Malware Analysis Report

2025-08-10 19:53

Sample ID 250703-gmkecavns4
Target 2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader
SHA256 6b3b36bf06aa6bfe96704d5400f78853ac7a3bec6ad2237ebd77d4845a95d428
Tags
bootkit discovery persistence
score
6/10

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
6/10

SHA256

6b3b36bf06aa6bfe96704d5400f78853ac7a3bec6ad2237ebd77d4845a95d428

Threat Level: Shows suspicious behavior

The file 2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit discovery persistence

Writes to the Master Boot Record (MBR)

Checks computer location settings

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Modifies registry class

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-07-03 05:55

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-07-03 05:55

Reported

2025-07-03 05:57

Platform

win10v2004-20250610-en

Max time kernel

124s

Max time network

139s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe"

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A

Enumerates physical storage devices

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\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\te6\shell\ = "open" C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\te6\shell\open\ C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\te6\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe\" %1" C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\te6\URL Protocol C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\te6\shell C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\te6\shell\open C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\te6\shell\open\command C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\te6 C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\te6\EditFlags = "2" C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe

"C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe"

C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe

"C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe" -Admin

Network

Country Destination Domain Proto
US 8.8.8.8:53 stat.game.yy.com udp
US 8.8.8.8:53 mlog.bigda.com udp
CN 163.177.159.188:80 mlog.bigda.com tcp
CN 125.94.240.78:80 stat.game.yy.com tcp
CN 125.94.240.78:80 stat.game.yy.com tcp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.179.227:80 c.pki.goog tcp

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2025-07-03 05:55

Reported

2025-07-03 05:57

Platform

win11-20250610-en

Max time kernel

100s

Max time network

103s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe"

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A

Enumerates physical storage devices

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\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\te6\shell\open\ C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\te6\shell\open\command C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\te6\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe\" %1" C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\te6\EditFlags = "2" C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\te6\shell C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\te6\shell\ = "open" C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\te6\shell\open C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\te6 C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\te6\URL Protocol C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe

"C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe"

C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe

"C:\Users\Admin\AppData\Local\Temp\2025-07-03_80e5cef616f0ee64db2ee63b27f557c4_amadey_black-basta_elex_luca-stealer_smoke-loader.exe" -Admin

Network

Country Destination Domain Proto
US 8.8.8.8:53 mlog.bigda.com udp
US 8.8.8.8:53 stat.game.yy.com udp
CN 120.232.148.122:80 mlog.bigda.com tcp
CN 125.94.240.78:80 stat.game.yy.com tcp
CN 125.94.240.78:80 stat.game.yy.com tcp
CN 120.232.148.122:80 mlog.bigda.com tcp
CN 125.94.240.78:80 stat.game.yy.com tcp
CN 125.94.240.78:80 stat.game.yy.com tcp
CN 120.232.148.122:80 mlog.bigda.com tcp
CN 120.232.148.122:80 mlog.bigda.com tcp
CN 120.232.148.122:80 mlog.bigda.com tcp
CN 120.232.148.122:80 mlog.bigda.com tcp
US 104.208.16.91:443 tcp

Files

N/A