Analysis Overview
SHA256
c86e66ff929bb7b66fa3a3dcbf12b2a39041ec1740cd5f748d4672bf06d6db5d
Threat Level: Known bad
The file tmp was found to be: Known bad.
Malicious Activity Summary
Phorphiex family
Phorphiex
Windows security bypass
Executes dropped EXE
Loads dropped DLL
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
2022-08-12 19:06
Signatures
Phorphiex family
Analysis: behavioral1
Detonation Overview
Submitted
2022-08-12 19:06
Reported
2022-08-12 19:09
Platform
win7-20220812-en
Max time kernel
151s
Max time network
160s
Command Line
Signatures
Phorphiex
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesOverride = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Windows\wklopsvcs.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\wklopsvcs.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\312495840.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\1189317648.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\wklopsvcs.exe | N/A |
| N/A | N/A | C:\Windows\wklopsvcs.exe | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesOverride = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiSpywareOverride = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" | C:\Windows\wklopsvcs.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Windows\\wklopsvcs.exe" | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\wklopsvcs.exe | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
| File opened for modification | C:\Windows\wklopsvcs.exe | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
C:\Windows\wklopsvcs.exe
C:\Windows\wklopsvcs.exe
C:\Users\Admin\AppData\Local\Temp\312495840.exe
C:\Users\Admin\AppData\Local\Temp\312495840.exe
C:\Users\Admin\AppData\Local\Temp\1189317648.exe
C:\Users\Admin\AppData\Local\Temp\1189317648.exe
Network
| Country | Destination | Domain | Proto |
| RU | 185.215.113.84:80 | 185.215.113.84 | tcp |
| RU | 185.215.113.84:80 | 185.215.113.84 | tcp |
| US | 8.8.8.8:53 | www.update.microsoft.com | udp |
| US | 20.109.209.108:80 | www.update.microsoft.com | tcp |
| TH | 158.108.177.187:40500 | tcp | |
| IR | 78.39.206.152:40500 | udp | |
| RU | 185.215.113.84:80 | 185.215.113.84 | tcp |
| IR | 2.190.172.180:40500 | udp | |
| UZ | 87.237.239.105:40500 | udp | |
| MR | 41.188.124.58:40500 | udp | |
| VE | 190.142.136.193:40500 | udp | |
| UZ | 185.78.138.31:40500 | tcp | |
| IR | 188.158.152.54:40500 | udp | |
| IR | 2.191.174.156:40500 | udp | |
| UZ | 213.230.111.166:40500 | udp | |
| IR | 5.219.254.68:40500 | udp | |
| IR | 46.225.110.80:40500 | udp | |
| IN | 117.212.116.33:40500 | tcp | |
| IR | 2.176.100.94:40500 | udp | |
| KG | 158.181.22.173:40500 | udp | |
| IR | 151.239.216.183:40500 | udp | |
| YE | 178.130.74.143:40500 | tcp | |
| GH | 196.175.1.52:40500 | udp | |
| YE | 188.240.108.101:40500 | udp | |
| IR | 31.57.136.218:40500 | udp | |
| AO | 154.118.198.100:40500 | udp | |
| YE | 109.200.167.68:40500 | tcp | |
| UZ | 213.230.111.34:40500 | udp |
Files
memory/856-54-0x0000000075931000-0x0000000075933000-memory.dmp
memory/1720-55-0x0000000000000000-mapping.dmp
C:\Windows\wklopsvcs.exe
| MD5 | 209baf40779b80d5e443c3dbbd656bfb |
| SHA1 | b64fa8dded031d5dacac519a2035cefcd05e6503 |
| SHA256 | c86e66ff929bb7b66fa3a3dcbf12b2a39041ec1740cd5f748d4672bf06d6db5d |
| SHA512 | 9b4e3e82e141e569c85f22dd215f804b2f4e8969cda858662efca67532ba57d2e0acdbaa179524b4996be62f9acee3298eaf6cdfd03eff7e39e23bc7163c440e |
C:\Windows\wklopsvcs.exe
| MD5 | 209baf40779b80d5e443c3dbbd656bfb |
| SHA1 | b64fa8dded031d5dacac519a2035cefcd05e6503 |
| SHA256 | c86e66ff929bb7b66fa3a3dcbf12b2a39041ec1740cd5f748d4672bf06d6db5d |
| SHA512 | 9b4e3e82e141e569c85f22dd215f804b2f4e8969cda858662efca67532ba57d2e0acdbaa179524b4996be62f9acee3298eaf6cdfd03eff7e39e23bc7163c440e |
\Users\Admin\AppData\Local\Temp\312495840.exe
| MD5 | c8a69840ffff790ea975bb0cf55f7f4d |
| SHA1 | dd1c74f0eb2fc813d16c96669e22fb657b67c4b3 |
| SHA256 | e532a8c62dbf01fecc09896f376e689ee836c5498ff24586ed142f72cfd174dc |
| SHA512 | df22b912e15640cd1c5f91908e1e2d2b4fc7be27d54415fd2c0ba5f0de83a785662b67912e4513e13fde30abab4082763d4dd6e65ddc2cdfe47bbe6ee40d249a |
memory/1268-60-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\312495840.exe
| MD5 | c8a69840ffff790ea975bb0cf55f7f4d |
| SHA1 | dd1c74f0eb2fc813d16c96669e22fb657b67c4b3 |
| SHA256 | e532a8c62dbf01fecc09896f376e689ee836c5498ff24586ed142f72cfd174dc |
| SHA512 | df22b912e15640cd1c5f91908e1e2d2b4fc7be27d54415fd2c0ba5f0de83a785662b67912e4513e13fde30abab4082763d4dd6e65ddc2cdfe47bbe6ee40d249a |
\Users\Admin\AppData\Local\Temp\1189317648.exe
| MD5 | a475e43527d7dc7d6f2d23bad64fcc99 |
| SHA1 | 793a7625c0106d6cd79d060b4eec94e58530833e |
| SHA256 | f97c43bf3dce6180e658f2c3776e31cf52472b28ac8249be4d307880b6405eeb |
| SHA512 | 4af57a218d7d790b5ec4581dd2bc941deff05ea11bf6054a9d268c054af421977cdd68d5090884358208925f50023c97e9cfaba0831d72e9bcdcca729447d900 |
memory/864-63-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\1189317648.exe
| MD5 | a475e43527d7dc7d6f2d23bad64fcc99 |
| SHA1 | 793a7625c0106d6cd79d060b4eec94e58530833e |
| SHA256 | f97c43bf3dce6180e658f2c3776e31cf52472b28ac8249be4d307880b6405eeb |
| SHA512 | 4af57a218d7d790b5ec4581dd2bc941deff05ea11bf6054a9d268c054af421977cdd68d5090884358208925f50023c97e9cfaba0831d72e9bcdcca729447d900 |
Analysis: behavioral2
Detonation Overview
Submitted
2022-08-12 19:06
Reported
2022-08-12 19:09
Platform
win10v2004-20220721-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
Phorphiex
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Windows\wklopsvcs.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\wklopsvcs.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2066027931.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\759315877.exe | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" | C:\Windows\wklopsvcs.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" | C:\Windows\wklopsvcs.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Windows\\wklopsvcs.exe" | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\wklopsvcs.exe | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
| File opened for modification | C:\Windows\wklopsvcs.exe | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
C:\Windows\wklopsvcs.exe
C:\Windows\wklopsvcs.exe
C:\Users\Admin\AppData\Local\Temp\2066027931.exe
C:\Users\Admin\AppData\Local\Temp\2066027931.exe
C:\Users\Admin\AppData\Local\Temp\759315877.exe
C:\Users\Admin\AppData\Local\Temp\759315877.exe
Network
| Country | Destination | Domain | Proto |
| US | 93.184.221.240:80 | tcp | |
| NL | 40.126.32.68:443 | tcp | |
| RU | 185.215.113.84:80 | 185.215.113.84 | tcp |
| US | 93.184.221.240:80 | tcp | |
| RU | 185.215.113.84:80 | 185.215.113.84 | tcp |
| RU | 185.215.113.84:80 | 185.215.113.84 | tcp |
| US | 8.8.8.8:53 | www.update.microsoft.com | udp |
| US | 52.168.112.67:443 | tcp | |
| VE | 190.39.68.209:40500 | udp | |
| SY | 95.159.8.71:40500 | tcp | |
| US | 8.8.8.8:53 | 106.89.54.20.in-addr.arpa | udp |
| RU | 37.21.120.106:40500 | udp | |
| BD | 123.49.51.194:40500 | udp | |
| UZ | 89.236.245.253:40500 | udp | |
| IR | 2.180.87.187:40500 | udp | |
| RU | 185.215.113.84:80 | tcp | |
| UZ | 89.236.219.80:40500 | udp | |
| UZ | 217.30.170.20:40500 | tcp | |
| YE | 110.238.46.196:40500 | udp | |
| UZ | 217.30.173.56:40500 | udp | |
| IR | 46.100.187.60:40500 | udp | |
| IR | 5.234.167.230:40500 | udp | |
| MX | 187.225.68.38:40500 | udp | |
| MX | 189.187.105.147:40500 | tcp | |
| UZ | 89.236.217.140:40500 | udp | |
| IR | 5.232.200.109:40500 | udp | |
| IR | 91.98.82.130:40500 | udp | |
| IR | 2.176.50.71:40500 | udp | |
| PK | 113.197.50.97:40500 | udp | |
| IR | 5.233.243.227:40500 | tcp | |
| YE | 5.255.5.144:40500 | udp | |
| UZ | 195.158.14.139:40500 | udp | |
| UZ | 213.230.120.141:40500 | udp | |
| UZ | 213.230.126.103:40500 | udp |
Files
memory/5004-130-0x0000000000000000-mapping.dmp
C:\Windows\wklopsvcs.exe
| MD5 | 209baf40779b80d5e443c3dbbd656bfb |
| SHA1 | b64fa8dded031d5dacac519a2035cefcd05e6503 |
| SHA256 | c86e66ff929bb7b66fa3a3dcbf12b2a39041ec1740cd5f748d4672bf06d6db5d |
| SHA512 | 9b4e3e82e141e569c85f22dd215f804b2f4e8969cda858662efca67532ba57d2e0acdbaa179524b4996be62f9acee3298eaf6cdfd03eff7e39e23bc7163c440e |
C:\Windows\wklopsvcs.exe
| MD5 | 209baf40779b80d5e443c3dbbd656bfb |
| SHA1 | b64fa8dded031d5dacac519a2035cefcd05e6503 |
| SHA256 | c86e66ff929bb7b66fa3a3dcbf12b2a39041ec1740cd5f748d4672bf06d6db5d |
| SHA512 | 9b4e3e82e141e569c85f22dd215f804b2f4e8969cda858662efca67532ba57d2e0acdbaa179524b4996be62f9acee3298eaf6cdfd03eff7e39e23bc7163c440e |
C:\Users\Admin\AppData\Local\Temp\2066027931.exe
| MD5 | c8a69840ffff790ea975bb0cf55f7f4d |
| SHA1 | dd1c74f0eb2fc813d16c96669e22fb657b67c4b3 |
| SHA256 | e532a8c62dbf01fecc09896f376e689ee836c5498ff24586ed142f72cfd174dc |
| SHA512 | df22b912e15640cd1c5f91908e1e2d2b4fc7be27d54415fd2c0ba5f0de83a785662b67912e4513e13fde30abab4082763d4dd6e65ddc2cdfe47bbe6ee40d249a |
memory/4148-133-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\2066027931.exe
| MD5 | c8a69840ffff790ea975bb0cf55f7f4d |
| SHA1 | dd1c74f0eb2fc813d16c96669e22fb657b67c4b3 |
| SHA256 | e532a8c62dbf01fecc09896f376e689ee836c5498ff24586ed142f72cfd174dc |
| SHA512 | df22b912e15640cd1c5f91908e1e2d2b4fc7be27d54415fd2c0ba5f0de83a785662b67912e4513e13fde30abab4082763d4dd6e65ddc2cdfe47bbe6ee40d249a |
memory/1516-136-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\759315877.exe
| MD5 | a475e43527d7dc7d6f2d23bad64fcc99 |
| SHA1 | 793a7625c0106d6cd79d060b4eec94e58530833e |
| SHA256 | f97c43bf3dce6180e658f2c3776e31cf52472b28ac8249be4d307880b6405eeb |
| SHA512 | 4af57a218d7d790b5ec4581dd2bc941deff05ea11bf6054a9d268c054af421977cdd68d5090884358208925f50023c97e9cfaba0831d72e9bcdcca729447d900 |
C:\Users\Admin\AppData\Local\Temp\759315877.exe
| MD5 | a475e43527d7dc7d6f2d23bad64fcc99 |
| SHA1 | 793a7625c0106d6cd79d060b4eec94e58530833e |
| SHA256 | f97c43bf3dce6180e658f2c3776e31cf52472b28ac8249be4d307880b6405eeb |
| SHA512 | 4af57a218d7d790b5ec4581dd2bc941deff05ea11bf6054a9d268c054af421977cdd68d5090884358208925f50023c97e9cfaba0831d72e9bcdcca729447d900 |