General
- Target jaak.io_ransome.exe
- Size 39KB
- Sample260831-cn7ttaed47
- SHA256 3c3451d141c6b7a511e0b4e34fd4c8a7110c35881fc4d254fdb44955553e3e4d
- MD5 8e653bb1cfc15f91966001a6ddc7a947
- SHA1 be50e3ff9ec40d4ec05e6c19095bcbd92eb2a533
- SHA512 e659544f5c33a36441cfd7440665a16b9989833d41aca38da424b334adae869e5d4e8ec7fa36050b72895a6e087cfaa7ddba3074e71822078bf737b0abe36737
- SSDEEP 768:G0rxIjOIXz6qFQchJMIUhc+PQWWaJmoIs9+HNdEEusXqKhgayzZ:BxIjHzb8IofBmoIs9+tdf9Xqigp
- TLSH T12203F94437FD8628E1BF6ABB4D7282008775F8979D23D70D0ED5849E1AB3B4489D8B93
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
jaak.io_ransome.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
jaak.io_ransome.exe
Resource
win11ltsc2024-20260709-en
Malware Config
Extracted
-
nanocore
-
c2_port
22401
Targets
-
- Target jaak.io_ransome.exe
- Size 39KB
- SHA256 3c3451d141c6b7a511e0b4e34fd4c8a7110c35881fc4d254fdb44955553e3e4d
- MD5 8e653bb1cfc15f91966001a6ddc7a947
- SHA1 be50e3ff9ec40d4ec05e6c19095bcbd92eb2a533
- SHA512 e659544f5c33a36441cfd7440665a16b9989833d41aca38da424b334adae869e5d4e8ec7fa36050b72895a6e087cfaa7ddba3074e71822078bf737b0abe36737
- SSDEEP 768:G0rxIjOIXz6qFQchJMIUhc+PQWWaJmoIs9+HNdEEusXqKhgayzZ:BxIjHzb8IofBmoIs9+tdf9Xqigp
- TLSH T12203F94437FD8628E1BF6ABB4D7282008775F8979D23D70D0ED5849E1AB3B4489D8B93
- MD5 SHA1 SHA512 SSDEEP TLSH
-
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 one or more Microsoft Defender components
Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.
-
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.
-
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.
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1System Services
1Service Execution
1Windows Management Instrumentation
1Persistence
Account Manipulation
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create Account
1Local Account
1Create or Modify System Process
2Windows Service
2Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Account Manipulation
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create or Modify System Process
2Windows Service
2Scheduled 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
1