General
- Target cryptokafe.io_nano.exe
- Size 64KB
- Sample260910-skelvstwaw
- SHA256 2eb74d26c109566fbba3f40d5f843b5c61329e8defcf97cb8370956880e2fe2c
- MD5 df9479c08c22d6b8ae1c986fca083aec
- SHA1 f1e60cd6c43f3e07df5edbbc4e60a9faa9420158
- SHA512 854169f29dbea2a47514a4c14da04a1d50c35105185cff999f16fb5b5f7a5278ef6cffd3f4f18fab99348cec064d1f0628a78795da4669d05cfdf4e5ebf3f114
- SSDEEP 1536:2acS+3QARi3PipykX/9SOpuKA2WCc3VnwLuagnp:tcdRi3P6p9SOp3A2WCc3VwLurp
- TLSH T1D053D78477E98620E5EF4EFE4D3291104B31F867AD23D78D0A95549E1A72780CEECB27
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
cryptokafe.io_nano.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
cryptokafe.io_nano.exe
Resource
win11ltsc2024-20260710-en
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
http://cryptokafe.io
-
ac7e2f05-8df7-4c55-8841-78385f6bb064
-
c2_url
http://cryptokafe.io
-
version
1.2.2.0
Targets
-
- Target cryptokafe.io_nano.exe
- Size 64KB
- SHA256 2eb74d26c109566fbba3f40d5f843b5c61329e8defcf97cb8370956880e2fe2c
- MD5 df9479c08c22d6b8ae1c986fca083aec
- SHA1 f1e60cd6c43f3e07df5edbbc4e60a9faa9420158
- SHA512 854169f29dbea2a47514a4c14da04a1d50c35105185cff999f16fb5b5f7a5278ef6cffd3f4f18fab99348cec064d1f0628a78795da4669d05cfdf4e5ebf3f114
- SSDEEP 1536:2acS+3QARi3PipykX/9SOpuKA2WCc3VnwLuagnp:tcdRi3P6p9SOp3A2WCc3VwLurp
- TLSH T1D053D78477E98620E5EF4EFE4D3291104B31F867AD23D78D0A95549E1A72780CEECB27
- 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.
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Grants admin privileges
Uses net.exe to modify the user's privileges.
-
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.
-
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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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
Direct 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