Analysis Overview
SHA256
502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753
Threat Level: Known bad
The file 502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753 was found to be: Known bad.
Malicious Activity Summary
Orcus family
Orcus
Loads dropped DLL
Checks computer location settings
Executes dropped EXE
Drops desktop.ini file(s)
Drops file in Windows directory
Unsigned PE
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-27 01:01
Signatures
Orcus family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-01-27 01:01
Reported
2025-01-27 01:04
Platform
win7-20240903-en
Max time kernel
146s
Max time network
147s
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\502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753.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\502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753.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 WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2420 wrote to memory of 2264 | N/A | C:\Users\Admin\AppData\Local\Temp\502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2420 wrote to memory of 2264 | N/A | C:\Users\Admin\AppData\Local\Temp\502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2420 wrote to memory of 2264 | N/A | C:\Users\Admin\AppData\Local\Temp\502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2420 wrote to memory of 2264 | N/A | C:\Users\Admin\AppData\Local\Temp\502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753.exe
"C:\Users\Admin\AppData\Local\Temp\502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753.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 | 192.168.1.66:1604 | tcp | |
| N/A | 192.168.1.66:1604 | tcp | |
| N/A | 192.168.1.66:1604 | tcp | |
| N/A | 192.168.1.66:1604 | tcp | |
| N/A | 192.168.1.66:1604 | tcp | |
| N/A | 192.168.1.66:1604 | tcp | |
| N/A | 192.168.1.66:1604 | tcp | |
| N/A | 192.168.1.66:1604 | tcp | |
| N/A | 192.168.1.66:1604 | tcp | |
| N/A | 192.168.1.66:1604 | tcp | |
| N/A | 192.168.1.66:1604 | tcp | |
| N/A | 192.168.1.66:1604 | tcp |
Files
memory/2420-0-0x0000000074F41000-0x0000000074F42000-memory.dmp
memory/2420-1-0x0000000074F40000-0x00000000754EB000-memory.dmp
memory/2420-2-0x0000000074F40000-0x00000000754EB000-memory.dmp
\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 98a5ba2b1804e05fd8d361429c538d5e |
| SHA1 | ff979f68614cdddf6db17ff574a51153fd6358bd |
| SHA256 | 502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753 |
| SHA512 | ad7ac8fa9511b973dbf5cd691a6d2ebb265e9eeb8549872751d89e8f8f71ca70a8dcc6e5cfa7b678d6cd9ce61096d5536792eb53244eff08ae0ee8fc91b3a478 |
memory/2420-11-0x0000000074F40000-0x00000000754EB000-memory.dmp
memory/2264-13-0x0000000074F40000-0x00000000754EB000-memory.dmp
memory/2264-12-0x0000000074F40000-0x00000000754EB000-memory.dmp
memory/2264-14-0x0000000074F40000-0x00000000754EB000-memory.dmp
memory/2264-15-0x0000000074F40000-0x00000000754EB000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-27 01:01
Reported
2025-01-27 01:04
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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753.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 |
Drops desktop.ini file(s)
| Description | Indicator | Process | Target |
| File created | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753.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\502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753.exe | N/A |
| File created | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753.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\502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753.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 WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4556 wrote to memory of 552 | N/A | C:\Users\Admin\AppData\Local\Temp\502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 4556 wrote to memory of 552 | N/A | C:\Users\Admin\AppData\Local\Temp\502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 4556 wrote to memory of 552 | N/A | C:\Users\Admin\AppData\Local\Temp\502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753.exe
"C:\Users\Admin\AppData\Local\Temp\502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753.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 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| N/A | 192.168.1.66:1604 | tcp | |
| US | 8.8.8.8:53 | 167.173.78.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| N/A | 192.168.1.66:1604 | tcp | |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| N/A | 192.168.1.66:1604 | tcp | |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| N/A | 192.168.1.66:1604 | tcp | |
| N/A | 192.168.1.66:1604 | tcp | |
| N/A | 192.168.1.66:1604 | tcp | |
| N/A | 192.168.1.66:1604 | tcp | |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| N/A | 192.168.1.66:1604 | tcp | |
| N/A | 192.168.1.66:1604 | tcp | |
| N/A | 192.168.1.66:1604 | tcp | |
| N/A | 192.168.1.66:1604 | tcp | |
| N/A | 192.168.1.66:1604 | tcp |
Files
memory/4556-0-0x0000000074B62000-0x0000000074B63000-memory.dmp
memory/4556-1-0x0000000074B60000-0x0000000075111000-memory.dmp
memory/4556-2-0x0000000074B60000-0x0000000075111000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 98a5ba2b1804e05fd8d361429c538d5e |
| SHA1 | ff979f68614cdddf6db17ff574a51153fd6358bd |
| SHA256 | 502302c8b6270b082df08e81c96bde54a220bd6ae2a8ae3b08100529e2a7a753 |
| SHA512 | ad7ac8fa9511b973dbf5cd691a6d2ebb265e9eeb8549872751d89e8f8f71ca70a8dcc6e5cfa7b678d6cd9ce61096d5536792eb53244eff08ae0ee8fc91b3a478 |
memory/552-18-0x0000000074B60000-0x0000000075111000-memory.dmp
memory/552-20-0x0000000074B60000-0x0000000075111000-memory.dmp
memory/4556-19-0x0000000074B60000-0x0000000075111000-memory.dmp
memory/552-21-0x0000000074B60000-0x0000000075111000-memory.dmp
memory/552-22-0x0000000074B60000-0x0000000075111000-memory.dmp