Analysis Overview
SHA256
1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64
Threat Level: Known bad
The file 1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64 was found to be: Known bad.
Malicious Activity Summary
Orcus
Orcus family
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
2025-01-20 01:06
Signatures
Orcus family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-01-20 01:06
Reported
2025-01-20 01:08
Platform
win7-20240903-en
Max time kernel
146s
Max time network
150s
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 1892 wrote to memory of 2736 | N/A | C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1892 wrote to memory of 2736 | N/A | C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1892 wrote to memory of 2736 | N/A | C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 1892 wrote to memory of 2736 | 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/1892-0-0x0000000073EAE000-0x0000000073EAF000-memory.dmp
memory/1892-1-0x0000000000CB0000-0x0000000000D8A000-memory.dmp
memory/1892-2-0x0000000000270000-0x000000000027A000-memory.dmp
memory/1892-3-0x0000000073EA0000-0x000000007458E000-memory.dmp
memory/1892-4-0x00000000042A0000-0x00000000042EC000-memory.dmp
memory/1892-5-0x0000000000520000-0x0000000000528000-memory.dmp
memory/1892-8-0x0000000004870000-0x00000000048BE000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 787b41af9d28bb93bb3b8e574f06a4cf |
| SHA1 | 9fca5a5fcbd4c1e38e9b1fa52a6af916c3267cd7 |
| SHA256 | 1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64 |
| SHA512 | 51663df1670c6da11d262e654fb3cd700b10d1fac2398ff900ff7be84673f6120dbe0290d877b9e07adb53633d5118ed29c5f585d2494a445070c4517e80c740 |
memory/1892-14-0x0000000073EA0000-0x000000007458E000-memory.dmp
memory/2736-16-0x0000000072ECE000-0x0000000072ECF000-memory.dmp
memory/2736-18-0x0000000072EC0000-0x00000000735AE000-memory.dmp
memory/2736-17-0x0000000000110000-0x00000000001EA000-memory.dmp
memory/2736-19-0x00000000005F0000-0x0000000000600000-memory.dmp
memory/2736-20-0x0000000072ECE000-0x0000000072ECF000-memory.dmp
memory/2736-21-0x0000000072EC0000-0x00000000735AE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-20 01:06
Reported
2025-01-20 01:08
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-1-5-21-493223053-2004649691-1575712786-1000\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\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.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 3352 wrote to memory of 1464 | N/A | C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 3352 wrote to memory of 1464 | N/A | C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 3352 wrote to memory of 1464 | 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 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 131.50.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.159.190.20.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 | 217.106.137.52.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 | 133.211.185.52.in-addr.arpa | udp |
| N/A | 10.0.0.121:10134 | tcp | |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 166.190.18.2.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 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.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 | |
| N/A | 10.0.0.121:10134 | tcp | |
| US | 8.8.8.8:53 | udp |
Files
memory/3352-0-0x0000000074BDE000-0x0000000074BDF000-memory.dmp
memory/3352-1-0x0000000000420000-0x00000000004FA000-memory.dmp
memory/3352-2-0x0000000004E50000-0x0000000004E5A000-memory.dmp
memory/3352-3-0x0000000074BD0000-0x0000000075380000-memory.dmp
memory/3352-4-0x0000000005770000-0x0000000005D14000-memory.dmp
memory/3352-5-0x00000000053C0000-0x0000000005452000-memory.dmp
memory/3352-6-0x00000000050C0000-0x000000000510C000-memory.dmp
memory/3352-7-0x0000000005460000-0x00000000054C6000-memory.dmp
memory/3352-8-0x0000000005750000-0x0000000005758000-memory.dmp
memory/3352-11-0x0000000005F40000-0x0000000005F8E000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 787b41af9d28bb93bb3b8e574f06a4cf |
| SHA1 | 9fca5a5fcbd4c1e38e9b1fa52a6af916c3267cd7 |
| SHA256 | 1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64 |
| SHA512 | 51663df1670c6da11d262e654fb3cd700b10d1fac2398ff900ff7be84673f6120dbe0290d877b9e07adb53633d5118ed29c5f585d2494a445070c4517e80c740 |
memory/3352-23-0x0000000074BD0000-0x0000000075380000-memory.dmp
memory/1464-24-0x0000000074BD0000-0x0000000075380000-memory.dmp
memory/1464-25-0x0000000074BD0000-0x0000000075380000-memory.dmp
memory/1464-26-0x0000000006A10000-0x0000000006BD2000-memory.dmp
memory/1464-27-0x0000000006990000-0x00000000069A0000-memory.dmp
memory/1464-28-0x0000000006F70000-0x0000000006F7A000-memory.dmp
memory/1464-29-0x0000000074BD0000-0x0000000075380000-memory.dmp