Analysis Overview
SHA256
a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908
Threat Level: Known bad
The file a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908 was found to be: Known bad.
Malicious Activity Summary
Orcus family
Orcus
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Unsigned PE
System Location Discovery: System Language Discovery
Enumerates physical storage devices
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 01:15
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 01:15
Reported
2025-01-26 01:18
Platform
win7-20240903-en
Max time kernel
145s
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\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.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\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.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 2244 wrote to memory of 2324 | N/A | C:\Users\Admin\AppData\Local\Temp\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2244 wrote to memory of 2324 | N/A | C:\Users\Admin\AppData\Local\Temp\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2244 wrote to memory of 2324 | N/A | C:\Users\Admin\AppData\Local\Temp\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2244 wrote to memory of 2324 | N/A | C:\Users\Admin\AppData\Local\Temp\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.exe
"C:\Users\Admin\AppData\Local\Temp\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.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 | 192.168.1.42:8888 | tcp | |
| N/A | 192.168.1.42:8888 | tcp | |
| N/A | 192.168.1.42:8888 | tcp | |
| N/A | 192.168.1.42:8888 | tcp | |
| N/A | 192.168.1.42:8888 | tcp | |
| N/A | 192.168.1.42:8888 | tcp | |
| N/A | 192.168.1.42:8888 | tcp | |
| N/A | 192.168.1.42:8888 | tcp | |
| N/A | 192.168.1.42:8888 | tcp | |
| N/A | 192.168.1.42:8888 | tcp | |
| N/A | 192.168.1.42:8888 | tcp | |
| N/A | 192.168.1.42:8888 | tcp |
Files
memory/2244-0-0x0000000074ACE000-0x0000000074ACF000-memory.dmp
memory/2244-1-0x0000000000C10000-0x0000000000CE8000-memory.dmp
memory/2244-2-0x00000000001B0000-0x00000000001BA000-memory.dmp
memory/2244-3-0x0000000074AC0000-0x00000000751AE000-memory.dmp
memory/2244-4-0x0000000000270000-0x00000000002BC000-memory.dmp
memory/2244-7-0x00000000020F0000-0x000000000213E000-memory.dmp
\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 0ff88f2d12dcbab52e70519e4f7c4fdc |
| SHA1 | 8382f9791b597fda7c565a8d82337d904bd5572d |
| SHA256 | a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908 |
| SHA512 | b09f1cc3a90dcae3bd4eefdc4c45433387a5729e38e460d66c66acaab0eaf49b7f5f1f1bfa425d998c5de5dab05f8393d6d990b9f592dc15f012e019dc5075e4 |
memory/2324-15-0x0000000074AC0000-0x00000000751AE000-memory.dmp
memory/2244-14-0x0000000074AC0000-0x00000000751AE000-memory.dmp
memory/2324-16-0x0000000001390000-0x0000000001468000-memory.dmp
memory/2324-17-0x0000000074AC0000-0x00000000751AE000-memory.dmp
memory/2324-18-0x00000000005B0000-0x00000000005C0000-memory.dmp
memory/2324-19-0x0000000074AC0000-0x00000000751AE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-26 01:15
Reported
2025-01-26 01:18
Platform
win10v2004-20241007-en
Max time kernel
148s
Max time network
150s
Command Line
Signatures
Orcus
Orcus family
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.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\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.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 3016 wrote to memory of 3232 | N/A | C:\Users\Admin\AppData\Local\Temp\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 3016 wrote to memory of 3232 | N/A | C:\Users\Admin\AppData\Local\Temp\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 3016 wrote to memory of 3232 | N/A | C:\Users\Admin\AppData\Local\Temp\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.exe
"C:\Users\Admin\AppData\Local\Temp\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.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 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 214.72.21.2.in-addr.arpa | udp |
| N/A | 192.168.1.42:8888 | tcp | |
| US | 8.8.8.8:53 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 7.98.51.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| N/A | 192.168.1.42:8888 | tcp | |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| N/A | 192.168.1.42:8888 | tcp | |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.49.80.91.in-addr.arpa | udp |
| N/A | 192.168.1.42:8888 | tcp | |
| N/A | 192.168.1.42:8888 | tcp | |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| N/A | 192.168.1.42:8888 | tcp | |
| N/A | 192.168.1.42:8888 | tcp | |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| N/A | 192.168.1.42:8888 | tcp | |
| N/A | 192.168.1.42:8888 | tcp | |
| N/A | 192.168.1.42:8888 | tcp | |
| N/A | 192.168.1.42:8888 | tcp | |
| N/A | 192.168.1.42:8888 | tcp |
Files
memory/3016-0-0x0000000074D1E000-0x0000000074D1F000-memory.dmp
memory/3016-1-0x0000000000070000-0x0000000000148000-memory.dmp
memory/3016-2-0x00000000023F0000-0x00000000023FA000-memory.dmp
memory/3016-3-0x0000000074D10000-0x00000000754C0000-memory.dmp
memory/3016-4-0x00000000050C0000-0x0000000005664000-memory.dmp
memory/3016-5-0x0000000004EB0000-0x0000000004F42000-memory.dmp
memory/3016-6-0x0000000004E10000-0x0000000004E5C000-memory.dmp
memory/3016-9-0x0000000004F50000-0x0000000004F9E000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 0ff88f2d12dcbab52e70519e4f7c4fdc |
| SHA1 | 8382f9791b597fda7c565a8d82337d904bd5572d |
| SHA256 | a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908 |
| SHA512 | b09f1cc3a90dcae3bd4eefdc4c45433387a5729e38e460d66c66acaab0eaf49b7f5f1f1bfa425d998c5de5dab05f8393d6d990b9f592dc15f012e019dc5075e4 |
memory/3016-22-0x0000000074D10000-0x00000000754C0000-memory.dmp
memory/3232-21-0x0000000074D10000-0x00000000754C0000-memory.dmp
memory/3232-23-0x0000000074D10000-0x00000000754C0000-memory.dmp
memory/3232-24-0x0000000005AD0000-0x0000000005C92000-memory.dmp
memory/3232-25-0x0000000005480000-0x0000000005490000-memory.dmp
memory/3232-26-0x0000000005F00000-0x0000000005F0A000-memory.dmp
memory/3232-27-0x0000000074D10000-0x00000000754C0000-memory.dmp