Malicious PDF — malware analysis report

Static analysis result for SHA-256 a868d80e66bbb2e5…

MALICIOUS

PDF

13.1 KB Created: 2019-05-02 01:18:51 +01:00 Authoring application: mPDF 5.7
MD5: 39d6efa89af5233963ff590b1df0878b SHA-1: 36dc06721dc55af0f0990266f7792a1fe883eb1d SHA-256: a868d80e66bbb2e55f2d0399ba51bda48697ad11275d7183d597d838d1925f2a
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded URLs, forming a link farm. The primary heuristic indicates this is a SEO link farm, suggesting a deceptive purpose. While the URLs themselves are marked as benign, the sheer volume and structure point towards an attempt to manipulate search results or lure users to potentially malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8891

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://loaminoo.linkpc.net/9098095092096099/The-Woman-in-White-by-Wilkie-Collins---Delphi-Classics-Illustrated-Delphi-Parts-Edition-Wilkie-Collins-by-Wilkie-Collins.pdf
    • http://loaminoo.linkpc.net/3099097097099095/No-Name-by-Wilkie-Collins.pdf
    • http://loaminoo.linkpc.net/2095091093091097/The-Moonstone-by-Wilkie-Collins.pdf
    • http://loaminoo.linkpc.net/8094099093093/Basil-by-Wilkie-Collins.pdf
    • http://loaminoo.linkpc.net/2095093097094098/The-Law-and-the-Lady-by-Wilkie-Collins.pdf
    • http://loaminoo.linkpc.net/8093092097093/Armadale-by-Wilkie-Collins.pdf
    • http://loaminoo.linkpc.net/1091098099095097094/The-Moonstone-by-Wilkie-Collins.pdf
    • http://loaminoo.linkpc.net/3095098096096094/The-Moonstone-by-Wilkie-Collins.pdf
    • http://loaminoo.linkpc.net/1091097094094096091/The-Moonstone-by-Wilkie-Collins.pdf
    • http://loaminoo.linkpc.net/3095092098092095/The-Moonstone-by-Wilkie-Collins.pdf
    • http://loaminoo.linkpc.net/3095091096097090/After-Dark-by-Wilkie-Collins.pdf
    • http://loaminoo.linkpc.net/1090098094096098091/Miss-or-Mrs-by-Wilkie-Collins.pdf
    • http://loaminoo.linkpc.net/2092095093097095/The-Moonstone-by-Wilkie-Collins.pdf
    • http://loaminoo.linkpc.net/4094099099099099/The-Law-and-the-Lady-by-Wilkie-Collins.pdf
    • http://loaminoo.linkpc.net/8094095097096096/The-Woman-in-White-by-Wilkie-Collins.pdf
    • http://loaminoo.linkpc.net/3094097098099096/The-Woman-in-White-by-Wilkie-Collins.pdf
    • http://loaminoo.linkpc.net/9091090093094094/The-Woman-in-White-by-Wilkie-Collins.pdf
    • http://loaminoo.linkpc.net/7096092096091093/The-Woman-in-White-by-Wilkie-Collins.pdf
    • http://loaminoo.linkpc.net/2096091092096099/The-Haunted-Hotel-by-Wilkie-Collins.pdf
    • http://loaminoo.linkpc.net/7096098091093098/Fie-Fie-or-the-Fair-Physician-by-Wilkie-Collins.pdf

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