Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ed310e6f39394ac…

MALICIOUS

PDF

28.4 KB Created: 2019-10-31 23:52:19 +00:00 Authoring application: mPDF 5.7
MD5: cca130fc2132f1f6cb3a0317e0a23ced SHA-1: f82a907fd4b95bfa8360943df003bf8d2435c342 SHA-256: 6ed310e6f39394ac7c9d0a618014985662cd528d61838fbbfeda05f75c7fac19
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. While the URLs themselves are currently marked as benign, the sheer volume and the nature of the heuristic suggest an attempt to manipulate search engine results or to distribute potentially malicious content through these links. No scripts were extracted, and the document body was unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9742

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://cefasfese.4pu.com/1730734739735733732/Transfusionsmedizin-an-Der-Universitat-Leipzig-Ein-Beitrag-Zur-Entwicklung-Des-Blutspendewesens-in-Deutschland-by-Jorg-Leupold.pdf
    • http://cefasfese.4pu.com/1730737734735738734/Die-Entwicklung-Des-Buchhandels-in-Leipzig-by-Albrecht-Kirchhoff.pdf
    • http://cefasfese.4pu.com/8738737732731731/Deutschland---Morgenland---Sorgenland---Gedankenprotokoll---trockene-Analyse-der-Entwicklung-in-Deutschland-der-letzten-Jahrzehnte-bis-heute-by-Johann-Kirschenhofer.pdf
    • http://cefasfese.4pu.com/1731738731730735738/Geschaftsmodelle-Quadruple-Play-Eine-Einschatzung-Der-Entwicklung-in-Deutschland-by-Christian-Hofbauer.pdf
    • http://cefasfese.4pu.com/1731730739732739733/Hirnforschung-in-Deutschland-1849-bis-1974-Briefe-zur-Entwicklung-von-Psychiatrie-und-Neurowissenschaften-sowie-zum-Einfluss-des-politischen-Umfeldes-auf-Wissenschaftler-by-J-rgen-Peiffer.pdf
    • http://cefasfese.4pu.com/1730738737737737732/In-Den-Weiten-Des-Pazifik---Mikronesien-Ausgewahlte-Objekte-Aus-Den-Sammlungen-Der-Museen-Fur-Volkerkunde-Zu-Leipzig-Und-Dresden-by-Leipzig-Museum-f-r-V-lkerkunde.pdf
    • http://cefasfese.4pu.com/1731736731733736737/LEIPZIG-und-seine-ZONE-bzw-Leipzig-und-seine-Gesund-h-Umweltzone-by-G-Recht.pdf
    • http://cefasfese.4pu.com/1730734739734734738/Memori-dari-Kalimantan-1921---1927-Dokumentasi-Foto-oleh-Ahli-Geologi-Swiss-Wolfgang-Leupold-Memories-from-Borneo-1921---1927-Photographs-by-the-Swiss-Geologist-Wolfgang-Leupold-by-Paola-von-Wyss-Giacosa.pdf
    • http://cefasfese.4pu.com/1730734739734739730/Destillate-by-Dagmar-Leupold.pdf
    • http://cefasfese.4pu.com/1730734739734733737/Exposition-Of-Genesis-by-H-C-Leupold.pdf
    • http://cefasfese.4pu.com/1731736738739733736/Akkulturationsstrategien-Und-Kulturelle-Identitat-Der-Tschechischen-Migranten-in-Deutschland-Kulturelle-Unterschiede-Zwischen-Tschechien-Und-Deutschland-by-Monika-Meinhardt.pdf
    • http://cefasfese.4pu.com/8736738735736733/Arbeitsgesetze---ArbG-Deutschland-by-Deutschland.pdf
    • http://cefasfese.4pu.com/8736738734732732/Praktisches-Roth-Und-H-lfsbuch-F-r-Deutsche-Auswanderer-Auf-Amerikanischen-Beden-Und-in-Allen-Rechtsverh-ltnissen-Des-Amerikanischen-Lebens-In-English-Und-Deutscher-Sprache-by-Deutschland-Deutschland.pdf
    • http://cefasfese.4pu.com/1730734739734734739/Exposition-of-Daniel-by-Herbert-C-Leupold.pdf
    • http://cefasfese.4pu.com/1730734739734739737/Exposition-of-Psalms-by-Herbert-C-Leupold.pdf
    • http://cefasfese.4pu.com/1730734739734739736/Expositon-Of-Isaiah-Volume-2-Only-Chapters-40-66-by-Herbert-C-Leupold.pdf
    • http://cefasfese.4pu.com/6731735733731732/The-Leipzig-Connection-by-Paola-Lionni.pdf
    • http://cefasfese.4pu.com/8734732738730739/Leopold-the-Liar-of-Leipzig-by-Francine-Prose.pdf
    • http://cefasfese.4pu.com/1730734739735733737/Design-of-Rare-Earth-Permanent-Magnets-Repm-and-Magnetic-Circuits-by-H-A-Leupold.pdf
    • http://cefasfese.4pu.com/1731732732737730735/Arno---Ein-Kaufmann-aus-Leipzig-Eine-Familiengeschichte-by-Sigrid-Lichtenberger.pdf

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