Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f8a298acd198bca…

MALICIOUS

PDF

28.4 KB Created: 2019-05-03 05:32:22 +01:00 Authoring application: mPDF 5.7
MD5: d97c6aaa6dd770485792b5e8b856a68a SHA-1: 0d3ff6b4a3c183279fc28da042704e21c1741f05 SHA-256: 8f8a298acd198bcacf78df90945fed307e1cab50f474496547413fc1a06a8b61
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. While many of these links resolve to benign content, the sheer volume and the ML classifier's high confidence score suggest a malicious intent, likely for SEO spam or to distribute further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9695

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://muicuiu.dumb1.com/9a06a03a01a03a05/Neopositivismus-Eine-Historische-Einf-hrung-In-Die-Philosophie-Des-Wiener-Kreises-by-Rudolf-Haller.pdf
    • http://muicuiu.dumb1.com/1a00a03a05a03a07a09/Rameaus-Neffe-Studien-Und-Untersuchungen-Zur-Einf-hrung-in-Goethes-bersetzung-Des-Diderotschen-Dialogs-by-Rudolf-Schlosser.pdf
    • http://muicuiu.dumb1.com/9a01a01a05a08a04/Ketogenes-Brot-Ketogenes-Brot-F-r-Anf-nger-Eine-Einf-hrung-in-Die-Ketogene-Ern-hrung-Inklusive-Vieler-Rezepte-Zum-Nachmachen-by-Paul-Turm.pdf
    • http://muicuiu.dumb1.com/9a03a08a00a01a05/Sichtbare-Religion-Eine-Einf-hrung-in-Die-Religionswissenschaft-by-Marie-Therese-Mader.pdf
    • http://muicuiu.dumb1.com/1a01a04a02a07a01a01/Geometrie-Der-Raumzeit-Eine-Mathematische-Einf-hrung-in-Die-Relativit-tstheorie-by-Rainer-Oloff.pdf
    • http://muicuiu.dumb1.com/1a01a07a07a07a05a04/Geldtheorie-Und-Geldpolitik-in-Europa-Eine-Problemorientierte-Einf-Hrung-Mit-Einem-Kompendium-Monet-Rer-Fachbegriffe-by-Dieter-Duwendag.pdf
    • http://muicuiu.dumb1.com/1a00a04a05a03a09a03/Einleitung-in-Die-Mengenlehre-Eine-Gemeinverst-ndliche-Einf-hrung-in-Das-Reich-Der-Unendlichen-Gr-ssen-by-Abraham-Adolf-Fraenkel.pdf
    • http://muicuiu.dumb1.com/1a00a01a05a09a04a00/Einf-hrung-Der-Reformation-in-Die-Kurmark-Brandenburg-Durch-Joachim-II-by-Paul-Steinmuller.pdf
    • http://muicuiu.dumb1.com/9a07a06a08a07a07/Einf-Hrung-in-Die-Getriebelehre-Analyse-Und-Synthese-Ungleichm-Ig-Bersetzender-Getriebe-by-Hanfried-Kerle.pdf
    • http://muicuiu.dumb1.com/9a08a05a01a07a08/Weihnachten-in-Altdeutscher-Malerei-Sechzehn-Gem-lde-Des-15-Und-16-Jahrhunderts-in-Farbiger-Wiedergabe-Mit-Einer-Einf-hrung-by-Hans-Naumann.pdf
    • http://muicuiu.dumb1.com/8a09a07a03a05a06/Nach-Kakanien-Annaherung-an-Die-Moderne-by-Rudolf-Haller.pdf
    • http://muicuiu.dumb1.com/1a01a02a02a03a02a04/Religion-Kirche-Theologie-Einf-hrung-in-Die-Theologie-by-Hermann-Mulert.pdf
    • http://muicuiu.dumb1.com/1a01a02a04a00a08a00/Wissensmanagement-Leitfaden-Fur-Die-Einf-Hrung-Von-Wissensmanagement-in-Unternehmen-by-Andreas-Langenhan.pdf
    • http://muicuiu.dumb1.com/9a03a05a01a07a04/Keine-Strafe-Ohne-Gesetz-Einf-hrung-in-Die-Dogmengeschichte-Des-Satzes-quot-nullum-Crimen-Nulla-Poena-Sine-Lege-quot-by-Volker-Krey.pdf
    • http://muicuiu.dumb1.com/1a00a09a08a07a07a02/Krebschirurgie-in-Heidelberg-Eine-Historische-Skizze-by-Herbert-Amberger.pdf
    • http://muicuiu.dumb1.com/1a01a02a04a06a04a04/Die-Zauberfl-te-Eine-Oper-mit-zwei-Gesichtern-Wiener-Vorlesungen-179-by-Jan-Assmann.pdf
    • http://muicuiu.dumb1.com/9a05a03a07a06a07/Briefe-eines-Narren-an-eine-N-rrin---Seraphine---Wiener-Eindr-cke-3-by-HardPress.pdf
    • http://muicuiu.dumb1.com/1a01a06a05a09a04a05/Missgeschicke-Eine-Philosophie-der-kleinen-und-gro-en-Katastrophen-by-Ulf-Heuner.pdf
    • http://muicuiu.dumb1.com/9a06a07a02a09a00/Kleist-Eine-Biographie-by-Rudolf-Loch.pdf
    • http://muicuiu.dumb1.com/8a01a06a00a03a08/Die-Wiedergewinnung-des-Wirklichen-Eine-Philosophie-des-Ichs-im-Zeitalter-der-Zerstreuung-by-Matthew-B-Crawford.pdf
    • http://muicuiu.dumb1.com/9a03a08a00a01a05/Si

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