General
- Target nuvolex.com_nano.exe
- Size 64KB
- Sample261019-qeaplstx4r
- SHA256 4828b09d00596b50a8cfd81a038726c0708a4a122505d3c6aed8b3e64166215f
- MD5 86a5355edcc102ad1bfc62e55a64f632
- SHA1 c7955301c0a15a74b16df53eac5949b26db44fb2
- SHA512 b445dc2a22b7b8580cdb3ed4c427b9814e42c994e731c3a650808322e49421ec5d76565336e4b04663206f5e050303b200ab76177479b2c8876291a34d939d53
- SSDEEP 1536:LQa1nj3NElg6qPCxGlajWzb/9FOpusA2WCc3Vnwruagnj:PB6lg6qPWGlB9FOphA2WCc3Vwrurj
- TLSH T17A53E78477ED8621E6AE4EFE5D3191508B31F8779C23D78D0A84049E1A737808EECB67
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
nuvolex.com_nano.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
nuvolex.com_nano.exe
Resource
win11ltsc2024-20260911-en
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
http://nuvolex.com
-
ac7e2f05-8df7-4c55-8841-78385f6bb064
-
c2_url
http://nuvolex.com
-
version
1.2.2.0
Targets
-
- Target nuvolex.com_nano.exe
- Size 64KB
- SHA256 4828b09d00596b50a8cfd81a038726c0708a4a122505d3c6aed8b3e64166215f
- MD5 86a5355edcc102ad1bfc62e55a64f632
- SHA1 c7955301c0a15a74b16df53eac5949b26db44fb2
- SHA512 b445dc2a22b7b8580cdb3ed4c427b9814e42c994e731c3a650808322e49421ec5d76565336e4b04663206f5e050303b200ab76177479b2c8876291a34d939d53
- SSDEEP 1536:LQa1nj3NElg6qPCxGlajWzb/9FOpusA2WCc3Vnwruagnj:PB6lg6qPWGlB9FOphA2WCc3Vwrurj
- TLSH T17A53E78477ED8621E6AE4EFE5D3191508B31F8779C23D78D0A84049E1A737808EECB67
- MD5 SHA1 SHA512 SSDEEP TLSH
Contains code to disable Windows Defender
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
Modifies security service
Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
Grants admin privileges
Uses net.exe to modify the user's privileges.
Disables RegEdit via registry modification
Disables Task Manager via registry modification
Drops file in Drivers directory
Event Triggered Execution: Image File Execution Options Injection
Modifies Windows Firewall
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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.
Disables service(s)
Stops running service(s)
Adds Run key to start application
Creates a new local user account
Uses net.exe to create a new local user account, often for persistence or a backdoor account.
Discovers running processes
Running process information can be used to identify security tools or plan follow-on actions.
Drops file in System32 directory
Executes a VBScript file via the Windows Script Host.
Sets desktop wallpaper using registry
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
1