Analysis Overview
SHA256
a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e
Threat Level: Known bad
The file a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e was found to be: Known bad.
Malicious Activity Summary
Orcus family
Orcus
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
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 01:02
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 01:02
Reported
2025-01-26 01:04
Platform
win7-20240903-en
Max time kernel
148s
Max time network
122s
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 2828 wrote to memory of 2088 | N/A | C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2828 wrote to memory of 2088 | N/A | C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2828 wrote to memory of 2088 | N/A | C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2828 wrote to memory of 2088 | 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/2828-0-0x00000000740DE000-0x00000000740DF000-memory.dmp
memory/2828-1-0x00000000011B0000-0x0000000001288000-memory.dmp
memory/2828-2-0x0000000000490000-0x000000000049A000-memory.dmp
memory/2828-3-0x00000000740D0000-0x00000000747BE000-memory.dmp
memory/2828-4-0x0000000000500000-0x000000000054C000-memory.dmp
memory/2828-7-0x0000000000880000-0x00000000008CE000-memory.dmp
\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 7c95cc297fcae39019ff52fdb7276ad8 |
| SHA1 | 25b76402f62aec4449d81677e3135dc3bda11c2a |
| SHA256 | a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e |
| SHA512 | 3fe97a3e16509ec3a8330b2dcec3c8844ac3efe2cda9487a469a942a12e9398d5d304583363e7359d63a92f0b90b168687a5625017c3de06263aad75f703f06e |
memory/2088-15-0x00000000740D0000-0x00000000747BE000-memory.dmp
memory/2828-14-0x00000000740D0000-0x00000000747BE000-memory.dmp
memory/2088-16-0x0000000000070000-0x0000000000148000-memory.dmp
memory/2088-17-0x00000000740D0000-0x00000000747BE000-memory.dmp
memory/2088-18-0x0000000001E90000-0x0000000001EA0000-memory.dmp
memory/2088-19-0x00000000740D0000-0x00000000747BE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-26 01:02
Reported
2025-01-26 01:04
Platform
win10v2004-20241007-en
Max time kernel
150s
Max time network
151s
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 840 wrote to memory of 4196 | N/A | C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 840 wrote to memory of 4196 | N/A | C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 840 wrote to memory of 4196 | 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 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 202.110.86.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 5.114.82.104.in-addr.arpa | udp |
| N/A | 127.0.0.1:10134 | tcp | |
| 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 | 217.106.137.52.in-addr.arpa | udp |
| N/A | 127.0.0.1:10134 | tcp | |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 182.129.81.91.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 | |
| US | 8.8.8.8:53 | 13.227.111.52.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/840-0-0x000000007466E000-0x000000007466F000-memory.dmp
memory/840-1-0x0000000000820000-0x00000000008F8000-memory.dmp
memory/840-2-0x0000000002D90000-0x0000000002D9A000-memory.dmp
memory/840-3-0x0000000074660000-0x0000000074E10000-memory.dmp
memory/840-4-0x00000000058D0000-0x0000000005E74000-memory.dmp
memory/840-5-0x0000000005780000-0x0000000005812000-memory.dmp
memory/840-6-0x00000000056E0000-0x000000000572C000-memory.dmp
memory/840-9-0x0000000005820000-0x000000000586E000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 7c95cc297fcae39019ff52fdb7276ad8 |
| SHA1 | 25b76402f62aec4449d81677e3135dc3bda11c2a |
| SHA256 | a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e |
| SHA512 | 3fe97a3e16509ec3a8330b2dcec3c8844ac3efe2cda9487a469a942a12e9398d5d304583363e7359d63a92f0b90b168687a5625017c3de06263aad75f703f06e |
memory/840-22-0x0000000074660000-0x0000000074E10000-memory.dmp
memory/4196-21-0x0000000074660000-0x0000000074E10000-memory.dmp
memory/4196-23-0x0000000074660000-0x0000000074E10000-memory.dmp
memory/4196-24-0x0000000005C60000-0x0000000005E22000-memory.dmp
memory/4196-25-0x0000000005460000-0x0000000005470000-memory.dmp
memory/4196-26-0x0000000005C10000-0x0000000005C1A000-memory.dmp
memory/4196-27-0x0000000074660000-0x0000000074E10000-memory.dmp