Malware Analysis Report

2025-05-05 21:49

Sample ID 250417-q3phnszk16
Target 2025-04-17_104052bfe49feca7ec8ee988cfa0c924_amadey_elex_smoke-loader
SHA256 a16eb5272505a48ba3d4415f31fdec537d5401c73a498a4db89ebc5042d05599
Tags
phorphiex discovery loader persistence trojan worm
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V16

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

a16eb5272505a48ba3d4415f31fdec537d5401c73a498a4db89ebc5042d05599

Threat Level: Known bad

The file 2025-04-17_104052bfe49feca7ec8ee988cfa0c924_amadey_elex_smoke-loader was found to be: Known bad.

Malicious Activity Summary

phorphiex discovery loader persistence trojan worm

Phorphiex payload

Phorphiex, Phorpiex

Phorphiex family

Downloads MZ/PE file

Executes dropped EXE

Adds Run key to start application

Drops file in Windows directory

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-04-17 13:47

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-04-17 13:47

Reported

2025-04-17 13:49

Platform

win10v2004-20250410-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-04-17_104052bfe49feca7ec8ee988cfa0c924_amadey_elex_smoke-loader.exe"

Signatures

Phorphiex family

phorphiex

Phorphiex payload

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

Phorphiex, Phorpiex

worm trojan loader phorphiex

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5F95.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1322313020.exe N/A
N/A N/A C:\Windows\sysldrvsn.exe N/A
N/A N/A C:\Windows\sysldrvsn.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\\sysldrvsn.exe" C:\Users\Admin\AppData\Local\Temp\1322313020.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\sysldrvsn.exe C:\Users\Admin\AppData\Local\Temp\1322313020.exe N/A
File opened for modification C:\Windows\sysldrvsn.exe C:\Users\Admin\AppData\Local\Temp\1322313020.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2025-04-17_104052bfe49feca7ec8ee988cfa0c924_amadey_elex_smoke-loader.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\5F95.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\1322313020.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\sysldrvsn.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 452 wrote to memory of 440 N/A C:\Users\Admin\AppData\Local\Temp\2025-04-17_104052bfe49feca7ec8ee988cfa0c924_amadey_elex_smoke-loader.exe C:\Users\Admin\AppData\Local\Temp\5F95.exe
PID 452 wrote to memory of 440 N/A C:\Users\Admin\AppData\Local\Temp\2025-04-17_104052bfe49feca7ec8ee988cfa0c924_amadey_elex_smoke-loader.exe C:\Users\Admin\AppData\Local\Temp\5F95.exe
PID 452 wrote to memory of 440 N/A C:\Users\Admin\AppData\Local\Temp\2025-04-17_104052bfe49feca7ec8ee988cfa0c924_amadey_elex_smoke-loader.exe C:\Users\Admin\AppData\Local\Temp\5F95.exe
PID 440 wrote to memory of 5728 N/A C:\Users\Admin\AppData\Local\Temp\5F95.exe C:\Users\Admin\AppData\Local\Temp\1322313020.exe
PID 440 wrote to memory of 5728 N/A C:\Users\Admin\AppData\Local\Temp\5F95.exe C:\Users\Admin\AppData\Local\Temp\1322313020.exe
PID 440 wrote to memory of 5728 N/A C:\Users\Admin\AppData\Local\Temp\5F95.exe C:\Users\Admin\AppData\Local\Temp\1322313020.exe
PID 5728 wrote to memory of 4448 N/A C:\Users\Admin\AppData\Local\Temp\1322313020.exe C:\Windows\sysldrvsn.exe
PID 5728 wrote to memory of 4448 N/A C:\Users\Admin\AppData\Local\Temp\1322313020.exe C:\Windows\sysldrvsn.exe
PID 5728 wrote to memory of 4448 N/A C:\Users\Admin\AppData\Local\Temp\1322313020.exe C:\Windows\sysldrvsn.exe
PID 5628 wrote to memory of 4788 N/A C:\Windows\system32\cmd.exe C:\Windows\sysldrvsn.exe
PID 5628 wrote to memory of 4788 N/A C:\Windows\system32\cmd.exe C:\Windows\sysldrvsn.exe
PID 5628 wrote to memory of 4788 N/A C:\Windows\system32\cmd.exe C:\Windows\sysldrvsn.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2025-04-17_104052bfe49feca7ec8ee988cfa0c924_amadey_elex_smoke-loader.exe

"C:\Users\Admin\AppData\Local\Temp\2025-04-17_104052bfe49feca7ec8ee988cfa0c924_amadey_elex_smoke-loader.exe"

C:\Users\Admin\AppData\Local\Temp\5F95.exe

"C:\Users\Admin\AppData\Local\Temp\5F95.exe"

C:\Users\Admin\AppData\Local\Temp\1322313020.exe

C:\Users\Admin\AppData\Local\Temp\1322313020.exe

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c C:\Windows\sysldrvsn.exe

C:\Windows\sysldrvsn.exe

C:\Windows\sysldrvsn.exe

C:\Windows\sysldrvsn.exe

C:\Windows\sysldrvsn.exe

Network

Country Destination Domain Proto
RU 185.215.113.66:80 185.215.113.66 tcp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 twizt.net udp
RU 185.215.113.66:80 twizt.net tcp
RU 185.215.113.66:80 twizt.net tcp
RU 185.39.17.124:80 tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.179.227:80 c.pki.goog tcp
RU 185.39.17.124:80 tcp
US 8.8.8.8:53 www.update.microsoft.com udp
US 20.109.209.108:80 www.update.microsoft.com tcp
KZ 212.154.184.138:40500 udp
KZ 95.59.62.94:40500 tcp
RU 92.124.133.207:40500 udp
KZ 2.132.252.200:40500 udp
UZ 213.230.109.202:40500 udp
RU 185.39.17.124:80 tcp
KG 213.145.143.253:40500 udp
UZ 213.230.107.150:40500 udp
UZ 90.156.163.101:40500 tcp
UZ 90.156.166.202:40500 udp
UZ 90.156.164.174:40500 udp
RU 185.39.17.124:80 tcp
BA 93.180.124.3:40500 udp
KZ 37.151.73.50:40500 udp
UZ 90.156.167.111:40500 udp
RU 84.53.244.106:40500 tcp
UZ 213.206.62.207:40500 udp
KZ 178.88.149.156:40500 udp
RU 185.39.17.124:80 tcp
IR 78.39.235.251:40500 udp
KZ 5.251.146.73:40500 udp
UZ 90.156.194.146:40500 udp
KZ 37.151.72.182:40500 tcp

Files

C:\Users\Admin\AppData\Local\Temp\5F95.exe

MD5 21789ebcbfca1eb0c6881e6af6216a81
SHA1 30152ddbe1150a2a612eb7b08e6551830276c8f0
SHA256 c0d12405d2a5cd6064e6e498d6f5f7fd48c72b2d02f171f20f898a4d2832968c
SHA512 cf3296247865130e4e769f09280d5f15237bedf474734f7b383130dfd01c5407a081e3f571152c393845b08d8ed48a0b2d23d11e905783332fb2552d20ad4514

C:\Users\Admin\AppData\Local\Temp\1322313020.exe

MD5 00306e1e4a4230f9dc6b626a68dcbbb0
SHA1 1d71fc3b6a308396c8f03bdc0ee012b44d7782e9
SHA256 8133c11eeec328b9995eec62438ecd87535d540f320beab4642d032661e448b2
SHA512 6899d3bac0cf0b493e0f4e85700a40f6ebc433c8319f746e803a948fe9715f00682adb09f967e9a02e6e4bffa020083d12192e1e375fa82a4a648ba28b3d6af9

Analysis: behavioral2

Detonation Overview

Submitted

2025-04-17 13:47

Reported

2025-04-17 13:49

Platform

win11-20250410-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-04-17_104052bfe49feca7ec8ee988cfa0c924_amadey_elex_smoke-loader.exe"

Signatures

Phorphiex family

phorphiex

Phorphiex payload

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

Phorphiex, Phorpiex

worm trojan loader phorphiex

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\67C2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1684219502.exe N/A
N/A N/A C:\Windows\sysldrvsn.exe N/A
N/A N/A C:\Windows\sysldrvsn.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\\sysldrvsn.exe" C:\Users\Admin\AppData\Local\Temp\1684219502.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\sysldrvsn.exe C:\Users\Admin\AppData\Local\Temp\1684219502.exe N/A
File opened for modification C:\Windows\sysldrvsn.exe C:\Users\Admin\AppData\Local\Temp\1684219502.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2025-04-17_104052bfe49feca7ec8ee988cfa0c924_amadey_elex_smoke-loader.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\67C2.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\1684219502.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\sysldrvsn.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4192 wrote to memory of 5356 N/A C:\Users\Admin\AppData\Local\Temp\2025-04-17_104052bfe49feca7ec8ee988cfa0c924_amadey_elex_smoke-loader.exe C:\Users\Admin\AppData\Local\Temp\67C2.exe
PID 4192 wrote to memory of 5356 N/A C:\Users\Admin\AppData\Local\Temp\2025-04-17_104052bfe49feca7ec8ee988cfa0c924_amadey_elex_smoke-loader.exe C:\Users\Admin\AppData\Local\Temp\67C2.exe
PID 4192 wrote to memory of 5356 N/A C:\Users\Admin\AppData\Local\Temp\2025-04-17_104052bfe49feca7ec8ee988cfa0c924_amadey_elex_smoke-loader.exe C:\Users\Admin\AppData\Local\Temp\67C2.exe
PID 5356 wrote to memory of 952 N/A C:\Users\Admin\AppData\Local\Temp\67C2.exe C:\Users\Admin\AppData\Local\Temp\1684219502.exe
PID 5356 wrote to memory of 952 N/A C:\Users\Admin\AppData\Local\Temp\67C2.exe C:\Users\Admin\AppData\Local\Temp\1684219502.exe
PID 5356 wrote to memory of 952 N/A C:\Users\Admin\AppData\Local\Temp\67C2.exe C:\Users\Admin\AppData\Local\Temp\1684219502.exe
PID 952 wrote to memory of 5932 N/A C:\Users\Admin\AppData\Local\Temp\1684219502.exe C:\Windows\sysldrvsn.exe
PID 952 wrote to memory of 5932 N/A C:\Users\Admin\AppData\Local\Temp\1684219502.exe C:\Windows\sysldrvsn.exe
PID 952 wrote to memory of 5932 N/A C:\Users\Admin\AppData\Local\Temp\1684219502.exe C:\Windows\sysldrvsn.exe
PID 3452 wrote to memory of 460 N/A C:\Windows\system32\cmd.exe C:\Windows\sysldrvsn.exe
PID 3452 wrote to memory of 460 N/A C:\Windows\system32\cmd.exe C:\Windows\sysldrvsn.exe
PID 3452 wrote to memory of 460 N/A C:\Windows\system32\cmd.exe C:\Windows\sysldrvsn.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2025-04-17_104052bfe49feca7ec8ee988cfa0c924_amadey_elex_smoke-loader.exe

"C:\Users\Admin\AppData\Local\Temp\2025-04-17_104052bfe49feca7ec8ee988cfa0c924_amadey_elex_smoke-loader.exe"

C:\Users\Admin\AppData\Local\Temp\67C2.exe

"C:\Users\Admin\AppData\Local\Temp\67C2.exe"

C:\Users\Admin\AppData\Local\Temp\1684219502.exe

C:\Users\Admin\AppData\Local\Temp\1684219502.exe

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c C:\Windows\sysldrvsn.exe

C:\Windows\sysldrvsn.exe

C:\Windows\sysldrvsn.exe

C:\Windows\sysldrvsn.exe

C:\Windows\sysldrvsn.exe

Network

Country Destination Domain Proto
RU 185.215.113.66:80 185.215.113.66 tcp
RU 185.215.113.66:80 twizt.net tcp
RU 185.215.113.66:80 twizt.net tcp
RU 185.39.17.124:80 tcp
RU 185.39.17.124:80 tcp
US 20.109.209.108:80 www.update.microsoft.com tcp
RS 78.109.103.103:40500 tcp
DZ 105.96.64.145:40500 udp
TJ 109.74.67.96:40500 udp
KZ 178.91.47.103:40500 udp
AO 129.122.212.139:40500 udp
RU 185.39.17.124:80 tcp
UZ 90.156.167.234:40500 udp
UZ 195.158.14.139:40500 udp
UZ 213.230.91.87:40500 tcp
IR 2.190.146.217:40500 udp
KZ 178.90.212.145:40500 udp
RU 185.39.17.124:80 tcp
IR 78.38.98.117:40500 udp
TJ 109.74.70.126:40500 udp
KZ 37.151.163.132:40500 udp
KZ 5.63.86.62:40500 tcp
KZ 95.59.24.22:40500 udp
UZ 213.206.60.187:40500 udp
RU 185.39.17.124:80 tcp
YE 82.114.187.76:40500 udp
KZ 37.151.73.50:40500 udp
DE 159.100.18.229:40500 udp
UZ 213.230.71.89:40500 tcp

Files

C:\Users\Admin\AppData\Local\Temp\67C2.exe

MD5 21789ebcbfca1eb0c6881e6af6216a81
SHA1 30152ddbe1150a2a612eb7b08e6551830276c8f0
SHA256 c0d12405d2a5cd6064e6e498d6f5f7fd48c72b2d02f171f20f898a4d2832968c
SHA512 cf3296247865130e4e769f09280d5f15237bedf474734f7b383130dfd01c5407a081e3f571152c393845b08d8ed48a0b2d23d11e905783332fb2552d20ad4514

C:\Users\Admin\AppData\Local\Temp\1684219502.exe

MD5 00306e1e4a4230f9dc6b626a68dcbbb0
SHA1 1d71fc3b6a308396c8f03bdc0ee012b44d7782e9
SHA256 8133c11eeec328b9995eec62438ecd87535d540f320beab4642d032661e448b2
SHA512 6899d3bac0cf0b493e0f4e85700a40f6ebc433c8319f746e803a948fe9715f00682adb09f967e9a02e6e4bffa020083d12192e1e375fa82a4a648ba28b3d6af9