Analysis Overview
SHA256
8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9
Threat Level: Known bad
The file 8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin was found to be: Known bad.
Malicious Activity Summary
Phorphiex Payload
Phorphiex Worm
Phorphiex family
Windows security bypass
Executes dropped EXE
Windows security modification
Adds Run key to start application
Drops file in Windows directory
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-12-23 16:11
Signatures
Phorphiex Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Phorphiex family
Analysis: behavioral1
Detonation Overview
Submitted
2021-12-21 11:54
Reported
2021-12-21 11:57
Platform
win7-en-20211208
Max time kernel
153s
Max time network
149s
Command Line
Signatures
Phorphiex Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Phorphiex Worm
Windows security bypass
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\wudsvsmgr.exe | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" | C:\Windows\wudsvsmgr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" | C:\Windows\wudsvsmgr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiSpywareOverride = "1" | C:\Windows\wudsvsmgr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" | C:\Windows\wudsvsmgr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Windows\wudsvsmgr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesOverride = "1" | C:\Windows\wudsvsmgr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Windows\wudsvsmgr.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows Update Service = "C:\\Windows\\wudsvsmgr.exe" | C:\Users\Admin\AppData\Local\Temp\8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\wudsvsmgr.exe | C:\Users\Admin\AppData\Local\Temp\8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe | N/A |
| File opened for modification | C:\Windows\wudsvsmgr.exe | C:\Users\Admin\AppData\Local\Temp\8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1524 wrote to memory of 1656 | N/A | C:\Users\Admin\AppData\Local\Temp\8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe | C:\Windows\wudsvsmgr.exe |
| PID 1524 wrote to memory of 1656 | N/A | C:\Users\Admin\AppData\Local\Temp\8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe | C:\Windows\wudsvsmgr.exe |
| PID 1524 wrote to memory of 1656 | N/A | C:\Users\Admin\AppData\Local\Temp\8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe | C:\Windows\wudsvsmgr.exe |
| PID 1524 wrote to memory of 1656 | N/A | C:\Users\Admin\AppData\Local\Temp\8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe | C:\Windows\wudsvsmgr.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe
"C:\Users\Admin\AppData\Local\Temp\8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe"
C:\Windows\wudsvsmgr.exe
C:\Windows\wudsvsmgr.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | www.update.microsoft.com | udp |
| US | 52.137.90.34:80 | www.update.microsoft.com | tcp |
| SC | 185.215.113.48:40555 | udp | |
| SC | 185.215.113.57:40555 | tcp | |
| SC | 185.215.113.57:40555 | udp | |
| SC | 185.215.113.48:40555 | tcp | |
| SC | 185.215.113.48:40555 | tcp | |
| SC | 185.215.113.48:40555 | tcp | |
| SC | 185.215.113.48:40555 | tcp | |
| SC | 185.215.113.48:40555 | tcp | |
| SC | 185.215.113.48:40555 | tcp | |
| SC | 185.215.113.48:40555 | tcp | |
| SC | 185.215.113.57:40555 | tcp | |
| SC | 185.215.113.48:40555 | tcp | |
| SC | 185.215.113.48:40555 | tcp | |
| SC | 185.215.113.48:40555 | tcp | |
| SC | 185.215.113.48:40555 | tcp | |
| SC | 185.215.113.48:40555 | tcp | |
| SC | 185.215.113.57:40555 | tcp |
Files
memory/1524-54-0x0000000075D51000-0x0000000075D53000-memory.dmp
memory/1656-55-0x0000000000000000-mapping.dmp
C:\Windows\wudsvsmgr.exe
| MD5 | 5bbd9bc7dafd0a6076ed450aa18afc0a |
| SHA1 | 3ec5aa4b6185a505c521b07268d19a12455754e5 |
| SHA256 | 8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9 |
| SHA512 | 2d5f87490b90611bc9602c4f36933294f1021b20893275429b2d36b5e2b691d0eb8703579373dc43929902387032f74a51c7a7ec98aff3a3764d13d0bc8bbd3a |
C:\Windows\wudsvsmgr.exe
| MD5 | 5bbd9bc7dafd0a6076ed450aa18afc0a |
| SHA1 | 3ec5aa4b6185a505c521b07268d19a12455754e5 |
| SHA256 | 8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9 |
| SHA512 | 2d5f87490b90611bc9602c4f36933294f1021b20893275429b2d36b5e2b691d0eb8703579373dc43929902387032f74a51c7a7ec98aff3a3764d13d0bc8bbd3a |
Analysis: behavioral2
Detonation Overview
Submitted
2021-12-21 11:54
Reported
2021-12-21 11:57
Platform
win10-en-20211208
Max time kernel
156s
Max time network
164s
Command Line
Signatures
Phorphiex Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Phorphiex Worm
Windows security bypass
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\wudsvsmgr.exe | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" | C:\Windows\wudsvsmgr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Windows\wudsvsmgr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" | C:\Windows\wudsvsmgr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" | C:\Windows\wudsvsmgr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1" | C:\Windows\wudsvsmgr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" | C:\Windows\wudsvsmgr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Windows\wudsvsmgr.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows Update Service = "C:\\Windows\\wudsvsmgr.exe" | C:\Users\Admin\AppData\Local\Temp\8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\wudsvsmgr.exe | C:\Users\Admin\AppData\Local\Temp\8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe | N/A |
| File opened for modification | C:\Windows\wudsvsmgr.exe | C:\Users\Admin\AppData\Local\Temp\8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3144 wrote to memory of 1316 | N/A | C:\Users\Admin\AppData\Local\Temp\8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe | C:\Windows\wudsvsmgr.exe |
| PID 3144 wrote to memory of 1316 | N/A | C:\Users\Admin\AppData\Local\Temp\8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe | C:\Windows\wudsvsmgr.exe |
| PID 3144 wrote to memory of 1316 | N/A | C:\Users\Admin\AppData\Local\Temp\8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe | C:\Windows\wudsvsmgr.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe
"C:\Users\Admin\AppData\Local\Temp\8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe"
C:\Windows\wudsvsmgr.exe
C:\Windows\wudsvsmgr.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | time.windows.com | udp |
| NL | 20.101.57.9:123 | time.windows.com | udp |
| US | 8.8.8.8:53 | www.update.microsoft.com | udp |
| US | 52.185.71.28:80 | www.update.microsoft.com | tcp |
| SC | 185.215.113.57:40555 | udp | |
| SC | 185.215.113.48:40555 | tcp | |
| SC | 185.215.113.48:40555 | tcp | |
| SC | 185.215.113.48:40555 | tcp | |
| SC | 185.215.113.48:40555 | udp | |
| SC | 185.215.113.57:40555 | tcp | |
| SC | 185.215.113.57:40555 | tcp | |
| SC | 185.215.113.48:40555 | tcp | |
| SC | 185.215.113.57:40555 | tcp | |
| SC | 185.215.113.57:40555 | tcp | |
| SC | 185.215.113.48:40555 | tcp | |
| SC | 185.215.113.57:40555 | tcp |
Files
memory/1316-118-0x0000000000000000-mapping.dmp
C:\Windows\wudsvsmgr.exe
| MD5 | 5bbd9bc7dafd0a6076ed450aa18afc0a |
| SHA1 | 3ec5aa4b6185a505c521b07268d19a12455754e5 |
| SHA256 | 8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9 |
| SHA512 | 2d5f87490b90611bc9602c4f36933294f1021b20893275429b2d36b5e2b691d0eb8703579373dc43929902387032f74a51c7a7ec98aff3a3764d13d0bc8bbd3a |
C:\Windows\wudsvsmgr.exe
| MD5 | 5bbd9bc7dafd0a6076ed450aa18afc0a |
| SHA1 | 3ec5aa4b6185a505c521b07268d19a12455754e5 |
| SHA256 | 8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9 |
| SHA512 | 2d5f87490b90611bc9602c4f36933294f1021b20893275429b2d36b5e2b691d0eb8703579373dc43929902387032f74a51c7a7ec98aff3a3764d13d0bc8bbd3a |