Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba75235345c40a82…

MALICIOUS

PDF

21.6 KB Created: 2019-04-30 05:29:39 +01:00 Authoring application: mPDF 5.7
MD5: cd63da68b8c51f333c7fb626ea8a0869 SHA-1: 8e955f3562525bd16520b741032d8f69657eb788 SHA-256: ba75235345c40a82035e25f37ebebcc14e93d8eb705f7bcd1e41c25bd9b92a37
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, forming a link farm. The primary heuristic indicates this is a 'PDF_SEO_LINK_FARM' designed to direct users to external content. The ML classifier also flagged this as malicious with high confidence. No scripts were extracted, and the document body was largely unreadable, but the structure and URL distribution strongly suggest a malicious intent to redirect users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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://zacdsa.linkpc.net/5c54c54c55c58c58/-bord-du-n-grier-Une-histoire-atlantique-de-la-traite-L-Univers-historique-by-Marcus-Rediker.pdf
    • http://zacdsa.linkpc.net/6c56c55c54c59c53/Histoire-Et-Historiens-Depuis-Cinquante-ANS-Methodes-Organisations-Et-Resultats-Du-Travail-Historique-de-1876-a-1926-by-Revue-Historique.pdf
    • http://zacdsa.linkpc.net/5c56c53c53c50c54/Les-Ann-es-d-extermination-L-Allemagne-nazie-et-les-Juifs-1939-1945-L-Univers-historique-by-Saul-Friedl-nder.pdf
    • http://zacdsa.linkpc.net/5c52c55c53c55c53/Petite-Histoire-de-l-Univers-by-Stephen-Hawking.pdf
    • http://zacdsa.linkpc.net/2c50c50c51c55c52/Between-the-Devil-and-the-Deep-Blue-Sea-Merchant-Seamen-Pirates-and-the-Anglo-American-Maritime-World-1700-1750-by-Marcus-Rediker.pdf
    • http://zacdsa.linkpc.net/6c54c56c50c57c57/Modern-Mysteries-of-the-World-by-Janet-Bord-Colin-Bord.pdf
    • http://zacdsa.linkpc.net/4c53c51c56c56c53/Wish-Indigo-Dreams-1-by-Grier-Cooper.pdf
    • http://zacdsa.linkpc.net/7c56c59c59c54c53/Amirouche-Une-vie-deux-morts-un-testament---Une-histoire-alg-rienne-Histoire-et-perspectives-m-diterran-ennes-by-Said-Sadi.pdf
    • http://zacdsa.linkpc.net/7c57c58c58c57c54/La-Tournee-Des-Grands-Ducs-Les-Russes-Sur-La-Cote-Atlantique-by-Alexandre-de-La-Cerda.pdf
    • http://zacdsa.linkpc.net/7c50c57c55c57c52/Histoire-De-France-En-Bandes-Dessin-es-No-20---La-Commune-La-Troisieme-R-publique-Histoire-De-France-20-by-Jean-Ollivier.pdf
    • http://zacdsa.linkpc.net/6c57c56c51c53c56/LE-SECRET-DE-L-UNIVERS-by-Daniel-C-Braibant.pdf
    • http://zacdsa.linkpc.net/7c50c53c51c55c52/Traite-Tournois-Jouste-by-Menestrier.pdf
    • http://zacdsa.linkpc.net/7c55c50c59c57c55/Traite-Du-Debutant-by-Jean-Pierre-Prevost.pdf
    • http://zacdsa.linkpc.net/6c52c51c56c53c56/Court-Traite-Du-Paysage-by-Alain-Roger.pdf
    • http://zacdsa.linkpc.net/8c53c56c54c59c52/Hayao-Miyazaki-Cartographie-d-un-univers-by-Rapha-l-Colson.pdf
    • http://zacdsa.linkpc.net/8c55c53c55c54c51/Rabelais-s-Laughter-and-Joubert-s-Traite-Du-Ris-by-Gregory-de-Rocher.pdf
    • http://zacdsa.linkpc.net/3c56c52c53c54c53/Hollywood-Days-with-Hayes-by-Hayes-Grier.pdf
    • http://zacdsa.linkpc.net/6c58c53c55c53c51/Le-petit-Brillant-Le-b-b-le-plus-g-nial-de-l-Univers-by-Simon-James.pdf
    • http://zacdsa.linkpc.net/5c53c58c58c52c58/Trait-du-zen-et-de-l-entretien-des-motocyclettes-nouvelle-dition-by-Robert-M-Pirsig.pdf
    • http://zacdsa.linkpc.net/7c59c53c50c58c58/L-Univers-Penitentiaire-Du-Cote-Des-Surveillants-de-Prison-by-Dominique-Lhuilier.pdf
    • http://zacdsa.linkpc.net/2c50c50c