General
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Target
https://github.com/Da2dalus/The-MALWARE-Repo
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Sample
240723-sehfkawdjn
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://github.com/Da2dalus/The-MALWARE-Repo
Resource
win10-20240404-en
Malware Config
Extracted
C:\Users\Admin\Downloads\!Please Read Me!.txt
wannacry
15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1
Targets
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Target
https://github.com/Da2dalus/The-MALWARE-Repo
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Modifies WinLogon for persistence
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Downloads MZ/PE file
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Drops file in Drivers directory
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Modifies RDP port number used by Windows
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Sets service image path in registry
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Drops startup file
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Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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Executes dropped EXE
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Impair Defenses: Safe Mode Boot
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Loads dropped DLL
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Boot or Logon Autostart Execution: Authentication Package
Suspicious Windows Authentication Registry Modification.
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Drops file in System32 directory
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Sets desktop wallpaper using registry
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
4Authentication Package
1Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Event Triggered Execution
1Component Object Model Hijacking
1Privilege Escalation
Boot or Logon Autostart Execution
4Authentication Package
1Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Event Triggered Execution
1Component Object Model Hijacking
1Defense Evasion
Direct Volume Access
1Impair Defenses
1Safe Mode Boot
1Indicator Removal
2File Deletion
2Modify Registry
6Subvert Trust Controls
2Install Root Certificate
1SIP and Trust Provider Hijacking
1