Analysis Overview
SHA256
87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749
Threat Level: Known bad
The file 87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749 was found to be: Known bad.
Malicious Activity Summary
Orcus
Orcus family
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
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
2025-01-26 01:08
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 01:08
Reported
2025-01-26 01:11
Platform
win7-20240903-en
Max time kernel
147s
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\87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.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\87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.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 2380 wrote to memory of 2204 | N/A | C:\Users\Admin\AppData\Local\Temp\87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2380 wrote to memory of 2204 | N/A | C:\Users\Admin\AppData\Local\Temp\87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2380 wrote to memory of 2204 | N/A | C:\Users\Admin\AppData\Local\Temp\87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2380 wrote to memory of 2204 | N/A | C:\Users\Admin\AppData\Local\Temp\87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.exe
"C:\Users\Admin\AppData\Local\Temp\87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.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 | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp |
Files
memory/2380-0-0x0000000073F2E000-0x0000000073F2F000-memory.dmp
memory/2380-1-0x0000000000CF0000-0x0000000000DC8000-memory.dmp
memory/2380-2-0x0000000000470000-0x000000000047A000-memory.dmp
memory/2380-3-0x0000000073F20000-0x000000007460E000-memory.dmp
memory/2380-4-0x00000000005A0000-0x00000000005EC000-memory.dmp
memory/2380-7-0x0000000000A40000-0x0000000000A8E000-memory.dmp
\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | cc0ca06bc879d94a1bc1451e9860f2b9 |
| SHA1 | 1615869c3399c5427b9224624136de161befe936 |
| SHA256 | 87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749 |
| SHA512 | ccba95edc93a19898c7883ef559de940cb34384601e0f00418cacd144e1f38dd74d3ddc7ff6cc822ccc26f0b95eb0e9a05064bbcc727b7e5c2edb12cd32bfac7 |
memory/2204-15-0x0000000073F20000-0x000000007460E000-memory.dmp
memory/2380-14-0x0000000073F20000-0x000000007460E000-memory.dmp
memory/2204-16-0x0000000000060000-0x0000000000138000-memory.dmp
memory/2204-17-0x0000000073F20000-0x000000007460E000-memory.dmp
memory/2204-18-0x0000000002000000-0x0000000002010000-memory.dmp
memory/2204-19-0x0000000073F20000-0x000000007460E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-26 01:08
Reported
2025-01-26 01:11
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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.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\87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.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 4480 wrote to memory of 1224 | N/A | C:\Users\Admin\AppData\Local\Temp\87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 4480 wrote to memory of 1224 | N/A | C:\Users\Admin\AppData\Local\Temp\87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 4480 wrote to memory of 1224 | N/A | C:\Users\Admin\AppData\Local\Temp\87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.exe
"C:\Users\Admin\AppData\Local\Temp\87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.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 |
| N/A | 127.0.0.1:10135 | tcp | |
| US | 8.8.8.8:53 | 67.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 7.98.51.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| N/A | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp | |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| N/A | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp | |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| N/A | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp | |
| N/A | 127.0.0.1:10135 | tcp |
Files
memory/4480-0-0x00000000744AE000-0x00000000744AF000-memory.dmp
memory/4480-1-0x00000000008C0000-0x0000000000998000-memory.dmp
memory/4480-2-0x0000000001370000-0x000000000137A000-memory.dmp
memory/4480-3-0x00000000744A0000-0x0000000074C50000-memory.dmp
memory/4480-4-0x0000000005860000-0x0000000005E04000-memory.dmp
memory/4480-5-0x00000000056D0000-0x0000000005762000-memory.dmp
memory/4480-6-0x0000000005630000-0x000000000567C000-memory.dmp
memory/4480-9-0x0000000005770000-0x00000000057BE000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | cc0ca06bc879d94a1bc1451e9860f2b9 |
| SHA1 | 1615869c3399c5427b9224624136de161befe936 |
| SHA256 | 87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749 |
| SHA512 | ccba95edc93a19898c7883ef559de940cb34384601e0f00418cacd144e1f38dd74d3ddc7ff6cc822ccc26f0b95eb0e9a05064bbcc727b7e5c2edb12cd32bfac7 |
memory/1224-22-0x00000000744A0000-0x0000000074C50000-memory.dmp
memory/4480-21-0x00000000744A0000-0x0000000074C50000-memory.dmp
memory/1224-23-0x00000000744A0000-0x0000000074C50000-memory.dmp
memory/1224-24-0x0000000005DE0000-0x0000000005FA2000-memory.dmp
memory/1224-25-0x00000000055A0000-0x00000000055B0000-memory.dmp
memory/1224-26-0x0000000005D60000-0x0000000005D6A000-memory.dmp
memory/1224-27-0x00000000744A0000-0x0000000074C50000-memory.dmp