Analysis Overview
SHA256
a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e
Threat Level: Known bad
The file a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e was found to be: Known bad.
Malicious Activity Summary
Orcus
Orcus family
Loads dropped DLL
Checks computer location settings
Executes dropped EXE
System Location Discovery: System Language Discovery
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-26 01:07
Signatures
Orcus family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-01-26 01:07
Reported
2025-01-26 01:09
Platform
win7-20241010-en
Max time kernel
150s
Max time network
19s
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\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.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\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.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 2424 wrote to memory of 2960 | N/A | C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2424 wrote to memory of 2960 | N/A | C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2424 wrote to memory of 2960 | N/A | C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2424 wrote to memory of 2960 | N/A | C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe
"C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.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 | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp |
Files
memory/2424-0-0x00000000748BE000-0x00000000748BF000-memory.dmp
memory/2424-1-0x0000000000800000-0x00000000008D8000-memory.dmp
memory/2424-2-0x00000000004C0000-0x00000000004CA000-memory.dmp
memory/2424-3-0x00000000748B0000-0x0000000074F9E000-memory.dmp
memory/2424-4-0x0000000001F50000-0x0000000001F9C000-memory.dmp
memory/2424-7-0x0000000004260000-0x00000000042AE000-memory.dmp
\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 7c95cc297fcae39019ff52fdb7276ad8 |
| SHA1 | 25b76402f62aec4449d81677e3135dc3bda11c2a |
| SHA256 | a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e |
| SHA512 | 3fe97a3e16509ec3a8330b2dcec3c8844ac3efe2cda9487a469a942a12e9398d5d304583363e7359d63a92f0b90b168687a5625017c3de06263aad75f703f06e |
memory/2424-14-0x00000000748B0000-0x0000000074F9E000-memory.dmp
memory/2960-16-0x0000000000D10000-0x0000000000DE8000-memory.dmp
memory/2960-15-0x00000000748B0000-0x0000000074F9E000-memory.dmp
memory/2960-17-0x00000000748B0000-0x0000000074F9E000-memory.dmp
memory/2960-18-0x00000000004A0000-0x00000000004B0000-memory.dmp
memory/2960-19-0x00000000748B0000-0x0000000074F9E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-26 01:07
Reported
2025-01-26 01:09
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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.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\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.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 3100 wrote to memory of 3300 | N/A | C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 3100 wrote to memory of 3300 | N/A | C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 3100 wrote to memory of 3300 | N/A | C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe
"C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.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 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 249.110.86.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 7.98.51.23.in-addr.arpa | udp |
| N/A | 127.0.0.1:10134 | tcp | |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.66.18.2.in-addr.arpa | udp |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| US | 8.8.8.8:53 | 202.110.86.104.in-addr.arpa | udp |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp | |
| N/A | 127.0.0.1:10134 | tcp |
Files
memory/3100-0-0x0000000074EEE000-0x0000000074EEF000-memory.dmp
memory/3100-1-0x0000000000750000-0x0000000000828000-memory.dmp
memory/3100-2-0x0000000005190000-0x000000000519A000-memory.dmp
memory/3100-3-0x0000000074EE0000-0x0000000075690000-memory.dmp
memory/3100-4-0x0000000005890000-0x0000000005E34000-memory.dmp
memory/3100-5-0x0000000005690000-0x0000000005722000-memory.dmp
memory/3100-6-0x0000000005600000-0x000000000564C000-memory.dmp
memory/3100-9-0x0000000005740000-0x000000000578E000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 7c95cc297fcae39019ff52fdb7276ad8 |
| SHA1 | 25b76402f62aec4449d81677e3135dc3bda11c2a |
| SHA256 | a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e |
| SHA512 | 3fe97a3e16509ec3a8330b2dcec3c8844ac3efe2cda9487a469a942a12e9398d5d304583363e7359d63a92f0b90b168687a5625017c3de06263aad75f703f06e |
memory/3300-21-0x0000000074EE0000-0x0000000075690000-memory.dmp
memory/3100-22-0x0000000074EE0000-0x0000000075690000-memory.dmp
memory/3300-23-0x0000000074EE0000-0x0000000075690000-memory.dmp
memory/3300-24-0x00000000064C0000-0x0000000006682000-memory.dmp
memory/3300-25-0x0000000005940000-0x0000000005950000-memory.dmp
memory/3300-26-0x0000000006810000-0x000000000681A000-memory.dmp
memory/3300-27-0x0000000074EE0000-0x0000000075690000-memory.dmp