Russian Dolls Malicious Script Delivering Ursnif, (Thu, Jul 11th)

As a result of my hunting jobs, I found an interesting piece of obfuscated script. This one looks really like Russian dolls because multiple levels of obfuscation are implemented. It is invoked via WMIC, the command client that performs Windows Management Instrumentation (WMI) operations from a command prompt. If WMI is known to be a management solution (to get status of local and remote Windows hosts), it is able to perform a lot of interesting stuff like changing settings, managing users and… spawn processes. Example:

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