134 | tcp | |
| N/A | 10.0.0.121:10134 | tcp |
Files
memory/2484-0-0x000000007413E000-0x000000007413F000-memory.dmp
memory/2484-1-0x0000000000A90000-0x0000000000B6A000-memory.dmp
memory/2484-2-0x00000000001B0000-0x00000000001BA000-memory.dmp
memory/2484-3-0x0000000074130000-0x000000007481E000-memory.dmp
memory/2484-4-0x00000000005D0000-0x000000000061C000-memory.dmp
memory/2484-5-0x00000000002E0000-0x00000000002E8000-memory.dmp
memory/2484-8-0x0000000002150000-0x000000000219E000-memory.dmp
\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 787b41af9d28bb93bb3b8e574f06a4cf |
| SHA1 | 9fca5a5fcbd4c1e38e9b1fa52a6af916c3267cd7 |
| SHA256 | 1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64 |
| SHA512 | 51663df1670c6da11d262e654fb3cd700b10d1fac2398ff900ff7be84673f6120dbe0290d877b9e07adb53633d5118ed29c5f585d2494a445070c4517e80c740 |
memory/2484-15-0x0000000074130000-0x000000007481E000-memory.dmp
memory/2424-16-0x0000000074130000-0x000000007481E000-memory.dmp
memory/2424-17-0x0000000000950000-0x0000000000A2A000-memory.dmp
memory/2424-18-0x0000000074130000-0x000000007481E000-memory.dmp
memory/2424-19-0x0000000000910000-0x0000000000920000-memory.dmp
memory/2424-20-0x0000000074130000-0x000000007481E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-20 01:00
Reported
2025-01-20 01:03
Platform
win10v2004-20241007-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
Orcus
Orcus family
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.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 |
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\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.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 1520 wrote to memory of 3108 | N/A | C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1520 wrote to memory of 3108 | N/A | C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1520 wrote to memory of 3108 | N/A | C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.exe
"C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.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 |
| US | 8.8.8.8:53 | 60.153.16.2.in-addr.arpa | udp |
| N/A | 10.0.0.121:10134 | tcp | |
| US | 8.8.8.8:53 | 73.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 167.173.78.104.in-addr.arpa | udp |
| N/A | 10.0.0.121:10134 | tcp | |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| N/A | 10.0.0.121:10134 | tcp | |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| N/A | 10.0.0.121:10134 | tcp | |
| N/A | 10.0.0.121:10134 | tcp | |
| N/A | 10.0.0.121:10134 | tcp | |
| N/A | 10.0.0.121:10134 | tcp | |
| N/A | 10.0.0.121:10134 | tcp | |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| N/A | 10.0.0.121:10134 | tcp | |
| N/A | 10.0.0.121:10134 | tcp | |
| N/A | 10.0.0.121:10134 | tcp | |
| N/A | 10.0.0.121:10134 | tcp | |
| US | 8.8.8.8:53 | 195.201.50.20.in-addr.arpa | udp |
Files
memory/1520-0-0x0000000074A7E000-0x0000000074A7F000-memory.dmp
memory/1520-1-0x0000000000050000-0x000000000012A000-memory.dmp
memory/1520-2-0x0000000002420000-0x000000000242A000-memory.dmp
memory/1520-3-0x0000000074A70000-0x0000000075220000-memory.dmp
memory/1520-4-0x0000000005290000-0x0000000005834000-memory.dmp
memory/1520-6-0x0000000004F00000-0x0000000004F4C000-memory.dmp
memory/1520-5-0x0000000004F90000-0x0000000005022000-memory.dmp
memory/1520-7-0x00000000050A0000-0x0000000005106000-memory.dmp
memory/1520-8-0x0000000005090000-0x0000000005098000-memory.dmp
memory/1520-11-0x0000000005A40000-0x0000000005A8E000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 787b41af9d28bb93bb3b8e574f06a4cf |
| SHA1 | 9fca5a5fcbd4c1e38e9b1fa52a6af916c3267cd7 |
| SHA256 | 1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64 |
| SHA512 | 51663df1670c6da11d262e654fb3cd700b10d1fac2398ff900ff7be84673f6120dbe0290d877b9e07adb53633d5118ed29c5f585d2494a445070c4517e80c740 |
memory/3108-24-0x0000000074A70000-0x0000000075220000-memory.dmp
memory/1520-23-0x0000000074A70000-0x0000000075220000-memory.dmp
memory/3108-25-0x0000000074A70000-0x0000000075220000-memory.dmp
memory/3108-26-0x00000000064E0000-0x00000000066A2000-memory.dmp
memory/3108-27-0x0000000005A00000-0x0000000005A10000-memory.dmp
memory/3108-28-0x00000000064D0000-0x00000000064DA000-memory.dmp
memory/3108-29-0x0000000074A70000-0x0000000075220000-memory.dmp