General
- Target luongson141.tv_nano.exe
- Size 64KB
- Sample261001-rxnvmavye1
- SHA256 2e62538bd890df28776550f4fd373911bb364e127655d21226c8190fe158c6ad
- MD5 93457221a0252ec44d6d0a99a9c384d9
- SHA1 11202f58b711b5e87106d61430d7a7e65b1357f3
- SHA512 d9fb9436e9b0fbbe1525c666badfd328a425f00bfd9737e666a293841e708f2584dbcd5c7ab95ad7b860240803cc4eb81f68d5ace6400cc5b0a61f8c3acbf273
- SSDEEP 1536:62EWo7uIlfrBPAtnuwWE4hI/zW6t1+DWyj/9uOpunA2WCc3VnwNuagnE:FOblfrBPYW62N9uOpeA2WCc3VwNurE
- TLSH T1F453E88477E98621E5FE4EFE4D3296014731F8679C23D78D0A84449E1AB3785CEE8B27
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
luongson141.tv_nano.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
luongson141.tv_nano.exe
Resource
win11ltsc2024-20260911-en
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
http://luongson141.tv
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ac7e2f05-8df7-4c55-8841-78385f6bb064
-
c2_url
http://luongson141.tv
-
version
1.2.2.0
Targets
-
- Target luongson141.tv_nano.exe
- Size 64KB
- SHA256 2e62538bd890df28776550f4fd373911bb364e127655d21226c8190fe158c6ad
- MD5 93457221a0252ec44d6d0a99a9c384d9
- SHA1 11202f58b711b5e87106d61430d7a7e65b1357f3
- SHA512 d9fb9436e9b0fbbe1525c666badfd328a425f00bfd9737e666a293841e708f2584dbcd5c7ab95ad7b860240803cc4eb81f68d5ace6400cc5b0a61f8c3acbf273
- SSDEEP 1536:62EWo7uIlfrBPAtnuwWE4hI/zW6t1+DWyj/9uOpunA2WCc3VnwNuagnE:FOblfrBPYW62N9uOpeA2WCc3VwNurE
- TLSH T1F453E88477E98621E5FE4EFE4D3296014731F8679C23D78D0A84449E1AB3785CEE8B27
- MD5 SHA1 SHA512 SSDEEP TLSH
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Contains code to disable Windows Defender
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
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Modifies security service
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Grants admin privileges
Uses net.exe to modify the user's privileges.
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Disables RegEdit via registry modification
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Disables Task Manager via registry modification
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Drops file in Drivers directory
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Event Triggered Execution: Image File Execution Options Injection
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Modifies Windows Firewall
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Creates a file in the Startup directory
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
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Disables service(s)
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Stops running service(s)
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Adds Run key to start application
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Creates a new local user account
Uses net.exe to create a new local user account, often for persistence or a backdoor account.
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Discovers running processes
Running process information can be used to identify security tools or plan follow-on actions.
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Drops file in System32 directory
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Executes a VBScript file via the Windows Script Host.
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Sets desktop wallpaper using registry
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Suspicious use of NtSetInformationThreadHideFromDebugger
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
4PowerShell
1Visual Basic
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1System Services
2Service Execution
2Windows Management Instrumentation
1Persistence
Account Manipulation
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create Account
1Local Account
1Create or Modify System Process
5Windows Service
5Event Triggered Execution
2Image File Execution Options Injection
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Account Manipulation
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create or Modify System Process
5Windows Service
5Event Triggered Execution
2Image File Execution Options Injection
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Debugger Evasion
1Direct Volume Access
1Impair Defenses
3Disable or Modify System Firewall
1Disable or Modify Tools
1Indicator Removal
2File Deletion
2Modify Registry
4Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Discovery
Browser Information Discovery
1Debugger Evasion
1Peripheral Device Discovery
1Permission Groups Discovery
1Local Groups
1Process Discovery
1Query Registry
3System Information Discovery
5System Network Configuration Discovery
2Wi-Fi Discovery
1