Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ba5df5da279b802…

MALICIOUS

PDF

28.4 KB Created: 2019-04-30 06:13:21 +01:00 Authoring application: mPDF 5.7
MD5: 6128bafe7b1b4be199843c39424fc28c SHA-1: f0a8d544027f305e3c2fd0f7cea40d12c07eef2c SHA-256: 1ba5df5da279b80230db3e977bf2277ad1de5cfbf2df7f5134beed5345204d2f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier also flagged this PDF as malicious. While the specific intent of the linked PDFs is unclear, the sheer volume and the heuristic firing suggest a malicious attempt to redirect the user. 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/1a01a01a08a04a06a09/Zwischen-Amt-Und-Neigung-Lebensbericht-Aus-D-Zeit-Nach-1945-by-Gerhard-Storz.pdf
    • http://muicuiu.dumb1.com/1a01a01a08a05a03a08/Capriccios-by-Gerhard-Storz.pdf
    • http://muicuiu.dumb1.com/1a00a02a06a02a05a06/Die-Zeit-auf-alten-Uhren-Ein-Album-by-Gerhard-K-pf.pdf
    • http://muicuiu.dumb1.com/1a00a03a09a01a08a04/Fruhere-Verhaltnisse-Kunst-in-Wien-Nach-45-by-Gerhard-Habarta.pdf
    • http://muicuiu.dumb1.com/1a01a06a06a00a04a01/Wandlungen-Des-Literaturbegriffs-in-Den-Deutschsprachigen-L-ndern-Seit-1945-by-Gerhard-P-Knapp.pdf
    • http://muicuiu.dumb1.com/8a06a08a02a02a00/Auf-der-Suche-nach-der-verlorenen-Zeit-Sieben-B-nde-in-einem-Ebook-by-Marcel-Proust.pdf
    • http://muicuiu.dumb1.com/1a00a02a03a03a04a01/Auf-der-Suche-nach-der-verlorenen-Zeit-Werke-Frankfurter-Ausgabe---7-B-nde-in-Kassette-by-Marcel-Proust.pdf
    • http://muicuiu.dumb1.com/1a00a08a02a00a09a02/Das-Geheimnis-meiner-Mutter-Nach-einer-wahren-Begebenheit-aus-der-Zeit-des-Dritten-Reichs-by-J-L-Witterick.pdf
    • http://muicuiu.dumb1.com/1a00a05a03a09a05a01/Die-Zeit-War-Aus-Den-Fugen-Pommern-1945-Bericht-Eines-Kosliner-Jungen-Kommentare-by-Arnulf-Otto-Sprunck.pdf
    • http://muicuiu.dumb1.com/1a00a04a00a05a03a07/Erinnerung-an-Diktatur-und-Krieg-Brennpunkte-des-kulturellen-Ged-chtnisses-zwischen-Russland-und-Deutschland-seit-1945-by-Andreas-Wirsching.pdf
    • http://muicuiu.dumb1.com/1a00a02a01a08a05a03/Fundst-cke-Die-Deportation-der-Juden-aus-Deutschland-und-ihre-verdr-ngte-Geschichte-nach-1945-by-Akim-Jah.pdf
    • http://muicuiu.dumb1.com/9a01a08a02a01a00/Von-der-Mosel-nach-Arkadien-Johann-Franciscus-Ermels-1641-1693-als-K-nstler-in-seiner-Zeit-by-Stephan-Brakensiek.pdf
    • http://muicuiu.dumb1.com/1a01a08a01a00a07a04/Galgenv-gel-Oder-Die-Im-Dunkeln-Kriegt-Man-Nicht-Ungekl-rte-Kriminalf-lle-Nach-1945-by-Robert-Geher.pdf
    • http://muicuiu.dumb1.com/1a00a01a07a09a09a01/Gregor-Samsa-will-nach-Hause-Gedichte-einer-verlorenen-Zeit-by-Hans-Jurgen-Hilbig-Hilbig.pdf
    • http://muicuiu.dumb1.com/9a07a00a03a07a01/-SAMMELBAND-Neigung-zum-Sklaventum-by-Lisa-Leuchten.pdf
    • http://muicuiu.dumb1.com/1a00a03a09a02a05a04/Helle-Zeit-Dunkle-Zeit-In-Memoriam-Albert-Einstein-by-Carl-Seelig.pdf
    • http://muicuiu.dumb1.com/1a01a00a02a08a09a08/Quo-Vadis---Geschichte-aus-der-Zeit-Neros-Vollst-ndige-deutsche-Ausgabe-Eine-Liebesgeschichte-in-der-Zeit-der-Christenverfolgungen-by-Henryk-Sienkiewicz.pdf
    • http://muicuiu.dumb1.com/1a01a06a05a01a00a02/Wer-dich-so-liebt-Lebensbericht-einer-J-din-by-Edith-Bruck.pdf
    • http://muicuiu.dumb1.com/9a06a02a09a06a00/Jemand-singt-in-mir-Lebensbericht-eines-Schizophrenen-by-Hans-Kutscher.pdf
    • http://muicuiu.dumb1.com/1a01a01a06a01a06a05/Die-sch-nsten-Eisenbahnen-der-Schweiz-50-traumhafte-Zugstrecken-zwischen-Bodensee-Genfer-See-und-Lago-Maggiore-zwischen-Rheinfall-und-Matterhorn---mit-Infos-zu-jeder-Lok-mit-Zug-by-Dietmar-Beckmann.pdf
    • http://muicuiu.dumb1.com/1a00a02a03a03a04a01/Auf-der-Suche-nach-der-verlorenen-Zeit-Werke-Frankfurter-Ausgabe---7-B-nde-in-Kassette

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