General
- Target c34af1f1f238747d6839ce6857138e97d722443c4e2a794c072c236228ceaa07.zip
- Size 4.3MB
- Sample260923-ckbbfacc43
- SHA256 9177371b72ef73e3cfd4979225a081d4ef7c4f7d916c9af950b90692c21d3d2d
Malware Config
Targets
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- Target c34af1f1f238747d6839ce6857138e97d722443c4e2a794c072c236228ceaa07.exe
- Size 4.3MB
- SHA256 c34af1f1f238747d6839ce6857138e97d722443c4e2a794c072c236228ceaa07
Score10/10-
Detects KillMBR
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Family: KillMBR
KillMBR is a trojan that attempts to overwrite the Master Boot Record.
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Possible privilege escalation attempt
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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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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Executes dropped EXE
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Modifies file permissions
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Adds Run key to start application
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File and Directory Permissions Modification: Windows File and Directory Permissions Modification
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Obfuscated Files or Information: Command Obfuscation
Adversaries may obfuscate content during command execution to impede detection.
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Executes a VBScript file via the Windows Script Host.
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
3PowerShell
1Visual Basic
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Scheduled Task/Job
1Scheduled Task
1Defense Evasion
File and Directory Permissions Modification
2Windows File and Directory Permissions Modification
1Hide Artifacts
1Hidden Files and Directories
1Modify Registry
1Obfuscated Files or Information
1Command Obfuscation
1