General
- Target cakhialink.online_nano.exe
- Size 64KB
- Sample261102-j384raav6l
- SHA256 0ab1ca31bde3bc106843a107b0318f8497fc74a8f4c725e07eabfcdd9c8155bc
- MD5 0f2222581a6a4e2795166c5ddce5c4dd
- SHA1 5bf2c9bbbcc5a93e0ab7d107236265bd95e0ae1b
- SHA512 6808a4d0e1c4f031d9e0c6bca2bd5dcf60a1befeaa17abe701090b07e3982209d604129eb2aa9b11873b454d46dfea50bf05942c1fb12deb769e541a43e55396
- SSDEEP 1536:ka6TGhsYNpm8YLPOrTAXq/9hOpu8A2WCc3VnwzuagnP:n0Ipm8YLPgd9hOpBA2WCc3VwzurP
- TLSH T1A653E88477E98621E5FF4AFE5D31A1114B31F8679C23D78E0A85049D1AB2784CEECB27
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
cakhialink.online_nano.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
cakhialink.online_nano.exe
Resource
win11ltsc2024-20260911-en
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
http://cakhialink.online
-
ac7e2f05-8df7-4c55-8841-78385f6bb064
-
c2_url
http://cakhialink.online
-
version
1.2.2.0
Targets
-
- Target cakhialink.online_nano.exe
- Size 64KB
- SHA256 0ab1ca31bde3bc106843a107b0318f8497fc74a8f4c725e07eabfcdd9c8155bc
- MD5 0f2222581a6a4e2795166c5ddce5c4dd
- SHA1 5bf2c9bbbcc5a93e0ab7d107236265bd95e0ae1b
- SHA512 6808a4d0e1c4f031d9e0c6bca2bd5dcf60a1befeaa17abe701090b07e3982209d604129eb2aa9b11873b454d46dfea50bf05942c1fb12deb769e541a43e55396
- SSDEEP 1536:ka6TGhsYNpm8YLPOrTAXq/9hOpu8A2WCc3VnwzuagnP:n0Ipm8YLPgd9hOpBA2WCc3VwzurP
- TLSH T1A653E88477E98621E5FF4AFE5D31A1114B31F8679C23D78E0A85049D1AB2784CEECB27
- 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
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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
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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
-
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.
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Disables service(s)
-
Stops running service(s)
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Adds Run key to start application
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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
1