General
- Target zaav.io_ransome.exe
- Size 39KB
- Sample260820-m7z87avglc
- SHA256 fec55ecb6a38d70b2602acd9459e5a73973dd568ef0402d1ae7fde6df5f976cb
- MD5 aeb2d8ce75d290943f598cbfbe3eac7a
- SHA1 9c2be30437009f5d796854bf12e0a7b5afd49cd7
- SHA512 ca2a42fac22e9eb515a03df0f571a969ca42ff2b53a2af5c9da2e46b2de005cda408b816d4e1104fcfd6d78e2956827c1fe333cc137742c70d84c453f82089a9
- SSDEEP 768:h0rxIjOIXz6qFQchJMIUhc+PQWWaGmoIn9VHKdEEusXqKhgayzK:YxIjHzb8IofOmoIn9Vqdf9Xqiga
- TLSH T15303E84437FD8628E1BF6ABB4D7282008774F8979D23D70D0ED5849E1AB3B4489D9B93
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
zaav.io_ransome.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
zaav.io_ransome.exe
Resource
win11ltsc2024-20260709-en
Malware Config
Extracted
-
nanocore
-
c2_port
22401
Targets
-
- Target zaav.io_ransome.exe
- Size 39KB
- SHA256 fec55ecb6a38d70b2602acd9459e5a73973dd568ef0402d1ae7fde6df5f976cb
- MD5 aeb2d8ce75d290943f598cbfbe3eac7a
- SHA1 9c2be30437009f5d796854bf12e0a7b5afd49cd7
- SHA512 ca2a42fac22e9eb515a03df0f571a969ca42ff2b53a2af5c9da2e46b2de005cda408b816d4e1104fcfd6d78e2956827c1fe333cc137742c70d84c453f82089a9
- SSDEEP 768:h0rxIjOIXz6qFQchJMIUhc+PQWWaGmoIn9VHKdEEusXqKhgayzK:YxIjHzb8IofOmoIn9Vqdf9Xqiga
- TLSH T15303E84437FD8628E1BF6ABB4D7282008774F8979D23D70D0ED5849E1AB3B4489D9B93
- 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
2PowerShell
2Scheduled 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