General
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Target
https://bingwallpaper.microsoft.com/Windows/bing/bing-wallpaper/
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Sample
241216-kbmxwasldw
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://bingwallpaper.microsoft.com/Windows/bing/bing-wallpaper/
Resource
win10v2004-20241007-en
windows10-2004-x64
24 signatures
150 seconds
Malware Config
Targets
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Target
https://bingwallpaper.microsoft.com/Windows/bing/bing-wallpaper/
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Blocklisted process makes network request
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Downloads MZ/PE file
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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Adds Run key to start application
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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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Sets desktop wallpaper using registry
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MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1