General
- Target www.venturesir.com_ransome.exe
- Size 39KB
- Sample261027-3ln7ssxvew
- SHA256 14faaaaa9c8555603d088eeee46332641867785370826ab6ef6e18e67b21ad98
- MD5 4a9e45e7e820cdcb674f932805450ca4
- SHA1 1562fedf9254d95b20fa124e6a510e68d99318cd
- SHA512 b403cbd51ed3aa249d197a70f3d540452081423d372686ef7af0c56eb113fde0f226f11db3211cc7cc03a43a0ad17f993ab89a5738f06706a2483b00733883ba
- SSDEEP 768:CYAwcQIzbnqN48lw2OFr2moIE9iHLdEEusXqKh2ayzc:6wctbX8alamoIE9irdf9Xqi2s
- TLSH T13E03F84037FD8628E1BF6ABB4D3196008775F8979D13D70D0ED1848E1AB3B448AE9B93
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
www.venturesir.com_ransome.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
www.venturesir.com_ransome.exe
Resource
win11ltsc2024-20260911-en
Malware Config
Extracted
-
nanocore
-
c2_port
22401
Targets
-
- Target www.venturesir.com_ransome.exe
- Size 39KB
- SHA256 14faaaaa9c8555603d088eeee46332641867785370826ab6ef6e18e67b21ad98
- MD5 4a9e45e7e820cdcb674f932805450ca4
- SHA1 1562fedf9254d95b20fa124e6a510e68d99318cd
- SHA512 b403cbd51ed3aa249d197a70f3d540452081423d372686ef7af0c56eb113fde0f226f11db3211cc7cc03a43a0ad17f993ab89a5738f06706a2483b00733883ba
- SSDEEP 768:CYAwcQIzbnqN48lw2OFr2moIE9iHLdEEusXqKh2ayzc:6wctbX8alamoIE9irdf9Xqi2s
- TLSH T13E03F84037FD8628E1BF6ABB4D3196008775F8979D13D70D0ED1848E1AB3B448AE9B93
- 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.
Drops file in System32 directory
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