In early September 2016, a new advertisement appeared on various Darknet platforms, promoting a new hidden service. The service, dubbed Open Hacking Lab (OHL), offers three categories of products: hacking tools and resources, hacked credentials and services. While numerous hidden services on the Darknet sell hacked credentials, this is the first time we have observed the sale of administrator credentials for Office 365 accounts.
Microsoft Office 365 is a software package that includes cloud services, sold to corporates and private customers. The organizational package includes email, storage, social network, SharePoint and other services provided via cloud. Acquiring administrator’s access to organization that use Office 365 will provide a potential attacker with access to sensitive organizational information and may even lead to the threat actor gaining full control over the organization network.
Currently, 12 accounts are being offered for sale, with prices ranging from $15 for a logistics company account to $100 for a law firm. For each company, the seller provides a short description of the company, its country of origin, and which data the buyer will gain access to. Eight of these companies are based in the U.S., two in Europe and two in Canada.
The operator of the hidden service is a well-known actor in several communities on the Darknet; he is considered credible and he possesses high technical skills. The hidden service owner also runs a Twitter account dedicated to the service, where he updates about the platform and its products.