Analysis Overview
SHA256
b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d
Threat Level: Known bad
The file b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d was found to be: Known bad.
Malicious Activity Summary
Orcurs Rat Executable
Orcus family
Orcus
Orcurs Rat Executable
Checks computer location settings
Executes dropped EXE
Drops file in Program Files directory
Enumerates physical storage devices
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-18 01:42
Signatures
Orcurs Rat Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Orcus family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2023-12-18 01:42
Reported
2023-12-18 01:45
Platform
win10v2004-20231215-en
Max time kernel
141s
Max time network
149s
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 |
| 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\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Orcus\Orcus.exe | N/A |
| N/A | N/A | C:\Program Files\Orcus\Orcus.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files\Orcus\Orcus.exe | C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe | N/A |
| File opened for modification | C:\Program Files\Orcus\Orcus.exe | C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe | N/A |
| File created | C:\Program Files\Orcus\Orcus.exe.config | C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe | N/A |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Program Files\Orcus\Orcus.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3632 wrote to memory of 2332 | N/A | C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe | C:\Program Files\Orcus\Orcus.exe |
| PID 3632 wrote to memory of 2332 | N/A | C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe | C:\Program Files\Orcus\Orcus.exe |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe
"C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe"
C:\Program Files\Orcus\Orcus.exe
"C:\Program Files\Orcus\Orcus.exe"
C:\Program Files\Orcus\Orcus.exe
"C:\Program Files\Orcus\Orcus.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 22.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| N/A | 192.168.1.95:10134 | tcp | |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | following-s.gl.at.ply.gg | udp |
| US | 147.185.221.17:46267 | following-s.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 17.221.185.147.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 138.91.171.81:80 | tcp | |
| US | 8.8.8.8:53 | 178.223.142.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 204.201.50.20.in-addr.arpa | udp |
Files
memory/3632-0-0x0000027E87E60000-0x0000027E88158000-memory.dmp
memory/3632-1-0x0000027EA2650000-0x0000027EA26AC000-memory.dmp
memory/3632-3-0x0000027E89F40000-0x0000027E89F4E000-memory.dmp
memory/3632-2-0x00007FFEBD1C0000-0x00007FFEBDC81000-memory.dmp
memory/3632-4-0x0000027E89F50000-0x0000027E89F60000-memory.dmp
memory/3632-5-0x0000027EA26C0000-0x0000027EA26D2000-memory.dmp
C:\Program Files\Orcus\Orcus.exe
| MD5 | 46490216fdf0efff1bc81e431a1fa7e4 |
| SHA1 | 563eef6b45ecd75c8bb72c5e41bb536a2f59f57f |
| SHA256 | b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d |
| SHA512 | c2b864efffeb5389a5877b8e03108de7f613e933871e412e9b1ba09bb512f8bbbcaa1e8c8ba249dacb2d70fa5ca618abe3e02ab64f146ae6f98fc434348a5b4c |
C:\Program Files\Orcus\Orcus.exe.config
| MD5 | a2b76cea3a59fa9af5ea21ff68139c98 |
| SHA1 | 35d76475e6a54c168f536e30206578babff58274 |
| SHA256 | f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839 |
| SHA512 | b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad |
C:\Program Files\Orcus\Orcus.exe
| MD5 | 2a1d73da658f40ea9e0b6fa3bd4a63fa |
| SHA1 | 3b61ba5713e9cbf38bc764d7361050f9a162beb9 |
| SHA256 | a7ffe644a1606e290d50fb8d19ba34f14b9bbe8d890c3e856202fc693c07e5b3 |
| SHA512 | 4fcfa419e65c0f45bb4b3766b21b6edc88cd78b98bebdaa20d681a985c0c960f00ac5ecad3814029b5fee4c13321fe09acc380f406aae265347142dd97961bf1 |
memory/3632-22-0x00007FFEBD1C0000-0x00007FFEBDC81000-memory.dmp
memory/2332-21-0x00007FFEBD1C0000-0x00007FFEBDC81000-memory.dmp
memory/2332-23-0x0000028667120000-0x0000028667130000-memory.dmp
memory/2332-24-0x0000028669220000-0x0000028669278000-memory.dmp
memory/2332-26-0x0000028667150000-0x0000028667168000-memory.dmp
memory/4028-27-0x00007FFEBD1C0000-0x00007FFEBDC81000-memory.dmp
memory/2332-28-0x0000028667310000-0x0000028667320000-memory.dmp
memory/4028-29-0x00000189F7500000-0x00000189F7510000-memory.dmp
memory/4028-31-0x00007FFEBD1C0000-0x00007FFEBDC81000-memory.dmp
memory/2332-32-0x00007FFEBD1C0000-0x00007FFEBDC81000-memory.dmp
memory/2332-33-0x0000028667120000-0x0000028667130000-memory.dmp
memory/2332-34-0x0000028669B00000-0x0000028669B12000-memory.dmp
memory/2332-35-0x0000028669B60000-0x0000028669B9C000-memory.dmp
memory/2332-36-0x0000028669CB0000-0x0000028669DBA000-memory.dmp
memory/2332-37-0x0000028669F90000-0x000002866A152000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2023-12-18 01:42
Reported
2023-12-18 01:45
Platform
win7-20231215-en
Max time kernel
121s
Max time network
139s
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 |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Orcus\Orcus.exe | N/A |
| N/A | N/A | C:\Program Files\Orcus\Orcus.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files\Orcus\Orcus.exe | C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe | N/A |
| File opened for modification | C:\Program Files\Orcus\Orcus.exe | C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe | N/A |
| File created | C:\Program Files\Orcus\Orcus.exe.config | C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe | N/A |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Program Files\Orcus\Orcus.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1088 wrote to memory of 2692 | N/A | C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe | C:\Program Files\Orcus\Orcus.exe |
| PID 1088 wrote to memory of 2692 | N/A | C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe | C:\Program Files\Orcus\Orcus.exe |
| PID 1088 wrote to memory of 2692 | N/A | C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe | C:\Program Files\Orcus\Orcus.exe |
| PID 2300 wrote to memory of 2584 | N/A | C:\Windows\system32\taskeng.exe | C:\Program Files\Orcus\Orcus.exe |
| PID 2300 wrote to memory of 2584 | N/A | C:\Windows\system32\taskeng.exe | C:\Program Files\Orcus\Orcus.exe |
| PID 2300 wrote to memory of 2584 | N/A | C:\Windows\system32\taskeng.exe | C:\Program Files\Orcus\Orcus.exe |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe
"C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe"
C:\Program Files\Orcus\Orcus.exe
"C:\Program Files\Orcus\Orcus.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {0B68E1E9-9630-4844-BF21-FD3BCA4D234B} S-1-5-21-3308111660-3636268597-2291490419-1000:JUBFGPHD\Admin:Interactive:[1]
C:\Program Files\Orcus\Orcus.exe
"C:\Program Files\Orcus\Orcus.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 192.168.1.95:10134 | tcp | |
| US | 8.8.8.8:53 | following-s.gl.at.ply.gg | udp |
| US | 147.185.221.17:46267 | following-s.gl.at.ply.gg | tcp |
Files
memory/1088-0-0x0000000000C20000-0x0000000000F18000-memory.dmp
memory/1088-2-0x000000001B1B0000-0x000000001B230000-memory.dmp
memory/1088-1-0x000007FEF5820000-0x000007FEF620C000-memory.dmp
memory/1088-3-0x0000000000A90000-0x0000000000AEC000-memory.dmp
memory/1088-4-0x00000000003D0000-0x00000000003DE000-memory.dmp
memory/1088-5-0x0000000000B90000-0x0000000000BA2000-memory.dmp
C:\Program Files\Orcus\Orcus.exe
| MD5 | 46490216fdf0efff1bc81e431a1fa7e4 |
| SHA1 | 563eef6b45ecd75c8bb72c5e41bb536a2f59f57f |
| SHA256 | b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d |
| SHA512 | c2b864efffeb5389a5877b8e03108de7f613e933871e412e9b1ba09bb512f8bbbcaa1e8c8ba249dacb2d70fa5ca618abe3e02ab64f146ae6f98fc434348a5b4c |
C:\Program Files\Orcus\Orcus.exe.config
| MD5 | a2b76cea3a59fa9af5ea21ff68139c98 |
| SHA1 | 35d76475e6a54c168f536e30206578babff58274 |
| SHA256 | f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839 |
| SHA512 | b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad |
memory/1088-14-0x000007FEF5820000-0x000007FEF620C000-memory.dmp
memory/2692-16-0x000007FEF5820000-0x000007FEF620C000-memory.dmp
memory/2692-15-0x0000000000D40000-0x0000000001038000-memory.dmp
memory/2692-17-0x000000001B420000-0x000000001B4A0000-memory.dmp
memory/2692-18-0x0000000000600000-0x0000000000658000-memory.dmp
memory/2692-19-0x0000000000C90000-0x0000000000CA8000-memory.dmp
memory/2584-21-0x000007FEF5820000-0x000007FEF620C000-memory.dmp
memory/2692-22-0x0000000000C00000-0x0000000000C10000-memory.dmp
memory/2584-23-0x000007FEF5820000-0x000007FEF620C000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Cab8B03.tmp
| MD5 | ac05d27423a85adc1622c714f2cb6184 |
| SHA1 | b0fe2b1abddb97837ea0195be70ab2ff14d43198 |
| SHA256 | c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d |
| SHA512 | 6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d |
memory/2692-40-0x000007FEF5820000-0x000007FEF620C000-memory.dmp
memory/2692-41-0x000000001B420000-0x000000001B4A0000-memory.dmp