I figured out that it is triggered by Microsoft planning task - "Desired State Configuration - > Consistency".
Action: -NonInt -Window Hidden -Command "Invoke-CimMethod -Namespace root/Microsoft/Windows/DesiredStateConfiguration -Cl MSFT_DSCLocalConfigurationManager -Method PerformRequiredConfigurationChecks -Arguments @{Flags = [System.UInt32]1}"
Then iI run PS command Get-DscConfiguration
and find out that "Snow Inventory Agent" is involved.
Workaround: Configure "Desired State Configuration - > Consistency" job to run under SP Farm account(local admin + dbOwner).
If you know more elegant way, please suggest.