Malware
HiddenLotus
According to Malwarebytes, The HiddenLotus "dropper" is an application named Lê Thu Hà (HAEDC).pdf, using an old trick of disguising itself as a document - in this case, an Adobe Acrobat file.
HiddenLotus is a macOS malware family.
Background
Malwarebytes reports that the HiddenLotus "dropper" arrives as an application called Lê Thu Hà (HAEDC).pdf, relying on the long-established ploy of masquerading as a document — here, an Adobe Acrobat PDF file.
Source: Malpedia (Fraunhofer FKIE).