General
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Target
https://myapps.classlink.com/home
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Sample
241115-vfrrqsxjgy
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://myapps.classlink.com/home
Resource
win10v2004-20241007-en
Malware Config
Extracted
C:\Users\Admin\Downloads\@[email protected]
wannacry
115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn
Extracted
C:\Users\Admin\Downloads\msg\m_english.wnry
http://schemas.microsoft.com/office/word/2003/wordml}}\paperw12240\paperh15840\margl1501\margr1502\margt1701\margb1440\gutter0\ltrsect
Extracted
C:\Users\Admin\Downloads\r.wnry
wannacry
Targets
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Target
https://myapps.classlink.com/home
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Wannacry family
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
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Downloads MZ/PE file
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A potential corporate email address has been identified in the URL: [email protected]
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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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Modifies file permissions
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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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File and Directory Permissions Modification: Windows File and Directory Permissions Modification
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Legitimate hosting services abused for malware hosting/C2
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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
2Active Setup
1Registry Run Keys / Startup Folder
1Privilege Escalation
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Defense Evasion
File and Directory Permissions Modification
2Windows File and Directory Permissions Modification
1Hide Artifacts
1Hidden Files and Directories
1Indicator Removal
1File Deletion
1Modify Registry
4Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1