Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5265f13dc1605ff…

MALICIOUS

PDF

28.3 KB Created: 2019-04-30 03:32:36 +01:00 Authoring application: mPDF 5.7
MD5: 0a05fb1a0ae9a49f2eb5e18aa41aa115 SHA-1: 735b1b1099caa2a382c3daca73f5ea5e10fb6db6 SHA-256: f5265f13dc1605ffed9be43bddae9a624df5636d944e78ebd23b4950a2cee6df
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF document was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded URLs pointing to external PDF files, a technique often used for SEO poisoning or to redirect users to malicious content. The dominant host for these links is xiixmcuin.linkpc.net, which is suspicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

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://xiixmcuin.linkpc.net/8209204205204207/Der-Hans-Wurst-Streit-in-Wien-by-Karl-Von-Gorner.pdf
    • http://xiixmcuin.linkpc.net/9207209208201209/Stadtische-Wohnhausanlage-in-Wien-Zwischenkriegszeit-Karl-Marx-Hof-Sandleitenhof-Strindberghof-Karl-Seitz-Hof-Karl-Hoger-Hof-Klose-Hof-by-Source-Wikipedia.pdf
    • http://xiixmcuin.linkpc.net/9209206205207201/Sakralbau-in-Wien-Friedhof-in-Wien-Kirchengebaude-in-Wien-Kloster-in-Wien-Synagoge-in-Wien-Ruprechtskirche-Virgilkapelle-Schottens-by-Quelle-Wikipedia.pdf
    • http://xiixmcuin.linkpc.net/9209206205207200/Hochschule-in-Wien-Fachhochschule-in-Wien-Universitat-in-Wien-Technische-Universitat-Wien-Universitat-Fur-Bodenkultur-Wien-Ifa-Tulln-by-Quelle-Wikipedia.pdf
    • http://xiixmcuin.linkpc.net/1200209202201200205/Der-Streit-Um-Das-Kopernikanische-Weltsystem-Im-17-Jahrhundert-Galileo-Galileis-Akkommodationstheorie-Und-Ihre-Historischen-Hintergruende--Quellen---Kommentare---Uebersetzungen-by-Hans-Bieri.pdf
    • http://xiixmcuin.linkpc.net/9200203206200206/Wien-Die-Metropole-In-Alten-Fotografien-by-Hans-Petschar.pdf
    • http://xiixmcuin.linkpc.net/1200205202206209206/Marx-Und-Kant-Vortrag-Gehalten-in-Wien-Am-8-April-1904-by-Vorlander-Karl-1860-1928.pdf
    • http://xiixmcuin.linkpc.net/1200203200201207206/Platz-in-Wien-Heldenplatz-Liste-Der-Strassennamen-Von-Wien-Donaustadt-Liste-Der-Strassennamen-Von-Wien-Floridsdorf-by-Quelle-Wikipedia.pdf
    • http://xiixmcuin.linkpc.net/1200207202207207207/Iwan-der-Schreckliche-und-sein-Hund-by-Hans-Friedrich-Karl-Hoffmann.pdf
    • http://xiixmcuin.linkpc.net/1200209205209201204/Kirchenbauten-in-Niederosterreich-1945-1978-Anteil-Der-Erzdiozese-Wien-Auftrag-Aufbau-Und-Aufwand-Der-Kirche-Von-Wien-by-Norbert-Rodt.pdf
    • http://xiixmcuin.linkpc.net/1201208206200203209/Mittheilungen-Der-Anthropologischen-Gesellschaft-in-Wien-1884-Vol-14-Der-Neuen-Folge-4-Band-by-Anthropologische-Gesellschaft-in-Wien.pdf
    • http://xiixmcuin.linkpc.net/1201204203204205209/Distrib-YOU-S-A-by-A-Streit.pdf
    • http://xiixmcuin.linkpc.net/9208202206209202/Brust-oder-Flasche-by-Livia-G-rner.pdf
    • http://xiixmcuin.linkpc.net/1201206204203208200/Strasse-in-Wien-Innere-Stadt-Liste-Der-Strassennamen-Von-Wien-Innere-Stadt-Graben-Wiener-Ringstrasse-Schottengasse-Molker-Bastei-by-Quelle-Wikipedia.pdf
    • http://xiixmcuin.linkpc.net/1200203200201207205/Platz-in-Osterreich-Platz-in-Graz-Platz-in-Salzburg-Platz-in-Wien-Heldenplatz-Liste-Der-Strassennamen-Von-Wien-Donaustadt-by-Quelle-Wikipedia.pdf
    • http://xiixmcuin.linkpc.net/8208208202201205/London-Fragments-A-Literary-Expedition-by-R-diger-G-rner.pdf
    • http://xiixmcuin.linkpc.net/3205209200204200/Sun-and-Cross-The-Development-from-Megalithic-Culture-to-Early-Christianity-in-Ireland-by-Jakob-Streit.pdf
    • http://xiixmcuin.linkpc.net/1201204201203205202/Karl-May---Im-Reiche-des-silbernen-Loewen---Doppel-Band-III-und-IV-deutsch---German-Karl-May---Im-Reiche-des-silbernen-L-wen-2-by-Karl-May.pdf
    • http://xiixmcuin.linkpc.net/8209204204209204/Es-ist-mir-Wurst-by-Bernie-Martin.pdf
    • http://xiixmcuin.linkpc.net/8209204203205205/Die-Wurst-by-Rainer-Nemayer.pdf
    • http://xiixmcuin.linkpc.net/9209206205207200/Hochschule-in-Wien-Fachhochschule-in-Wien-Universitat-in-Wien-Technische-Universitat-W

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