General
- Target marubiru-bekkan.com_ransome.exe
- Size 39KB
- Sample260824-tk2baseb49
- SHA256 1a9b086bdfdd5cca9b7d08aeb982ae604e57003a8cdd4adad4111980fc2a5665
- MD5 20eae42b23cf48d809dd79280b10731d
- SHA1 1ab629e3070928f774e5a8fe8c9572a1f3462cc0
- SHA512 33487ef25d2f119926ab638d248c0775e7522e1d5f024f6133278bb530bcec9b21a862c7fee20d309b87538bb9150497cb7f7b75d5e118892eea6dc6a8ffd17c
- SSDEEP 768:+kr0Yq2YHzFql9az1YWJ1moI89YH6dEEusXqKhWayzk:10YqfzZz1YW/moI89Yadf9XqiWU
- TLSH T14C03E94437FD8628E1BF6BBB4D7286008775F8979D13D70D0ED1848E1AB3B448A99B93
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
marubiru-bekkan.com_ransome.exe
Resource
win11ltsc2024-20260709-en
Malware Config
Extracted
-
nanocore
-
c2_port
22401
Targets
-
- Target marubiru-bekkan.com_ransome.exe
- Size 39KB
- SHA256 1a9b086bdfdd5cca9b7d08aeb982ae604e57003a8cdd4adad4111980fc2a5665
- MD5 20eae42b23cf48d809dd79280b10731d
- SHA1 1ab629e3070928f774e5a8fe8c9572a1f3462cc0
- SHA512 33487ef25d2f119926ab638d248c0775e7522e1d5f024f6133278bb530bcec9b21a862c7fee20d309b87538bb9150497cb7f7b75d5e118892eea6dc6a8ffd17c
- SSDEEP 768:+kr0Yq2YHzFql9az1YWJ1moI89YH6dEEusXqKhWayzk:10YqfzZz1YW/moI89Yadf9XqiWU
- TLSH T14C03E94437FD8628E1BF6BBB4D7286008775F8979D13D70D0ED1848E1AB3B448A99B93
- 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
-
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