Malware Analysis Report

2024-11-30 15:06

Sample ID 211221-n2z7nsdce7
Target 4151d9af5a104eea9106b18d35102f3b11134d7ba598e1fd57580a932d4596fa.bin
SHA256 4151d9af5a104eea9106b18d35102f3b11134d7ba598e1fd57580a932d4596fa
Tags
phorphiex evasion loader persistence trojan worm
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

4151d9af5a104eea9106b18d35102f3b11134d7ba598e1fd57580a932d4596fa

Threat Level: Known bad

The file 4151d9af5a104eea9106b18d35102f3b11134d7ba598e1fd57580a932d4596fa.bin was found to be: Known bad.

Malicious Activity Summary

phorphiex evasion loader persistence trojan worm

Phorphiex Payload

Phorphiex Worm

Windows security bypass

Phorphiex family

Executes dropped EXE

Windows security modification

Adds Run key to start application

Drops file in Windows directory

Suspicious use of WriteProcessMemory

MITRE ATT&CK

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

phorphiex

Analysis: behavioral1

Detonation Overview

Submitted

2021-12-21 11:54

Reported

2021-12-21 11:57

Platform

win7-en-20211208

Max time kernel

154s

Max time network

159s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4151d9af5a104eea9106b18d35102f3b11134d7ba598e1fd57580a932d4596fa.bin.exe"

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

worm trojan loader phorphiex

Windows security bypass

evasion trojan

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\drvmngrsv.exe N/A

Windows security modification

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" C:\Windows\drvmngrsv.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" C:\Windows\drvmngrsv.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiSpywareOverride = "1" C:\Windows\drvmngrsv.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" C:\Windows\drvmngrsv.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" C:\Windows\drvmngrsv.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesOverride = "1" C:\Windows\drvmngrsv.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" C:\Windows\drvmngrsv.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Windows\\drvmngrsv.exe" C:\Users\Admin\AppData\Local\Temp\4151d9af5a104eea9106b18d35102f3b11134d7ba598e1fd57580a932d4596fa.bin.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\drvmngrsv.exe C:\Users\Admin\AppData\Local\Temp\4151d9af5a104eea9106b18d35102f3b11134d7ba598e1fd57580a932d4596fa.bin.exe N/A
File opened for modification C:\Windows\drvmngrsv.exe C:\Users\Admin\AppData\Local\Temp\4151d9af5a104eea9106b18d35102f3b11134d7ba598e1fd57580a932d4596fa.bin.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4151d9af5a104eea9106b18d35102f3b11134d7ba598e1fd57580a932d4596fa.bin.exe

"C:\Users\Admin\AppData\Local\Temp\4151d9af5a104eea9106b18d35102f3b11134d7ba598e1fd57580a932d4596fa.bin.exe"

C:\Windows\drvmngrsv.exe

C:\Windows\drvmngrsv.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
CN 42.248.182.247:40500 tcp
N/A 10.231.50.30:40500 udp
SC 185.215.113.84:80 tcp
IR 2.182.22.87:40500 udp
RU 37.113.146.57:40500 udp
SY 95.212.125.43:40500 udp
AO 41.70.179.199:40500 udp
SC 185.215.113.84:80 tcp
IR 2.190.39.174:40500 tcp
SY 90.153.151.134:40500 udp
SC 185.215.113.84:80 185.215.113.84 tcp
RU 212.75.132.150:40500 udp
CN 42.248.182.244:40500 udp
N/A 10.231.50.30:40500 tcp
IR 2.191.113.74:40500 udp
CN 42.248.182.247:40500 udp
YE 134.35.172.21:40500 udp
N/A 10.240.180.69:40500 udp
RU 95.72.89.221:40500 udp
SC 185.215.113.84:80 tcp
IR 2.187.89.24:40500 tcp
MX 189.242.59.4:40500 udp
UZ 80.80.218.116:40500 udp
N/A 10.230.41.131:40500 udp
IR 2.190.39.174:40500 udp
SC 185.215.113.84:80 tcp
CI 41.189.49.104:40500 udp
AO 154.71.236.54:40500 tcp
SC 185.215.113.84:80 tcp
RU 45.182.189.217:40500 udp
N/A 10.230.13.29:40500 udp
SC 185.215.113.84:80 185.215.113.84 tcp
BO 181.177.171.94:40500 udp
SY 90.153.151.134:40500 tcp
YE 213.246.29.141:40500 udp
SC 185.215.113.84:80 tcp
IR 46.225.101.150:40500 udp

Files

memory/1180-55-0x0000000075831000-0x0000000075833000-memory.dmp

memory/1796-56-0x0000000000000000-mapping.dmp

C:\Windows\drvmngrsv.exe

MD5 0a49900b4492f43b68331af062731f33
SHA1 95adde1482efa92c0907917c8716cd337f008d7e
SHA256 4151d9af5a104eea9106b18d35102f3b11134d7ba598e1fd57580a932d4596fa
SHA512 5d7328a6e4e573c67dd829aafeccefbf84543b2c3fc7d3d9ace9bab026c66a6c78c913436ebd7ea315b5af636c40a6c7d6650b5bef5aabd694bc9c83eee8aa53

C:\Windows\drvmngrsv.exe

MD5 0a49900b4492f43b68331af062731f33
SHA1 95adde1482efa92c0907917c8716cd337f008d7e
SHA256 4151d9af5a104eea9106b18d35102f3b11134d7ba598e1fd57580a932d4596fa
SHA512 5d7328a6e4e573c67dd829aafeccefbf84543b2c3fc7d3d9ace9bab026c66a6c78c913436ebd7ea315b5af636c40a6c7d6650b5bef5aabd694bc9c83eee8aa53

Analysis: behavioral2

Detonation Overview

Submitted

2021-12-21 11:54

Reported

2021-12-21 11:57

Platform

win10-en-20211208

Max time kernel

170s

Max time network

176s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4151d9af5a104eea9106b18d35102f3b11134d7ba598e1fd57580a932d4596fa.bin.exe"

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

worm trojan loader phorphiex

Windows security bypass

evasion trojan

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\drvmngrsv.exe N/A

Windows security modification

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" C:\Windows\drvmngrsv.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" C:\Windows\drvmngrsv.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1" C:\Windows\drvmngrsv.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" C:\Windows\drvmngrsv.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" C:\Windows\drvmngrsv.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" C:\Windows\drvmngrsv.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" C:\Windows\drvmngrsv.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Windows\\drvmngrsv.exe" C:\Users\Admin\AppData\Local\Temp\4151d9af5a104eea9106b18d35102f3b11134d7ba598e1fd57580a932d4596fa.bin.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\drvmngrsv.exe C:\Users\Admin\AppData\Local\Temp\4151d9af5a104eea9106b18d35102f3b11134d7ba598e1fd57580a932d4596fa.bin.exe N/A
File opened for modification C:\Windows\drvmngrsv.exe C:\Users\Admin\AppData\Local\Temp\4151d9af5a104eea9106b18d35102f3b11134d7ba598e1fd57580a932d4596fa.bin.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4151d9af5a104eea9106b18d35102f3b11134d7ba598e1fd57580a932d4596fa.bin.exe

"C:\Users\Admin\AppData\Local\Temp\4151d9af5a104eea9106b18d35102f3b11134d7ba598e1fd57580a932d4596fa.bin.exe"

C:\Windows\drvmngrsv.exe

C:\Windows\drvmngrsv.exe

Network

Country Destination Domain Proto
US 52.109.12.20:443 tcp
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 52.137.90.34:80 www.update.microsoft.com tcp
CN 42.248.182.244:40500 udp
UZ 80.80.218.116:40500 tcp
SC 185.215.113.84:80 tcp
CI 41.189.49.104:40500 udp
IR 151.240.157.246:40500 udp
YE 110.238.35.22:40500 udp
RU 95.72.89.221:40500 udp
SC 185.215.113.84:80 tcp
IR 2.187.89.24:40500 udp
IR 5.236.18.243:40500 tcp
IR 5.233.58.232:40500 udp
AO 154.71.236.54:40500 udp
SC 185.215.113.84:80 tcp
RU 212.75.132.150:40500 udp
IR 31.58.80.15:40500 udp
SY 82.137.243.97:40500 tcp
YE 178.130.75.148:40500 udp
IR 2.190.39.174:40500 udp
RU 45.182.189.217:40500 udp
SC 185.215.113.84:80 tcp
UZ 213.230.126.103:40500 udp
IR 2.187.89.24:40500 tcp
IR 2.176.241.167:40500 udp
SC 185.215.113.84:80 tcp
N/A 10.230.41.131:40500 udp
SY 90.153.151.132:40500 udp
IR 2.180.236.70:40500 tcp
SY 95.212.125.43:40500 udp
IR 151.245.48.156:40500 udp
SC 185.215.113.84:80 tcp
YE 81.91.26.24:40500 udp
IR 2.182.22.87:40500 udp
IR 2.180.236.70:40500 udp
IR 2.187.89.24:40500 tcp
SY 90.153.151.134:40500 udp

Files

memory/2304-115-0x0000000000000000-mapping.dmp

C:\Windows\drvmngrsv.exe

MD5 0a49900b4492f43b68331af062731f33
SHA1 95adde1482efa92c0907917c8716cd337f008d7e
SHA256 4151d9af5a104eea9106b18d35102f3b11134d7ba598e1fd57580a932d4596fa
SHA512 5d7328a6e4e573c67dd829aafeccefbf84543b2c3fc7d3d9ace9bab026c66a6c78c913436ebd7ea315b5af636c40a6c7d6650b5bef5aabd694bc9c83eee8aa53

C:\Windows\drvmngrsv.exe

MD5 0a49900b4492f43b68331af062731f33
SHA1 95adde1482efa92c0907917c8716cd337f008d7e
SHA256 4151d9af5a104eea9106b18d35102f3b11134d7ba598e1fd57580a932d4596fa
SHA512 5d7328a6e4e573c67dd829aafeccefbf84543b2c3fc7d3d9ace9bab026c66a6c78c913436ebd7ea315b5af636c40a6c7d6650b5bef5aabd694bc9c83eee8aa53