General
- Target cakhiatv39.mx_nano.exe
- Size 64KB
- Sample261024-ntwvaayx6r
- SHA256 e268b3ec872180f2fccbb703300fe71d31a165477e1beccdefb8324da2fecfbb
- MD5 d0441778cb28658b02ec371e319effed
- SHA1 ac4b41c442bf0fb09f0df86de7f5bbcd103968da
- SHA512 92942b9b1ee76cde143f858b93e92c842f1e6c7710d4f2d78c362ef59ef5333c1c364c09ad5da47d8f91b028c5f35171867fbad1169ddb35559b72aab9fc59e5
- SSDEEP 1536:jacS+3QARi3Pipyk3/9SOpuyA2WCc3VnwQuagnB:ucdRi3P6B9SOp/A2WCc3VwQurB
- TLSH T16B53C78477E98620E5EF4EFE4D3191104B31F867AD23D78E0A95549E1A72780CEECB27
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
cakhiatv39.mx_nano.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
cakhiatv39.mx_nano.exe
Resource
win11ltsc2024-20260911-en
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
http://cakhiatv39.mx
-
ac7e2f05-8df7-4c55-8841-78385f6bb064
-
c2_url
http://cakhiatv39.mx
-
version
1.2.2.0
Targets
-
- Target cakhiatv39.mx_nano.exe
- Size 64KB
- SHA256 e268b3ec872180f2fccbb703300fe71d31a165477e1beccdefb8324da2fecfbb
- MD5 d0441778cb28658b02ec371e319effed
- SHA1 ac4b41c442bf0fb09f0df86de7f5bbcd103968da
- SHA512 92942b9b1ee76cde143f858b93e92c842f1e6c7710d4f2d78c362ef59ef5333c1c364c09ad5da47d8f91b028c5f35171867fbad1169ddb35559b72aab9fc59e5
- SSDEEP 1536:jacS+3QARi3Pipyk3/9SOpuyA2WCc3VnwQuagnB:ucdRi3P6B9SOp/A2WCc3VwQurB
- TLSH T16B53C78477E98620E5EF4EFE4D3191104B31F867AD23D78E0A95549E1A72780CEECB27
- 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