Malware Analysis Report

2025-05-05 21:49

Sample ID 250415-f3mnzaylz5
Target 2025-04-15_caa4af4a68f03614c4aad8d77806e922_amadey_elex_smoke-loader
SHA256 de590a9b892f33375bfb945ea4f1d13d7db2a62cc17c65cb23c8d097806e647d
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 Overview

score
10/10

SHA256

de590a9b892f33375bfb945ea4f1d13d7db2a62cc17c65cb23c8d097806e647d

Threat Level: Known bad

The file 2025-04-15_caa4af4a68f03614c4aad8d77806e922_amadey_elex_smoke-loader was found to be: Known bad.

Malicious Activity Summary

phorphiex discovery loader persistence trojan worm

Phorphiex family

Phorphiex payload

Phorphiex, Phorpiex

Downloads MZ/PE file

Executes dropped EXE

Adds Run key to start application

Drops file in Windows directory

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-04-15 05:23

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-04-15 05:23

Reported

2025-04-15 05:26

Platform

win10v2004-20250410-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-04-15_caa4af4a68f03614c4aad8d77806e922_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\63DA.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\3290116540.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\3290116540.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\sysldrvsn.exe C:\Users\Admin\AppData\Local\Temp\3290116540.exe N/A
File opened for modification C:\Windows\sysldrvsn.exe C:\Users\Admin\AppData\Local\Temp\3290116540.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\2025-04-15_caa4af4a68f03614c4aad8d77806e922_amadey_elex_smoke-loader.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\63DA.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\3290116540.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 2800 wrote to memory of 2120 N/A C:\Users\Admin\AppData\Local\Temp\2025-04-15_caa4af4a68f03614c4aad8d77806e922_amadey_elex_smoke-loader.exe C:\Users\Admin\AppData\Local\Temp\63DA.exe
PID 2800 wrote to memory of 2120 N/A C:\Users\Admin\AppData\Local\Temp\2025-04-15_caa4af4a68f03614c4aad8d77806e922_amadey_elex_smoke-loader.exe C:\Users\Admin\AppData\Local\Temp\63DA.exe
PID 2800 wrote to memory of 2120 N/A C:\Users\Admin\AppData\Local\Temp\2025-04-15_caa4af4a68f03614c4aad8d77806e922_amadey_elex_smoke-loader.exe C:\Users\Admin\AppData\Local\Temp\63DA.exe
PID 2120 wrote to memory of 2588 N/A C:\Users\Admin\AppData\Local\Temp\63DA.exe C:\Users\Admin\AppData\Local\Temp\3290116540.exe
PID 2120 wrote to memory of 2588 N/A C:\Users\Admin\AppData\Local\Temp\63DA.exe C:\Users\Admin\AppData\Local\Temp\3290116540.exe
PID 2120 wrote to memory of 2588 N/A C:\Users\Admin\AppData\Local\Temp\63DA.exe C:\Users\Admin\AppData\Local\Temp\3290116540.exe
PID 2588 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\3290116540.exe C:\Windows\sysldrvsn.exe
PID 2588 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\3290116540.exe C:\Windows\sysldrvsn.exe
PID 2588 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\3290116540.exe C:\Windows\sysldrvsn.exe
PID 5016 wrote to memory of 4716 N/A C:\Windows\system32\cmd.exe C:\Windows\sysldrvsn.exe
PID 5016 wrote to memory of 4716 N/A C:\Windows\system32\cmd.exe C:\Windows\sysldrvsn.exe
PID 5016 wrote to memory of 4716 N/A C:\Windows\system32\cmd.exe C:\Windows\sysldrvsn.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2025-04-15_caa4af4a68f03614c4aad8d77806e922_amadey_elex_smoke-loader.exe

"C:\Users\Admin\AppData\Local\Temp\2025-04-15_caa4af4a68f03614c4aad8d77806e922_amadey_elex_smoke-loader.exe"

C:\Users\Admin\AppData\Local\Temp\63DA.exe

"C:\Users\Admin\AppData\Local\Temp\63DA.exe"

C:\Users\Admin\AppData\Local\Temp\3290116540.exe

C:\Users\Admin\AppData\Local\Temp\3290116540.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
GB 88.221.135.25:443 www.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 20.72.235.82:80 www.update.microsoft.com tcp
AF 180.94.76.82:40500 udp
KZ 5.76.159.77:40500 tcp
KZ 2.133.145.134:40500 udp
KZ 91.246.98.62:40500 udp
KZ 37.150.50.52:40500 udp
RU 185.39.17.124:80 tcp
KZ 95.56.224.166:40500 udp
UZ 213.206.60.107:40500 udp
IR 84.47.220.164:40500 tcp
KZ 37.151.27.190:40500 udp
KZ 5.76.159.77:40500 udp
RU 185.39.17.124:80 tcp
KZ 95.59.5.54:40500 udp
UZ 90.156.166.179:40500 udp
UZ 90.156.166.80:40500 udp
BA 93.180.124.3:40500 tcp
RU 78.36.17.105:40500 udp
IR 5.232.43.217:40500 udp
RU 185.39.17.124:80 tcp
IR 5.236.54.150:40500 udp
KZ 88.204.197.94:40500 udp
IR 212.120.203.252:40500 udp
EG 154.239.18.106:40500 tcp

Files

C:\Users\Admin\AppData\Local\Temp\63DA.exe

MD5 21789ebcbfca1eb0c6881e6af6216a81
SHA1 30152ddbe1150a2a612eb7b08e6551830276c8f0
SHA256 c0d12405d2a5cd6064e6e498d6f5f7fd48c72b2d02f171f20f898a4d2832968c
SHA512 cf3296247865130e4e769f09280d5f15237bedf474734f7b383130dfd01c5407a081e3f571152c393845b08d8ed48a0b2d23d11e905783332fb2552d20ad4514

C:\Users\Admin\AppData\Local\Temp\3290116540.exe

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