Analysis Overview
SHA256
786a9cf7ceaa5f95907624ad42193b1a9581b56eac4689374a68f0cd6069f0f6
Threat Level: Known bad
The file file.exe was found to be: Known bad.
Malicious Activity Summary
Orcus
Orcurs Rat Executable
Orcus main payload
Orcus family
Orcurs Rat Executable
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Drops file in System32 directory
Drops file in Program Files directory
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-08 16:08
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
2024-02-08 16:08
Reported
2024-02-08 16:10
Platform
win7-20231215-en
Max time kernel
120s
Max time network
122s
Command Line
Signatures
Orcus
Orcus main payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Orcurs Rat Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| 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:\Program Files (x86)\gcc\gcc.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\file.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\file.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\file.exe | N/A |
| File created | C:\Windows\SysWOW64\WindowsInput.exe.config | C:\Users\Admin\AppData\Local\Temp\file.exe | N/A |
| File created | C:\Windows\SysWOW64\WindowsInput.InstallState | C:\Windows\SysWOW64\WindowsInput.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\gcc\gcc.exe | C:\Users\Admin\AppData\Local\Temp\file.exe | N/A |
| File opened for modification | C:\Program Files (x86)\gcc\gcc.exe | C:\Users\Admin\AppData\Local\Temp\file.exe | N/A |
| File created | C:\Program Files (x86)\gcc\gcc.exe.config | C:\Users\Admin\AppData\Local\Temp\file.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2228 wrote to memory of 2464 | N/A | C:\Users\Admin\AppData\Local\Temp\file.exe | C:\Windows\SysWOW64\WindowsInput.exe |
| PID 2228 wrote to memory of 2464 | N/A | C:\Users\Admin\AppData\Local\Temp\file.exe | C:\Windows\SysWOW64\WindowsInput.exe |
| PID 2228 wrote to memory of 2464 | N/A | C:\Users\Admin\AppData\Local\Temp\file.exe | C:\Windows\SysWOW64\WindowsInput.exe |
| PID 2228 wrote to memory of 2464 | N/A | C:\Users\Admin\AppData\Local\Temp\file.exe | C:\Windows\SysWOW64\WindowsInput.exe |
| PID 2228 wrote to memory of 2844 | N/A | C:\Users\Admin\AppData\Local\Temp\file.exe | C:\Program Files (x86)\gcc\gcc.exe |
| PID 2228 wrote to memory of 2844 | N/A | C:\Users\Admin\AppData\Local\Temp\file.exe | C:\Program Files (x86)\gcc\gcc.exe |
| PID 2228 wrote to memory of 2844 | N/A | C:\Users\Admin\AppData\Local\Temp\file.exe | C:\Program Files (x86)\gcc\gcc.exe |
| PID 2228 wrote to memory of 2844 | N/A | C:\Users\Admin\AppData\Local\Temp\file.exe | C:\Program Files (x86)\gcc\gcc.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe" --install
C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
C:\Program Files (x86)\gcc\gcc.exe
"C:\Program Files (x86)\gcc\gcc.exe"
Network
Files
memory/2228-1-0x0000000074550000-0x0000000074C3E000-memory.dmp
memory/2228-0-0x00000000002A0000-0x000000000038A000-memory.dmp
memory/2228-2-0x0000000004A00000-0x0000000004A40000-memory.dmp
memory/2228-3-0x00000000004E0000-0x00000000004EE000-memory.dmp
memory/2228-4-0x0000000002040000-0x000000000209C000-memory.dmp
memory/2228-5-0x00000000005F0000-0x0000000000602000-memory.dmp
\Windows\SysWOW64\WindowsInput.exe
| MD5 | e6fcf516d8ed8d0d4427f86e08d0d435 |
| SHA1 | c7691731583ab7890086635cb7f3e4c22ca5e409 |
| SHA256 | 8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337 |
| SHA512 | c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e |
C:\Windows\SysWOW64\WindowsInput.exe.config
| MD5 | a2b76cea3a59fa9af5ea21ff68139c98 |
| SHA1 | 35d76475e6a54c168f536e30206578babff58274 |
| SHA256 | f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839 |
| SHA512 | b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad |
memory/2464-14-0x0000000000A60000-0x0000000000A6C000-memory.dmp
memory/2464-15-0x000007FEF5760000-0x000007FEF614C000-memory.dmp
memory/2464-16-0x000000001B1A0000-0x000000001B220000-memory.dmp
memory/2464-19-0x000007FEF5760000-0x000007FEF614C000-memory.dmp
memory/2864-21-0x00000000002D0000-0x00000000002DC000-memory.dmp
memory/2864-22-0x000007FEF4D70000-0x000007FEF575C000-memory.dmp
\Program Files (x86)\gcc\gcc.exe
| MD5 | c9b1f9e57bf2dbc30e4fa277ce690be0 |
| SHA1 | 08db2e77e4631ba758988b9ece9c44ec7531a9ea |
| SHA256 | 786a9cf7ceaa5f95907624ad42193b1a9581b56eac4689374a68f0cd6069f0f6 |
| SHA512 | a0497f8e06674749c7d9ff875c1f2fd6b0398328393304bc07883cb63f65af5460cb8966e62917a72c09b3b4f57c060e27f93615bac3c2d898ddc0ffb1ae86f0 |
memory/2844-33-0x0000000000E10000-0x0000000000EFA000-memory.dmp
memory/2844-35-0x0000000074550000-0x0000000074C3E000-memory.dmp
memory/2228-34-0x0000000074550000-0x0000000074C3E000-memory.dmp
memory/2844-36-0x0000000004BF0000-0x0000000004C30000-memory.dmp
memory/2844-37-0x0000000074550000-0x0000000074C3E000-memory.dmp
memory/2864-38-0x000007FEF4D70000-0x000007FEF575C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-08 16:08
Reported
2024-02-08 16:10
Platform
win10v2004-20231215-en
Max time kernel
141s
Max time network
145s
Command Line
Signatures
Orcus
Orcus main payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Orcurs Rat Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\file.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:\Windows\SysWOW64\WindowsInput.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\gcc\gcc.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\file.exe | N/A |
| File created | C:\Windows\SysWOW64\WindowsInput.exe.config | C:\Users\Admin\AppData\Local\Temp\file.exe | N/A |
| File created | C:\Windows\SysWOW64\WindowsInput.InstallState | C:\Windows\SysWOW64\WindowsInput.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\gcc\gcc.exe | C:\Users\Admin\AppData\Local\Temp\file.exe | N/A |
| File opened for modification | C:\Program Files (x86)\gcc\gcc.exe | C:\Users\Admin\AppData\Local\Temp\file.exe | N/A |
| File created | C:\Program Files (x86)\gcc\gcc.exe.config | C:\Users\Admin\AppData\Local\Temp\file.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 976 wrote to memory of 4992 | N/A | C:\Users\Admin\AppData\Local\Temp\file.exe | C:\Windows\SysWOW64\WindowsInput.exe |
| PID 976 wrote to memory of 4992 | N/A | C:\Users\Admin\AppData\Local\Temp\file.exe | C:\Windows\SysWOW64\WindowsInput.exe |
| PID 976 wrote to memory of 4432 | N/A | C:\Users\Admin\AppData\Local\Temp\file.exe | C:\Program Files (x86)\gcc\gcc.exe |
| PID 976 wrote to memory of 4432 | N/A | C:\Users\Admin\AppData\Local\Temp\file.exe | C:\Program Files (x86)\gcc\gcc.exe |
| PID 976 wrote to memory of 4432 | N/A | C:\Users\Admin\AppData\Local\Temp\file.exe | C:\Program Files (x86)\gcc\gcc.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe" --install
C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
C:\Program Files (x86)\gcc\gcc.exe
"C:\Program Files (x86)\gcc\gcc.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 81.171.91.138.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 176.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 185.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 193.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.80.50.20.in-addr.arpa | udp |
Files
memory/976-0-0x0000000074F40000-0x00000000756F0000-memory.dmp
memory/976-1-0x0000000000470000-0x000000000055A000-memory.dmp
memory/976-2-0x0000000004F70000-0x0000000004F80000-memory.dmp
memory/976-3-0x0000000004E40000-0x0000000004E4E000-memory.dmp
memory/976-4-0x0000000004F10000-0x0000000004F6C000-memory.dmp
memory/976-5-0x0000000005530000-0x0000000005AD4000-memory.dmp
memory/976-6-0x0000000005070000-0x0000000005102000-memory.dmp
memory/976-7-0x0000000005050000-0x0000000005062000-memory.dmp
memory/976-8-0x00000000054C0000-0x00000000054E2000-memory.dmp
C:\Windows\SysWOW64\WindowsInput.exe
| MD5 | e6fcf516d8ed8d0d4427f86e08d0d435 |
| SHA1 | c7691731583ab7890086635cb7f3e4c22ca5e409 |
| SHA256 | 8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337 |
| SHA512 | c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e |
C:\Windows\SysWOW64\WindowsInput.exe.config
| MD5 | a2b76cea3a59fa9af5ea21ff68139c98 |
| SHA1 | 35d76475e6a54c168f536e30206578babff58274 |
| SHA256 | f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839 |
| SHA512 | b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad |
memory/4992-22-0x00000000002D0000-0x00000000002DC000-memory.dmp
memory/4992-23-0x00007FFE26000000-0x00007FFE26AC1000-memory.dmp
memory/4992-24-0x000000001AF50000-0x000000001AF60000-memory.dmp
memory/4992-25-0x0000000000AC0000-0x0000000000AD2000-memory.dmp
memory/4992-26-0x000000001ADF0000-0x000000001AE2C000-memory.dmp
memory/4992-30-0x00007FFE26000000-0x00007FFE26AC1000-memory.dmp
memory/4420-32-0x00007FFE26000000-0x00007FFE26AC1000-memory.dmp
memory/4420-33-0x0000000019B80000-0x0000000019B90000-memory.dmp
memory/4420-34-0x0000000019FA0000-0x000000001A0AA000-memory.dmp
C:\Program Files (x86)\gcc\gcc.exe
| MD5 | c9b1f9e57bf2dbc30e4fa277ce690be0 |
| SHA1 | 08db2e77e4631ba758988b9ece9c44ec7531a9ea |
| SHA256 | 786a9cf7ceaa5f95907624ad42193b1a9581b56eac4689374a68f0cd6069f0f6 |
| SHA512 | a0497f8e06674749c7d9ff875c1f2fd6b0398328393304bc07883cb63f65af5460cb8966e62917a72c09b3b4f57c060e27f93615bac3c2d898ddc0ffb1ae86f0 |
C:\Program Files (x86)\gcc\gcc.exe
| MD5 | 03f5e1f51a403f1bc55f972dd41d25e8 |
| SHA1 | ea9a2b847d86f5b7ffe5fc5bb314b73f5d2437f4 |
| SHA256 | a63c391ed152fdd4ba39af6bafafd8dcc4c6d8f072147d1e8401ec6775f74e4b |
| SHA512 | 2182ca42769aa3ac428d2fd001a81730e26ff6da5f5277cb3e157c0130b91eb75fe93c8c0882a38a9bb0ba0f71470fcd3c761038b5fe7bb32abc8edca30a8e43 |
memory/976-50-0x0000000074F40000-0x00000000756F0000-memory.dmp
memory/4432-51-0x0000000074F40000-0x00000000756F0000-memory.dmp
memory/4432-52-0x00000000053B0000-0x00000000053C0000-memory.dmp
memory/4432-53-0x00000000051A0000-0x00000000051B2000-memory.dmp
memory/4432-55-0x0000000074F40000-0x00000000756F0000-memory.dmp
memory/4420-56-0x00007FFE26000000-0x00007FFE26AC1000-memory.dmp
memory/4420-57-0x0000000019B80000-0x0000000019B90000-memory.dmp