Analysis Overview
SHA256
85d9cae5e66a5a61a367bcd7b7967ed5715fab928604714db8050ccddab5d150
Threat Level: Known bad
The file 30ea58dd6e407d3dda5dc7d21b5126c5 was found to be: Known bad.
Malicious Activity Summary
Orcurs Rat Executable
Orcus family
Orcus main payload
Orcus
Orcurs Rat Executable
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Drops file in System32 directory
Drops file in Windows directory
Unsigned PE
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-31 09:29
Signatures
Orcurs Rat Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Orcus family
Orcus main payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-12-31 09:29
Reported
2024-01-04 02:01
Platform
win7-20231215-en
Max time kernel
157s
Max time network
170s
Command Line
Signatures
Orcus
Orcurs Rat Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | 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:\Windows\SysWOW64\WindowsInput.exe | N/A |
| N/A | N/A | C:\Windows\WindowsWD\svchost.exe | N/A |
| N/A | N/A | C:\Windows\WindowsWD\svchost.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.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\30ea58dd6e407d3dda5dc7d21b5126c5.exe | N/A |
| File created | C:\Windows\SysWOW64\WindowsInput.exe.config | C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.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 created | C:\Windows\WindowsWD\svchost.exe | C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe | N/A |
| File opened for modification | C:\Windows\WindowsWD\svchost.exe | C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe | N/A |
| File created | C:\Windows\WindowsWD\svchost.exe.config | C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe | N/A |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\WindowsWD\svchost.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\WindowsWD\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe
"C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe"
C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe" --install
C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
C:\Windows\WindowsWD\svchost.exe
"C:\Windows\WindowsWD\svchost.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {4639323D-565F-4994-AB9B-FCC638030042} S-1-5-21-928733405-3780110381-2966456290-1000:VTILVGXH\Admin:Interactive:[1]
C:\Windows\WindowsWD\svchost.exe
C:\Windows\WindowsWD\svchost.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | orcustop4ik.duckdns.org | udp |
| RU | 77.50.81.90:777 | orcustop4ik.duckdns.org | tcp |
| RU | 77.50.81.90:777 | orcustop4ik.duckdns.org | tcp |
| RU | 77.50.81.90:777 | orcustop4ik.duckdns.org | tcp |
| RU | 77.50.81.90:777 | orcustop4ik.duckdns.org | tcp |
| RU | 77.50.81.90:777 | orcustop4ik.duckdns.org | tcp |
| US | 8.8.8.8:53 | orcustop4ik.duckdns.org | udp |
| RU | 77.50.81.90:777 | orcustop4ik.duckdns.org | tcp |
| RU | 77.50.81.90:777 | orcustop4ik.duckdns.org | tcp |
| RU | 77.50.81.90:777 | orcustop4ik.duckdns.org | tcp |
| US | 8.8.8.8:53 | orcustop4ik.duckdns.org | udp |
| RU | 77.50.81.90:777 | orcustop4ik.duckdns.org | tcp |
| RU | 77.50.81.90:777 | orcustop4ik.duckdns.org | tcp |
| RU | 77.50.81.90:777 | orcustop4ik.duckdns.org | tcp |
Files
memory/2380-0-0x0000000001100000-0x00000000011EA000-memory.dmp
memory/2380-1-0x00000000749D0000-0x00000000750BE000-memory.dmp
memory/2380-2-0x0000000004A00000-0x0000000004A40000-memory.dmp
memory/2380-3-0x0000000000400000-0x000000000040E000-memory.dmp
memory/2380-4-0x0000000000C20000-0x0000000000C7C000-memory.dmp
memory/2380-5-0x0000000000930000-0x0000000000942000-memory.dmp
memory/2652-14-0x0000000001250000-0x000000000125C000-memory.dmp
memory/2652-15-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp
memory/2652-16-0x00000000011D0000-0x0000000001250000-memory.dmp
memory/2652-19-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp
memory/1792-21-0x000007FEF50C0000-0x000007FEF5AAC000-memory.dmp
memory/1792-22-0x0000000019280000-0x0000000019300000-memory.dmp
memory/2380-34-0x00000000749D0000-0x00000000750BE000-memory.dmp
memory/2196-36-0x00000000049F0000-0x0000000004A30000-memory.dmp
memory/2196-37-0x0000000004250000-0x000000000429E000-memory.dmp
memory/2196-35-0x00000000749D0000-0x00000000750BE000-memory.dmp
memory/2196-33-0x0000000000070000-0x000000000015A000-memory.dmp
memory/2196-38-0x0000000002110000-0x0000000002128000-memory.dmp
memory/2196-39-0x00000000042A0000-0x00000000042B0000-memory.dmp
memory/1060-41-0x00000000749D0000-0x00000000750BE000-memory.dmp
memory/2196-44-0x00000000049F0000-0x0000000004A30000-memory.dmp
memory/2196-43-0x00000000049F0000-0x0000000004A30000-memory.dmp
memory/1060-42-0x0000000000590000-0x00000000005D0000-memory.dmp
memory/1060-45-0x00000000749D0000-0x00000000750BE000-memory.dmp
memory/1792-46-0x000007FEF50C0000-0x000007FEF5AAC000-memory.dmp
memory/2196-47-0x00000000749D0000-0x00000000750BE000-memory.dmp
memory/1792-48-0x0000000019280000-0x0000000019300000-memory.dmp
memory/2196-49-0x00000000049F0000-0x0000000004A30000-memory.dmp
memory/2196-51-0x00000000049F0000-0x0000000004A30000-memory.dmp
memory/2196-50-0x00000000049F0000-0x0000000004A30000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-12-31 09:29
Reported
2024-01-04 02:01
Platform
win10v2004-20231222-en
Max time kernel
1s
Max time network
122s
Command Line
Signatures
Orcus
Orcurs Rat Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WindowsInput.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\30ea58dd6e407d3dda5dc7d21b5126c5.exe | N/A |
| File created | C:\Windows\SysWOW64\WindowsInput.exe.config | C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 444 wrote to memory of 384 | N/A | C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe | C:\Windows\SysWOW64\WindowsInput.exe |
| PID 444 wrote to memory of 384 | N/A | C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe | C:\Windows\SysWOW64\WindowsInput.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe
"C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe"
C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe" --install
C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
C:\Windows\WindowsWD\svchost.exe
C:\Windows\WindowsWD\svchost.exe
C:\Windows\WindowsWD\svchost.exe
"C:\Windows\WindowsWD\svchost.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 83.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.136.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | orcustop4ik.duckdns.org | udp |
| US | 8.8.8.8:53 | udp | |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| RU | 77.50.81.90:777 | orcustop4ik.duckdns.org | tcp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| RU | 77.50.81.90:777 | orcustop4ik.duckdns.org | tcp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| RU | 77.50.81.90:777 | orcustop4ik.duckdns.org | tcp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| RU | 77.50.81.90:777 | orcustop4ik.duckdns.org | tcp |
| RU | 77.50.81.90:777 | orcustop4ik.duckdns.org | tcp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.241.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | orcustop4ik.duckdns.org | udp |
| RU | 77.50.81.90:777 | orcustop4ik.duckdns.org | tcp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 176.178.17.96.in-addr.arpa | udp |
| RU | 77.50.81.90:777 | orcustop4ik.duckdns.org | tcp |
| US | 8.8.8.8:53 | 59.134.221.88.in-addr.arpa | udp |
| IE | 52.111.236.21:443 | tcp | |
| US | 138.91.171.81:80 | tcp | |
| RU | 77.50.81.90:777 | orcustop4ik.duckdns.org | tcp |
| US | 204.79.197.200:443 | tcp | |
| RU | 77.50.81.90:777 | orcustop4ik.duckdns.org | tcp |
Files
memory/444-1-0x00000000749E0000-0x0000000075190000-memory.dmp
memory/444-2-0x00000000053B0000-0x00000000053C0000-memory.dmp
memory/444-3-0x0000000005370000-0x000000000537E000-memory.dmp
memory/444-4-0x0000000005440000-0x000000000549C000-memory.dmp
memory/444-5-0x0000000005A50000-0x0000000005FF4000-memory.dmp
memory/444-6-0x00000000055A0000-0x0000000005632000-memory.dmp
memory/444-0-0x00000000009A0000-0x0000000000A8A000-memory.dmp
memory/444-8-0x00000000059F0000-0x0000000005A12000-memory.dmp
memory/444-7-0x0000000005580000-0x0000000005592000-memory.dmp
memory/384-22-0x0000000000350000-0x000000000035C000-memory.dmp
memory/384-23-0x0000000002620000-0x0000000002632000-memory.dmp
memory/384-26-0x000000001B010000-0x000000001B020000-memory.dmp
memory/384-25-0x0000000002680000-0x00000000026BC000-memory.dmp
memory/384-24-0x00007FFE7D750000-0x00007FFE7E211000-memory.dmp
memory/2860-32-0x00007FFE7D750000-0x00007FFE7E211000-memory.dmp
memory/2860-33-0x0000000001250000-0x0000000001260000-memory.dmp
memory/384-30-0x00007FFE7D750000-0x00007FFE7E211000-memory.dmp
memory/2860-34-0x000000001AA90000-0x000000001AB9A000-memory.dmp
memory/2648-51-0x00000000749E0000-0x0000000075190000-memory.dmp
memory/444-50-0x00000000749E0000-0x0000000075190000-memory.dmp
memory/2648-53-0x00000000057F0000-0x0000000005808000-memory.dmp
memory/2648-52-0x0000000005780000-0x00000000057CE000-memory.dmp
memory/2648-55-0x0000000006150000-0x0000000006168000-memory.dmp
memory/2648-58-0x00000000064F0000-0x00000000066B2000-memory.dmp
memory/3448-57-0x00000000749E0000-0x0000000075190000-memory.dmp
memory/2648-56-0x0000000006310000-0x0000000006320000-memory.dmp
memory/2648-59-0x0000000006900000-0x000000000690A000-memory.dmp
memory/3448-61-0x00000000749E0000-0x0000000075190000-memory.dmp
memory/2860-62-0x00007FFE7D750000-0x00007FFE7E211000-memory.dmp
memory/2860-63-0x0000000001250000-0x0000000001260000-memory.dmp
memory/2648-64-0x00000000749E0000-0x0000000075190000-memory.dmp