Analysis Overview
SHA256
f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc
Threat Level: Known bad
The file f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc.bin was found to be: Known bad.
Malicious Activity Summary
Phorphiex family
Phorphiex Payload
Phorphiex Worm
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: behavioral2
Detonation Overview
Submitted
2021-12-21 11:54
Reported
2021-12-21 11:57
Platform
win10-en-20211208
Max time kernel
158s
Max time network
158s
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\wcvpsvcr.exe | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" | C:\Windows\wcvpsvcr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" | C:\Windows\wcvpsvcr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1" | C:\Windows\wcvpsvcr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" | C:\Windows\wcvpsvcr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Windows\wcvpsvcr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" | C:\Windows\wcvpsvcr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Windows\wcvpsvcr.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\\wcvpsvcr.exe" | C:\Users\Admin\AppData\Local\Temp\f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc.bin.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\wcvpsvcr.exe | C:\Users\Admin\AppData\Local\Temp\f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc.bin.exe | N/A |
| File opened for modification | C:\Windows\wcvpsvcr.exe | C:\Users\Admin\AppData\Local\Temp\f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc.bin.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2416 wrote to memory of 2780 | N/A | C:\Users\Admin\AppData\Local\Temp\f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc.bin.exe | C:\Windows\wcvpsvcr.exe |
| PID 2416 wrote to memory of 2780 | N/A | C:\Users\Admin\AppData\Local\Temp\f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc.bin.exe | C:\Windows\wcvpsvcr.exe |
| PID 2416 wrote to memory of 2780 | N/A | C:\Users\Admin\AppData\Local\Temp\f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc.bin.exe | C:\Windows\wcvpsvcr.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc.bin.exe
"C:\Users\Admin\AppData\Local\Temp\f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc.bin.exe"
C:\Windows\wcvpsvcr.exe
C:\Windows\wcvpsvcr.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 | 185.215.113.84:80 | tcp | |
| UZ | 85.202.193.59:40555 | udp | |
| IR | 151.235.42.161:40555 | tcp | |
| UZ | 213.230.107.81:40555 | udp | |
| CN | 42.248.182.75:40555 | udp | |
| NG | 196.223.122.198:40555 | udp | |
| CN | 42.248.182.125:40555 | udp | |
| SC | 185.215.113.84:80 | tcp | |
| RU | 213.228.96.185:40555 | udp | |
| CN | 42.248.182.163:40555 | tcp | |
| IR | 195.181.27.236:40555 | udp | |
| US | 8.8.8.8:53 | time.windows.com | udp |
| CN | 42.248.183.145:40555 | udp | |
| NL | 20.101.57.9:123 | time.windows.com | udp |
| IR | 91.99.79.20:40555 | udp | |
| SC | 185.215.113.84:80 | tcp | |
| IR | 37.255.183.75:40555 | udp | |
| IR | 46.245.56.183:40555 | udp | |
| YE | 134.35.65.162:40555 | tcp | |
| IR | 78.39.101.78:40555 | udp | |
| CN | 42.248.183.250:40555 | udp | |
| IR | 2.178.244.179:40555 | udp | |
| SC | 185.215.113.84:80 | tcp | |
| CN | 42.248.183.35:40555 | udp | |
| MZ | 197.249.5.69:40555 | udp | |
| IR | 2.191.40.101:40555 | tcp | |
| IR | 91.185.143.225:40555 | udp | |
| IR | 2.185.243.130:40555 | udp | |
| SC | 185.215.113.84:80 | tcp | |
| IN | 123.252.183.144:40555 | udp | |
| UZ | 87.237.233.213:40555 | udp | |
| EG | 197.50.16.32:40555 | udp | |
| CN | 42.248.183.114:40555 | tcp | |
| YE | 31.31.185.89:40555 | udp | |
| SC | 185.215.113.84:80 | tcp | |
| IR | 78.154.58.250:40555 | udp | |
| CN | 42.248.182.182:40555 | udp | |
| IR | 2.178.208.211:40555 | udp | |
| IR | 188.159.228.174:40555 | udp | |
| IR | 80.191.20.20:40555 | tcp | |
| IN | 117.201.172.163:40555 | udp | |
| CN | 42.248.182.112:40555 | udp |
Files
C:\Windows\wcvpsvcr.exe
| MD5 | ec96bcc50ca8fa91821e820fdfe30915 |
| SHA1 | f1a542683b90038b6619df44dc3cd8e30ad93f5d |
| SHA256 | f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc |
| SHA512 | 572785bd3dfa297c1b03be308bd8460ada2bdf888f7ea9bb483203c41169b07a9d64ca522f70fd2627c4a9022e6bbb635b398e594b02e0a704956384d9597b9a |
C:\Windows\wcvpsvcr.exe
| MD5 | ec96bcc50ca8fa91821e820fdfe30915 |
| SHA1 | f1a542683b90038b6619df44dc3cd8e30ad93f5d |
| SHA256 | f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc |
| SHA512 | 572785bd3dfa297c1b03be308bd8460ada2bdf888f7ea9bb483203c41169b07a9d64ca522f70fd2627c4a9022e6bbb635b398e594b02e0a704956384d9597b9a |
memory/2780-118-0x0000000000000000-mapping.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2021-12-21 11:54
Reported
2021-12-21 11:57
Platform
win7-en-20211208
Max time kernel
150s
Max time network
158s
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\wcvpsvcr.exe | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Windows\wcvpsvcr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesOverride = "1" | C:\Windows\wcvpsvcr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Windows\wcvpsvcr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" | C:\Windows\wcvpsvcr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" | C:\Windows\wcvpsvcr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiSpywareOverride = "1" | C:\Windows\wcvpsvcr.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" | C:\Windows\wcvpsvcr.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\\wcvpsvcr.exe" | C:\Users\Admin\AppData\Local\Temp\f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc.bin.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\wcvpsvcr.exe | C:\Users\Admin\AppData\Local\Temp\f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc.bin.exe | N/A |
| File created | C:\Windows\wcvpsvcr.exe | C:\Users\Admin\AppData\Local\Temp\f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc.bin.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1192 wrote to memory of 944 | N/A | C:\Users\Admin\AppData\Local\Temp\f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc.bin.exe | C:\Windows\wcvpsvcr.exe |
| PID 1192 wrote to memory of 944 | N/A | C:\Users\Admin\AppData\Local\Temp\f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc.bin.exe | C:\Windows\wcvpsvcr.exe |
| PID 1192 wrote to memory of 944 | N/A | C:\Users\Admin\AppData\Local\Temp\f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc.bin.exe | C:\Windows\wcvpsvcr.exe |
| PID 1192 wrote to memory of 944 | N/A | C:\Users\Admin\AppData\Local\Temp\f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc.bin.exe | C:\Windows\wcvpsvcr.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc.bin.exe
"C:\Users\Admin\AppData\Local\Temp\f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc.bin.exe"
C:\Windows\wcvpsvcr.exe
C:\Windows\wcvpsvcr.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | www.update.microsoft.com | udp |
| US | 52.185.71.28:80 | www.update.microsoft.com | tcp |
| SC | 185.215.113.84:80 | tcp | |
| SC | 185.215.113.84:80 | tcp | |
| CN | 42.248.183.195:40555 | udp | |
| YE | 31.31.185.89:40555 | tcp | |
| RU | 95.188.177.104:40555 | udp | |
| IR | 85.185.130.117:40555 | udp | |
| UZ | 217.30.163.94:40555 | udp | |
| IR | 151.239.71.193:40555 | udp | |
| SC | 185.215.113.84:80 | tcp | |
| CN | 42.248.182.151:40555 | udp | |
| CN | 42.248.183.44:40555 | tcp | |
| YE | 89.189.89.177:40555 | udp | |
| IR | 151.232.202.182:40555 | udp | |
| UZ | 217.30.163.6:40555 | udp | |
| SC | 185.215.113.84:80 | tcp | |
| CN | 42.248.183.88:40555 | udp | |
| CN | 42.248.182.193:40555 | udp | |
| EG | 197.50.16.32:40555 | tcp | |
| UZ | 89.236.219.200:40555 | udp | |
| IR | 5.235.168.49:40555 | tcp | |
| SC | 185.215.113.57:40555 | udp | |
| SC | 185.215.113.84:80 | tcp | |
| VE | 190.72.12.39:40555 | udp | |
| YE | 188.240.117.8:40555 | udp | |
| IR | 37.148.10.190:40555 | udp | |
| CN | 42.248.183.59:40555 | udp | |
| CN | 42.248.183.26:40555 | tcp | |
| SC | 185.215.113.84:80 | tcp | |
| IR | 46.100.156.194:40555 | udp | |
| CN | 42.248.182.59:40555 | udp | |
| RU | 37.20.21.113:40555 | udp | |
| YE | 134.35.65.162:40555 | udp | |
| IR | 188.253.19.87:40555 | udp | |
| SC | 185.215.113.84:80 | tcp | |
| UZ | 213.230.120.120:40555 | udp | |
| AO | 154.65.218.201:40555 | tcp | |
| IR | 78.39.146.132:40555 | udp |
Files
memory/1192-55-0x0000000074EC1000-0x0000000074EC3000-memory.dmp
memory/944-56-0x0000000000000000-mapping.dmp
C:\Windows\wcvpsvcr.exe
| MD5 | ec96bcc50ca8fa91821e820fdfe30915 |
| SHA1 | f1a542683b90038b6619df44dc3cd8e30ad93f5d |
| SHA256 | f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc |
| SHA512 | 572785bd3dfa297c1b03be308bd8460ada2bdf888f7ea9bb483203c41169b07a9d64ca522f70fd2627c4a9022e6bbb635b398e594b02e0a704956384d9597b9a |
C:\Windows\wcvpsvcr.exe
| MD5 | ec96bcc50ca8fa91821e820fdfe30915 |
| SHA1 | f1a542683b90038b6619df44dc3cd8e30ad93f5d |
| SHA256 | f3fd26579b32378c1115937a1aea5daa2dc4d9f11c7c69c3f6878962e31e6fdc |
| SHA512 | 572785bd3dfa297c1b03be308bd8460ada2bdf888f7ea9bb483203c41169b07a9d64ca522f70fd2627c4a9022e6bbb635b398e594b02e0a704956384d9597b9a |