Analysis Overview
SHA256
7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556
Threat Level: Known bad
The file 7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556 was found to be: Known bad.
Malicious Activity Summary
Orcus family
Orcus
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Drops desktop.ini file(s)
Drops file in System32 directory
Drops file in Windows directory
System Location Discovery: System Language Discovery
Unsigned PE
Enumerates physical storage devices
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SendNotifyMessage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-14 01:36
Signatures
Orcus family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-01-14 01:36
Reported
2025-01-14 01:38
Platform
win7-20240903-en
Max time kernel
147s
Max time network
147s
Command Line
Signatures
Orcus
Orcus family
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WindowsInput.exe | N/A |
| 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\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\WindowsInput.exe | C:\Users\Admin\AppData\Local\Temp\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\WindowsInput.InstallLog | C:\Windows\SysWOW64\WindowsInput.exe | N/A |
| File created | C:\Windows\SysWOW64\WindowsInput.InstallState | C:\Windows\SysWOW64\WindowsInput.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\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.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 FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.exe
"C:\Users\Admin\AppData\Local\Temp\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.exe"
C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe" --install
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 | 192.168.1.66:4343 | tcp | |
| N/A | 192.168.1.66:4343 | tcp | |
| N/A | 192.168.1.66:4343 | tcp | |
| N/A | 192.168.1.66:4343 | tcp | |
| N/A | 192.168.1.66:4343 | tcp | |
| N/A | 192.168.1.66:4343 | tcp | |
| N/A | 192.168.1.66:4343 | tcp | |
| N/A | 192.168.1.66:4343 | tcp | |
| N/A | 192.168.1.66:4343 | tcp | |
| N/A | 192.168.1.66:4343 | tcp | |
| N/A | 192.168.1.66:4343 | tcp | |
| N/A | 192.168.1.66:4343 | tcp |
Files
memory/2660-0-0x0000000074971000-0x0000000074972000-memory.dmp
memory/2660-1-0x0000000074970000-0x0000000074F1B000-memory.dmp
memory/2660-2-0x0000000074970000-0x0000000074F1B000-memory.dmp
\Windows\SysWOW64\WindowsInput.exe
| MD5 | e854a4636afc652b320e12e50ba4080e |
| SHA1 | 8a4ac6ecc22ee5f3a8ec846d38b41ff18c641fdc |
| SHA256 | 94b9c78c6fa2bf61fba20a08ad4563f7dd2f5668c28eff227965ce0a2032d5d5 |
| SHA512 | 30aabd5079b6ed0948eb70fd18e9166096e4ba5d1d47fc35b7270f931d19bbe6cd929b6010f70297bf5272dc5a79e2523721354d211c4080d68ad8d17e316118 |
memory/2780-9-0x000007FEF5A5E000-0x000007FEF5A5F000-memory.dmp
C:\Windows\SysWOW64\WindowsInput.InstallLog
| MD5 | e469dda91ae810a1f94c96060f3f8a65 |
| SHA1 | 0b4b3b0f6f937016b1e045ce5313ee2a65a38630 |
| SHA256 | d42fee8db8eb0e047ca53ad59b1c9bc69fe04993be36fec502e3532371908842 |
| SHA512 | 2eb4037361c03e195c642a53f55a3182a6df19903db503060e366f2394750e64ae04fdaace61ef5a6dba649defc88322d78edd2928bc53ebd1ce11d68cc88dac |
memory/2780-20-0x000007FEF57A0000-0x000007FEF613D000-memory.dmp
memory/2780-21-0x000007FEF57A0000-0x000007FEF613D000-memory.dmp
C:\Windows\SysWOW64\WindowsInput.InstallLog
| MD5 | c2291863df7c2d3038ce3c22fa276506 |
| SHA1 | 7b7d2bc07a6c35523807342c747c9b6a19f3184e |
| SHA256 | 14504199bede3f46129969dbd2b7680f2e5b7fcd73a3e427ce1bb6217a6d13da |
| SHA512 | 00bf40174a67e3e663d18a887c5b461a1e5ead0b27f0a139d87969158c58f4ca72cfa5a731dda239356192ca4cb5ac6ae2b0e37401d534e686cabacd3cbee8fa |
memory/2780-36-0x000007FEF57A0000-0x000007FEF613D000-memory.dmp
\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 9ca8ffb944c7a5443fbb9800ed11a484 |
| SHA1 | 5e614a52fa25eb83b62fe2703e74c2efe913e63b |
| SHA256 | 7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556 |
| SHA512 | 4eb9b7f26effef2f2e35d83fa2cbe2e517c00ce8d61aad4fd3d76bf1cdfaa8fe65ad93d6a104af78224b97a49a0c30ccc1224de0b836015a4850d7a96a4049d3 |
memory/2660-45-0x0000000074970000-0x0000000074F1B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-14 01:36
Reported
2025-01-14 01:38
Platform
win10v2004-20241007-en
Max time kernel
148s
Max time network
151s
Command Line
Signatures
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\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WindowsInput.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Drops desktop.ini file(s)
| Description | Indicator | Process | Target |
| File created | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\WindowsInput.exe | C:\Users\Admin\AppData\Local\Temp\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\WindowsInput.InstallLog | C:\Windows\SysWOW64\WindowsInput.exe | N/A |
| File created | C:\Windows\SysWOW64\WindowsInput.InstallState | C:\Windows\SysWOW64\WindowsInput.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\assembly | C:\Users\Admin\AppData\Local\Temp\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.exe | N/A |
| File created | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.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\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.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 FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 212 wrote to memory of 2736 | N/A | C:\Users\Admin\AppData\Local\Temp\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.exe | C:\Windows\SysWOW64\WindowsInput.exe |
| PID 212 wrote to memory of 2736 | N/A | C:\Users\Admin\AppData\Local\Temp\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.exe | C:\Windows\SysWOW64\WindowsInput.exe |
| PID 212 wrote to memory of 3812 | N/A | C:\Users\Admin\AppData\Local\Temp\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 212 wrote to memory of 3812 | N/A | C:\Users\Admin\AppData\Local\Temp\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 212 wrote to memory of 3812 | N/A | C:\Users\Admin\AppData\Local\Temp\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.exe
"C:\Users\Admin\AppData\Local\Temp\7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556.exe"
C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe" --install
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 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 167.173.78.104.in-addr.arpa | udp |
| N/A | 192.168.1.66:4343 | tcp | |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| N/A | 192.168.1.66:4343 | tcp | |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| N/A | 192.168.1.66:4343 | tcp | |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 107.12.20.2.in-addr.arpa | udp |
| N/A | 192.168.1.66:4343 | tcp | |
| N/A | 192.168.1.66:4343 | tcp | |
| N/A | 192.168.1.66:4343 | tcp | |
| N/A | 192.168.1.66:4343 | tcp | |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| N/A | 192.168.1.66:4343 | tcp | |
| N/A | 192.168.1.66:4343 | tcp | |
| N/A | 192.168.1.66:4343 | tcp | |
| N/A | 192.168.1.66:4343 | tcp | |
| N/A | 192.168.1.66:4343 | tcp |
Files
memory/212-0-0x0000000074DE2000-0x0000000074DE3000-memory.dmp
memory/212-1-0x0000000074DE0000-0x0000000075391000-memory.dmp
memory/212-2-0x0000000074DE0000-0x0000000075391000-memory.dmp
C:\Windows\SysWOW64\WindowsInput.exe
| MD5 | e854a4636afc652b320e12e50ba4080e |
| SHA1 | 8a4ac6ecc22ee5f3a8ec846d38b41ff18c641fdc |
| SHA256 | 94b9c78c6fa2bf61fba20a08ad4563f7dd2f5668c28eff227965ce0a2032d5d5 |
| SHA512 | 30aabd5079b6ed0948eb70fd18e9166096e4ba5d1d47fc35b7270f931d19bbe6cd929b6010f70297bf5272dc5a79e2523721354d211c4080d68ad8d17e316118 |
memory/2736-16-0x00007FF94BF15000-0x00007FF94BF16000-memory.dmp
memory/2736-18-0x000000001B2F0000-0x000000001B310000-memory.dmp
memory/2736-17-0x0000000000CB0000-0x0000000000CC8000-memory.dmp
memory/2736-19-0x00007FF94BC60000-0x00007FF94C601000-memory.dmp
memory/2736-20-0x00007FF94BC60000-0x00007FF94C601000-memory.dmp
memory/2736-23-0x000000001B5F0000-0x000000001B614000-memory.dmp
C:\Windows\SysWOW64\WindowsInput.InstallLog
| MD5 | e469dda91ae810a1f94c96060f3f8a65 |
| SHA1 | 0b4b3b0f6f937016b1e045ce5313ee2a65a38630 |
| SHA256 | d42fee8db8eb0e047ca53ad59b1c9bc69fe04993be36fec502e3532371908842 |
| SHA512 | 2eb4037361c03e195c642a53f55a3182a6df19903db503060e366f2394750e64ae04fdaace61ef5a6dba649defc88322d78edd2928bc53ebd1ce11d68cc88dac |
memory/2736-31-0x000000001BF50000-0x000000001C41E000-memory.dmp
memory/2736-32-0x000000001C4C0000-0x000000001C55C000-memory.dmp
C:\Windows\SysWOW64\WindowsInput.InstallLog
| MD5 | c2291863df7c2d3038ce3c22fa276506 |
| SHA1 | 7b7d2bc07a6c35523807342c747c9b6a19f3184e |
| SHA256 | 14504199bede3f46129969dbd2b7680f2e5b7fcd73a3e427ce1bb6217a6d13da |
| SHA512 | 00bf40174a67e3e663d18a887c5b461a1e5ead0b27f0a139d87969158c58f4ca72cfa5a731dda239356192ca4cb5ac6ae2b0e37401d534e686cabacd3cbee8fa |
memory/2736-49-0x00007FF94BC60000-0x00007FF94C601000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 9ca8ffb944c7a5443fbb9800ed11a484 |
| SHA1 | 5e614a52fa25eb83b62fe2703e74c2efe913e63b |
| SHA256 | 7961dcac0f9bd2d96056b7a9f605761310d658ca795df93821c1de2e6a056556 |
| SHA512 | 4eb9b7f26effef2f2e35d83fa2cbe2e517c00ce8d61aad4fd3d76bf1cdfaa8fe65ad93d6a104af78224b97a49a0c30ccc1224de0b836015a4850d7a96a4049d3 |
memory/3812-63-0x0000000074DE2000-0x0000000074DE3000-memory.dmp
memory/3812-66-0x0000000074DE0000-0x0000000075391000-memory.dmp
memory/212-65-0x0000000074DE0000-0x0000000075391000-memory.dmp
memory/3812-64-0x0000000074DE0000-0x0000000075391000-memory.dmp
memory/3812-67-0x0000000074DE0000-0x0000000075391000-memory.dmp
memory/3812-68-0x0000000074DE0000-0x0000000075391000-memory.dmp
memory/3812-69-0x0000000074DE2000-0x0000000074DE3000-memory.dmp