Analysis Overview
SHA256
a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac
Threat Level: Known bad
The file a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac was found to be: Known bad.
Malicious Activity Summary
Orcus main payload
Orcus
Orcurs Rat Executable
Orcus family
Orcurs Rat Executable
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Legitimate hosting services abused for malware hosting/C2
Drops file in Program Files directory
Unsigned PE
Enumerates physical storage devices
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of FindShellTrayWindow
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-18 01:02
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
2024-02-18 01:02
Reported
2024-02-18 01:04
Platform
win7-20231215-en
Max time kernel
149s
Max time network
150s
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:\Program Files (x86)\Orcus\Orcus.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | 0.tcp.eu.ngrok.io | N/A | N/A |
| N/A | 0.tcp.eu.ngrok.io | N/A | N/A |
| N/A | 0.tcp.eu.ngrok.io | N/A | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\Orcus\Orcus.exe | C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Orcus\Orcus.exe | C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe | N/A |
| File created | C:\Program Files (x86)\Orcus\Orcus.exe.config | C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe | N/A |
Enumerates physical storage devices
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Orcus\Orcus.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Orcus\Orcus.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2076 wrote to memory of 2404 | N/A | C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe | C:\Program Files (x86)\Orcus\Orcus.exe |
| PID 2076 wrote to memory of 2404 | N/A | C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe | C:\Program Files (x86)\Orcus\Orcus.exe |
| PID 2076 wrote to memory of 2404 | N/A | C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe | C:\Program Files (x86)\Orcus\Orcus.exe |
| PID 2076 wrote to memory of 2404 | N/A | C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe | C:\Program Files (x86)\Orcus\Orcus.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe
"C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe"
C:\Program Files (x86)\Orcus\Orcus.exe
"C:\Program Files (x86)\Orcus\Orcus.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 0.tcp.eu.ngrok.io | udp |
| DE | 3.125.223.134:18005 | 0.tcp.eu.ngrok.io | tcp |
| DE | 3.125.223.134:18005 | 0.tcp.eu.ngrok.io | tcp |
| DE | 3.125.223.134:18005 | 0.tcp.eu.ngrok.io | tcp |
| DE | 3.125.223.134:18005 | 0.tcp.eu.ngrok.io | tcp |
| DE | 3.125.223.134:18005 | 0.tcp.eu.ngrok.io | tcp |
| DE | 3.125.223.134:18005 | 0.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 0.tcp.eu.ngrok.io | udp |
| DE | 18.192.31.165:18005 | 0.tcp.eu.ngrok.io | tcp |
| DE | 18.192.31.165:18005 | 0.tcp.eu.ngrok.io | tcp |
| DE | 18.192.31.165:18005 | 0.tcp.eu.ngrok.io | tcp |
| DE | 18.192.31.165:18005 | 0.tcp.eu.ngrok.io | tcp |
| DE | 18.192.31.165:18005 | 0.tcp.eu.ngrok.io | tcp |
| DE | 18.192.31.165:18005 | 0.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 0.tcp.eu.ngrok.io | udp |
| DE | 3.125.102.39:18005 | 0.tcp.eu.ngrok.io | tcp |
| DE | 3.125.102.39:18005 | 0.tcp.eu.ngrok.io | tcp |
Files
memory/2076-0-0x00000000001A0000-0x0000000000288000-memory.dmp
memory/2076-1-0x00000000749E0000-0x00000000750CE000-memory.dmp
memory/2076-3-0x0000000001DE0000-0x0000000001E20000-memory.dmp
memory/2076-2-0x00000000004D0000-0x00000000004DE000-memory.dmp
memory/2076-4-0x0000000001E20000-0x0000000001E7C000-memory.dmp
memory/2076-5-0x0000000001DD0000-0x0000000001DE2000-memory.dmp
\Program Files (x86)\Orcus\Orcus.exe
| MD5 | 27dd00a457c846114cb1d2f1a05d769e |
| SHA1 | 41c6149f963a66c6a7e75871731740e52dec7ea8 |
| SHA256 | a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac |
| SHA512 | b27b13e078a39cfc3cfc2e5a41831f6565aac128aaede93093f220eb134e3d589b4c8f71317b3a1d0df880578abef774620ac09b0e9d1fb0454f8298ba38f81e |
memory/2076-13-0x00000000749E0000-0x00000000750CE000-memory.dmp
C:\Program Files (x86)\Orcus\Orcus.exe.config
| MD5 | a2b76cea3a59fa9af5ea21ff68139c98 |
| SHA1 | 35d76475e6a54c168f536e30206578babff58274 |
| SHA256 | f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839 |
| SHA512 | b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad |
memory/2404-16-0x00000000742F0000-0x00000000749DE000-memory.dmp
memory/2404-17-0x0000000000030000-0x0000000000118000-memory.dmp
memory/2404-18-0x00000000042F0000-0x0000000004330000-memory.dmp
memory/2404-19-0x0000000000760000-0x0000000000772000-memory.dmp
memory/2404-20-0x0000000002080000-0x0000000002098000-memory.dmp
memory/2404-21-0x0000000000780000-0x0000000000790000-memory.dmp
memory/2404-22-0x00000000742F0000-0x00000000749DE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-18 01:02
Reported
2024-02-18 01:04
Platform
win10v2004-20231215-en
Max time kernel
149s
Max time network
153s
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\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Orcus\Orcus.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | 0.tcp.eu.ngrok.io | N/A | N/A |
| N/A | 0.tcp.eu.ngrok.io | N/A | N/A |
| N/A | 0.tcp.eu.ngrok.io | N/A | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\Orcus\Orcus.exe | C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Orcus\Orcus.exe | C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe | N/A |
| File created | C:\Program Files (x86)\Orcus\Orcus.exe.config | C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe | N/A |
Enumerates physical storage devices
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Orcus\Orcus.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Orcus\Orcus.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4776 wrote to memory of 3248 | N/A | C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe | C:\Program Files (x86)\Orcus\Orcus.exe |
| PID 4776 wrote to memory of 3248 | N/A | C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe | C:\Program Files (x86)\Orcus\Orcus.exe |
| PID 4776 wrote to memory of 3248 | N/A | C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe | C:\Program Files (x86)\Orcus\Orcus.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe
"C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe"
C:\Program Files (x86)\Orcus\Orcus.exe
"C:\Program Files (x86)\Orcus\Orcus.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.tcp.eu.ngrok.io | udp |
| DE | 3.124.142.205:18005 | 0.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| DE | 3.124.142.205:18005 | 0.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| DE | 3.124.142.205:18005 | 0.tcp.eu.ngrok.io | tcp |
| US | 138.91.171.81:80 | tcp | |
| DE | 3.124.142.205:18005 | 0.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 79.121.231.20.in-addr.arpa | udp |
| DE | 3.124.142.205:18005 | 0.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.tcp.eu.ngrok.io | udp |
| DE | 18.192.31.165:18005 | 0.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| DE | 18.192.31.165:18005 | 0.tcp.eu.ngrok.io | tcp |
| DE | 18.192.31.165:18005 | 0.tcp.eu.ngrok.io | tcp |
| DE | 18.192.31.165:18005 | 0.tcp.eu.ngrok.io | tcp |
| DE | 18.192.31.165:18005 | 0.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 0.tcp.eu.ngrok.io | udp |
| DE | 18.158.249.75:18005 | 0.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 23.173.189.20.in-addr.arpa | udp |
| DE | 18.158.249.75:18005 | 0.tcp.eu.ngrok.io | tcp |
Files
memory/4776-0-0x00000000745F0000-0x0000000074DA0000-memory.dmp
memory/4776-1-0x00000000007E0000-0x00000000008C8000-memory.dmp
memory/4776-2-0x0000000005290000-0x00000000052A0000-memory.dmp
memory/4776-3-0x0000000002B70000-0x0000000002B7E000-memory.dmp
memory/4776-4-0x00000000052A0000-0x00000000052FC000-memory.dmp
memory/4776-5-0x0000000005910000-0x0000000005EB4000-memory.dmp
memory/4776-6-0x0000000005400000-0x0000000005492000-memory.dmp
memory/4776-7-0x00000000058E0000-0x00000000058F2000-memory.dmp
C:\Program Files (x86)\Orcus\Orcus.exe
| MD5 | 24988f0f06d3038e6bd63efa3c26a031 |
| SHA1 | a3e3df719ca02f7e67653c916bcf01982243dbbc |
| SHA256 | 7e9095531d09a9ad6bfa55e55c6a3b61e5ea2ac8def9d610e3b18d270a455b42 |
| SHA512 | c11ec57c800e8cdfe3930844847c26153a0b31c7857eccd9fdd8c5a6a77315d8f2d6cec33e1e61706990c4f21ff79e330dca39b0d39a52c075e3ac77dbf4985e |
C:\Program Files (x86)\Orcus\Orcus.exe
| MD5 | 27dd00a457c846114cb1d2f1a05d769e |
| SHA1 | 41c6149f963a66c6a7e75871731740e52dec7ea8 |
| SHA256 | a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac |
| SHA512 | b27b13e078a39cfc3cfc2e5a41831f6565aac128aaede93093f220eb134e3d589b4c8f71317b3a1d0df880578abef774620ac09b0e9d1fb0454f8298ba38f81e |
C:\Program Files (x86)\Orcus\Orcus.exe.config
| MD5 | a2b76cea3a59fa9af5ea21ff68139c98 |
| SHA1 | 35d76475e6a54c168f536e30206578babff58274 |
| SHA256 | f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839 |
| SHA512 | b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad |
memory/4776-22-0x00000000745F0000-0x0000000074DA0000-memory.dmp
memory/3248-23-0x00000000745F0000-0x0000000074DA0000-memory.dmp
memory/3248-24-0x0000000004CF0000-0x0000000004D00000-memory.dmp
memory/3248-25-0x00000000051F0000-0x0000000005208000-memory.dmp
memory/3248-26-0x0000000005280000-0x0000000005290000-memory.dmp
memory/3248-27-0x0000000005E80000-0x0000000005E8A000-memory.dmp
memory/3248-28-0x00000000745F0000-0x0000000074DA0000-memory.dmp
memory/3248-29-0x0000000004CF0000-0x0000000004D00000-memory.dmp