BazarCall: Callback Phishing to Remote Access

An accounts-payable coordinator received a spoofed subscription invoice with no attachment and no link -- just a phone number to call. The call center talked her into installing a remote-management tool, and from there the operator moved fast: enumeration, a persistence scheduled task, a Cobalt Strike stager, and a pivot attempt toward the domain controller. Reconstruct the chain from the lure email through the RMM session and the second-stage beacon.