Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba66e684dfc06b2e…

MALICIOUS

PDF

13.9 KB Created: 2019-05-02 17:16:12 +01:00 Authoring application: mPDF 5.7
MD5: 3a2aa66e2d9a61c8fbc4cfadf8c3c30e SHA-1: f8fe969fc2991e527f4723cc68266e7407da21d6 SHA-256: ba66e684dfc06b2e32847fd8d8a19513bce9dbd442b428068e6716757911004d
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links to external PDF documents, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier strongly indicated maliciousness. While the specific URLs themselves are currently marked as benign, the sheer volume and structure of the links suggest a malicious intent to drive traffic or potentially host further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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/9093096096091/Proposed-Roads-to-Freedom-Socialism-Anarchism-and-Syndicalism-by-Bertrand-Russell.pdf
    • http://loaminoo.linkpc.net/5096098091096098/The-Autobiography-of-Bertrand-Russell-1-1872-1914-by-Bertrand-Russell.pdf
    • http://loaminoo.linkpc.net/6094093097091/Collected-Stories-of-Bertrand-Russell-by-Bertrand-Russell.pdf
    • http://loaminoo.linkpc.net/5098093090090/The-Autobiography-of-Bertrand-Russell-by-Bertrand-Russell.pdf
    • http://loaminoo.linkpc.net/5096098091091099/Bertrand-Russell-by-Bertrand-Russell.pdf
    • http://loaminoo.linkpc.net/9090090099096/What-I-Believe-by-Bertrand-Russell.pdf
    • http://loaminoo.linkpc.net/5096097099097095/Bertrand-Russell-s-Best-by-Bertrand-Russell.pdf
    • http://loaminoo.linkpc.net/8096098098099/Has-Man-a-Future-by-Bertrand-Russell.pdf
    • http://loaminoo.linkpc.net/5096098091098095/Philosophical-Essays-by-Bertrand-Russell.pdf
    • http://loaminoo.linkpc.net/1090092097097092099/The-Problems-of-Philosophy-by-Bertrand-Russell.pdf
    • http://loaminoo.linkpc.net/5096098090095091/Wisdom-of-the-West-by-Bertrand-Russell.pdf
    • http://loaminoo.linkpc.net/3093096094099099/In-Praise-of-Idleness-by-Bertrand-Russell.pdf
    • http://loaminoo.linkpc.net/3099095098090096/Principia-Mathematica-to-56-by-Bertrand-Russell.pdf
    • http://loaminoo.linkpc.net/2099092093092090/The-Principles-of-Mathematics-by-Bertrand-Russell.pdf
    • http://loaminoo.linkpc.net/4093091098092092/Principia-Mathematica-by-Bertrand-Russell.pdf
    • http://loaminoo.linkpc.net/3091093096092090/The-Problems-of-Philosophy-by-Bertrand-Russell.pdf
    • http://loaminoo.linkpc.net/4099098093092090/Authority-and-the-Individual-by-Bertrand-Russell.pdf
    • http://loaminoo.linkpc.net/5096098090094097/Introducing-Bertrand-Russell-by-Dave-Robinson.pdf
    • http://loaminoo.linkpc.net/8091096090098098/Einf-hrung-in-die-Mathematische-Philosophie-by-Bertrand-Russell.pdf
    • http://loaminoo.linkpc.net/5096098091098091/An-Inquiry-Into-Meaning-and-Truth-by-Bertrand-Russell.pdf

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