Malware Analysis Report

2024-11-30 15:36

Sample ID 201127-p3c4tkehax
Target 1_3@1
SHA256 90d3580e187b631a9150bbb4a640b84c6fa990437febdc42f687cc7b3ce1deac
Tags
upx 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

90d3580e187b631a9150bbb4a640b84c6fa990437febdc42f687cc7b3ce1deac

Threat Level: Known bad

The file 1_3@1 was found to be: Known bad.

Malicious Activity Summary

upx phorphiex evasion loader persistence trojan worm

Modifies Windows Defender Real-time Protection settings

Windows security bypass

Phorphiex Worm

UPX packed file

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

Analysis: static1

Detonation Overview

Reported

2020-11-27 14:40

Signatures

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2020-11-27 14:40

Reported

2020-11-27 14:42

Platform

win7v20201028

Max time kernel

135s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\[email protected]"

Signatures

Modifies Windows Defender Real-time Protection settings

evasion trojan

Phorphiex Worm

worm trojan loader phorphiex

Windows security bypass

evasion trojan

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\3049586940303040\wcfgmgr32.exe N/A

UPX packed file

upx
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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\[email protected] N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\[email protected] N/A

Windows security modification

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AutoUpdateDisableNotify = "1" C:\Windows\3049586940303040\wcfgmgr32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" C:\Windows\3049586940303040\wcfgmgr32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" C:\Windows\3049586940303040\wcfgmgr32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesOverride = "1" C:\Windows\3049586940303040\wcfgmgr32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" C:\Windows\3049586940303040\wcfgmgr32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" C:\Windows\3049586940303040\wcfgmgr32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" C:\Windows\3049586940303040\wcfgmgr32.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\WCfgMgr32 = "C:\\Windows\\3049586940303040\\wcfgmgr32.exe" C:\Users\Admin\AppData\Local\Temp\[email protected] N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\WCfgMgr32 = "C:\\Windows\\3049586940303040\\wcfgmgr32.exe" C:\Users\Admin\AppData\Local\Temp\[email protected] N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\3049586940303040\wcfgmgr32.exe C:\Users\Admin\AppData\Local\Temp\[email protected] N/A
File opened for modification C:\Windows\3049586940303040\wcfgmgr32.exe C:\Users\Admin\AppData\Local\Temp\[email protected] N/A
File opened for modification C:\Windows\3049586940303040 C:\Users\Admin\AppData\Local\Temp\[email protected] N/A

Processes

C:\Users\Admin\AppData\Local\Temp\[email protected]

"C:\Users\Admin\AppData\Local\Temp\[email protected]"

C:\Windows\3049586940303040\wcfgmgr32.exe

C:\Windows\3049586940303040\wcfgmgr32.exe

Network

Country Destination Domain Proto
N/A 92.63.197.153:80 tcp
N/A 92.63.197.153:80 tcp
N/A 8.8.8.8:53 efhoahegue.ru udp
N/A 35.205.61.67:80 efhoahegue.ru tcp
N/A 8.8.8.8:53 afhoahegue.ru udp
N/A 35.205.61.67:80 afhoahegue.ru tcp
N/A 8.8.8.8:53 rfhoahegue.ru udp
N/A 8.8.8.8:53 tfhoahegue.ru udp
N/A 8.8.8.8:53 xfhoahegue.ru udp
N/A 8.8.8.8:53 efhoahegue.su udp
N/A 8.8.8.8:53 afhoahegue.su udp
N/A 8.8.8.8:53 rfhoahegue.su udp
N/A 8.8.8.8:53 tfhoahegue.su udp
N/A 8.8.8.8:53 xfhoahegue.su udp
N/A 92.63.197.153:80 tcp

Files

memory/1096-2-0x0000000002E72000-0x0000000002E76000-memory.dmp

\Windows\3049586940303040\wcfgmgr32.exe

MD5 b034e2a7cd76b757b7c62ce514b378b4
SHA1 27d15f36cb5e3338a19a7f6441ece58439f830f2
SHA256 90d3580e187b631a9150bbb4a640b84c6fa990437febdc42f687cc7b3ce1deac
SHA512 1cea6503cf244e1efb6ef68994a723f549126fc89ef8a38c76cdcc050d2a4524e96402591d1d150d927a12dcac81084a8275a929cf6e5933fdf62502c9c84385

\Windows\3049586940303040\wcfgmgr32.exe

MD5 b034e2a7cd76b757b7c62ce514b378b4
SHA1 27d15f36cb5e3338a19a7f6441ece58439f830f2
SHA256 90d3580e187b631a9150bbb4a640b84c6fa990437febdc42f687cc7b3ce1deac
SHA512 1cea6503cf244e1efb6ef68994a723f549126fc89ef8a38c76cdcc050d2a4524e96402591d1d150d927a12dcac81084a8275a929cf6e5933fdf62502c9c84385

memory/1820-5-0x0000000000000000-mapping.dmp

C:\Windows\3049586940303040\wcfgmgr32.exe

MD5 b034e2a7cd76b757b7c62ce514b378b4
SHA1 27d15f36cb5e3338a19a7f6441ece58439f830f2
SHA256 90d3580e187b631a9150bbb4a640b84c6fa990437febdc42f687cc7b3ce1deac
SHA512 1cea6503cf244e1efb6ef68994a723f549126fc89ef8a38c76cdcc050d2a4524e96402591d1d150d927a12dcac81084a8275a929cf6e5933fdf62502c9c84385

memory/1820-7-0x0000000002EB2000-0x0000000002EB6000-memory.dmp

memory/1800-8-0x000007FEF6500000-0x000007FEF677A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2020-11-27 14:40

Reported

2020-11-27 14:42

Platform

win10v20201028

Max time kernel

130s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\[email protected]"

Signatures

Phorphiex Worm

worm trojan loader phorphiex

Windows security bypass

evasion trojan

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\3049586940303040\wcfgmgr32.exe N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Windows security modification

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" C:\Windows\3049586940303040\wcfgmgr32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AutoUpdateDisableNotify = "1" C:\Windows\3049586940303040\wcfgmgr32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" C:\Windows\3049586940303040\wcfgmgr32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" C:\Windows\3049586940303040\wcfgmgr32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" C:\Windows\3049586940303040\wcfgmgr32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" C:\Windows\3049586940303040\wcfgmgr32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" C:\Windows\3049586940303040\wcfgmgr32.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\WCfgMgr32 = "C:\\Windows\\3049586940303040\\wcfgmgr32.exe" C:\Users\Admin\AppData\Local\Temp\[email protected] N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\WCfgMgr32 = "C:\\Windows\\3049586940303040\\wcfgmgr32.exe" C:\Users\Admin\AppData\Local\Temp\[email protected] N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\3049586940303040\wcfgmgr32.exe C:\Users\Admin\AppData\Local\Temp\[email protected] N/A
File opened for modification C:\Windows\3049586940303040\wcfgmgr32.exe C:\Users\Admin\AppData\Local\Temp\[email protected] N/A
File opened for modification C:\Windows\3049586940303040 C:\Users\Admin\AppData\Local\Temp\[email protected] N/A

Processes

C:\Users\Admin\AppData\Local\Temp\[email protected]

"C:\Users\Admin\AppData\Local\Temp\[email protected]"

C:\Windows\3049586940303040\wcfgmgr32.exe

C:\Windows\3049586940303040\wcfgmgr32.exe

Network

Country Destination Domain Proto
N/A 92.63.197.153:80 tcp
N/A 8.8.8.8:53 efhoahegue.ru udp
N/A 35.205.61.67:80 efhoahegue.ru tcp
N/A 35.205.61.67:80 efhoahegue.ru tcp
N/A 35.205.61.67:80 efhoahegue.ru tcp
N/A 8.8.8.8:53 afhoahegue.ru udp
N/A 35.205.61.67:80 afhoahegue.ru tcp
N/A 35.205.61.67:80 afhoahegue.ru tcp
N/A 35.205.61.67:80 afhoahegue.ru tcp
N/A 8.8.8.8:53 rfhoahegue.ru udp
N/A 8.8.8.8:53 tfhoahegue.ru udp
N/A 8.8.8.8:53 xfhoahegue.ru udp
N/A 8.8.8.8:53 efhoahegue.su udp
N/A 8.8.8.8:53 afhoahegue.su udp
N/A 8.8.8.8:53 rfhoahegue.su udp
N/A 8.8.8.8:53 tfhoahegue.su udp
N/A 8.8.8.8:53 xfhoahegue.su udp
N/A 92.63.197.153:80 tcp

Files

memory/2604-2-0x0000000003032000-0x0000000003036000-memory.dmp

memory/3584-3-0x0000000000000000-mapping.dmp

C:\Windows\3049586940303040\wcfgmgr32.exe

MD5 b034e2a7cd76b757b7c62ce514b378b4
SHA1 27d15f36cb5e3338a19a7f6441ece58439f830f2
SHA256 90d3580e187b631a9150bbb4a640b84c6fa990437febdc42f687cc7b3ce1deac
SHA512 1cea6503cf244e1efb6ef68994a723f549126fc89ef8a38c76cdcc050d2a4524e96402591d1d150d927a12dcac81084a8275a929cf6e5933fdf62502c9c84385

C:\Windows\3049586940303040\wcfgmgr32.exe

MD5 b034e2a7cd76b757b7c62ce514b378b4
SHA1 27d15f36cb5e3338a19a7f6441ece58439f830f2
SHA256 90d3580e187b631a9150bbb4a640b84c6fa990437febdc42f687cc7b3ce1deac
SHA512 1cea6503cf244e1efb6ef68994a723f549126fc89ef8a38c76cdcc050d2a4524e96402591d1d150d927a12dcac81084a8275a929cf6e5933fdf62502c9c84385

memory/3584-6-0x0000000003061000-0x0000000003065000-memory.dmp