General
- Target tmahalrestaurant.com_nano.exe
- Size 64KB
- Sample261015-en69dsbc83
- SHA256 cedcec5a9ee57d9c664c7f500dc3d5bf08b1f3021224540342b208b2cfc157d2
- MD5 8f1e166d4bce0675a5d3e7a7bca97c8b
- SHA1 f7ea71b51c9de601153f1746dba3d7a7c36ee561
- SHA512 31689999649ea6988140beda79ba7bdc251187996980316af91a72ba53ac606132d930f1c3f09007409de948e51c228c428489f09a4c8681c1f3f4ce35e35cf9
- SSDEEP 1536:fuWKs2iTzg2UPUwnqNvRTo/9tOpu9A2WCc3VnwRuagn3:mxszg2UPqNZy9tOpsA2WCc3VwRur3
- TLSH T15953C78477FD8621E5FF4EFE4D3195118731F867AC22D78D0A95048E1AB2780CAE8B67
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
tmahalrestaurant.com_nano.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
tmahalrestaurant.com_nano.exe
Resource
win11ltsc2024-20260911-en
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
http://tmahalrestaurant.com
-
ac7e2f05-8df7-4c55-8841-78385f6bb064
-
c2_url
http://tmahalrestaurant.com
-
version
1.2.2.0
Targets
-
- Target tmahalrestaurant.com_nano.exe
- Size 64KB
- SHA256 cedcec5a9ee57d9c664c7f500dc3d5bf08b1f3021224540342b208b2cfc157d2
- MD5 8f1e166d4bce0675a5d3e7a7bca97c8b
- SHA1 f7ea71b51c9de601153f1746dba3d7a7c36ee561
- SHA512 31689999649ea6988140beda79ba7bdc251187996980316af91a72ba53ac606132d930f1c3f09007409de948e51c228c428489f09a4c8681c1f3f4ce35e35cf9
- SSDEEP 1536:fuWKs2iTzg2UPUwnqNvRTo/9tOpu9A2WCc3VnwRuagn3:mxszg2UPqNZy9tOpsA2WCc3VwRur3
- TLSH T15953C78477FD8621E5FF4EFE4D3195118731F867AC22D78D0A95048E1AB2780CAE8B67
- 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
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