Malware
Sync-Scheduler
According to Cyfirma, Sync-Scheduler is a dedicated document stealer that targets Word documents, Excel Spreadsheets, PowerPoint presentations, PDFs and ZIP compress files.
Sync-Scheduler is a Windows malware family.
Background
Cyfirma reports that Sync-Scheduler is a purpose-built document stealer focused on Word documents, Excel Spreadsheets, PowerPoint presentations, PDFs and ZIP compress files. Written in C++, it ships with anti-analysis and defense-evasion capabilities, obfuscating its code and shutting itself down whenever it spots an analysis environment.
Source: Malpedia (Fraunhofer FKIE).