Malicious PDF — malware analysis report

Static analysis result for SHA-256 736a6a098cb67a16…

MALICIOUS

PDF

21.6 KB Created: 2019-05-03 06:26:59 +01:00 Authoring application: mPDF 5.7
MD5: e8d1d0755171f4e5ca66a4081d503cd7 SHA-1: ad3641bcef56b211ec45ab24e3491444f1d8811e SHA-256: 736a6a098cb67a166cd78c174fdea2f26a79ecab5d862e085288536000d0b737
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded URLs, identified as a link farm, which is a common tactic for SEO manipulation or distributing malicious content. The ML classifier also flagged this PDF as malicious. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic firing suggest a malicious intent to redirect users to potentially harmful content.

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://cefasfese.4pu.com/7737735730737738/Les-Liaisons-dangereuses-de-Choderlos-de-Laclos---Lettre-LXXXI-Commentaire-de-texte-by-Monia-Ouni.pdf
    • http://cefasfese.4pu.com/7732736736739738/Les-Liaisons-Dangereuses-Ou-Lettres-Recueillies-Dans-Une-Soci-t-amp-Publi-es-Pour-l-Instruction-de-Quelques-Autres-Par-M-C-de-L--of-2-Volume-2-by-Choderlos-de-Laclos.pdf
    • http://cefasfese.4pu.com/8739733734738/Dangerous-Liaisons-by-Pierre-Choderlos-de-Laclos.pdf
    • http://cefasfese.4pu.com/7732736734733737/Oeuvres-de-Laclos-by-Pierre-Choderlos-de-Laclos.pdf
    • http://cefasfese.4pu.com/5737735733733730/Laclos-Liaisons-Dangereuses-by-Simon-Davies.pdf
    • http://cefasfese.4pu.com/7732736735736730/In-the-Garden-of-Good-and-Evil-The-Love-and-Punishment-of-Choderlos-de-Laclos-in-Dangerous-Liaisons-by-K-J-Cleveland.pdf
    • http://cefasfese.4pu.com/7730733734731739/Laclos-Et-Le-Libertinage-1782-1982-Actes-Du-Colloque-Du-Bicentenaire-Des-Liaisons-Dangereuses-by-Unknown.pdf
    • http://cefasfese.4pu.com/8737733731730732/Die-Gef-hrlichen-Bekanntschaften-Oder-Briefe-Gesammelt-In-Einer-Gesellschaft-Und-Zur-Belehrung-Einiger-Anderer-Bekanntgemacht-by-Pierre-Choderlos-de-Laclos.pdf
    • http://cefasfese.4pu.com/5737735731736731/Dangereuses-affinit-s-by-Meredith-Wild.pdf
    • http://cefasfese.4pu.com/5737735731736730/Les-Liasons-Dangereuses-by-Roger-Vadim.pdf
    • http://cefasfese.4pu.com/5737735732734731/R-bellions-Dangereuses-by-Luigi-Savagnone.pdf
    • http://cefasfese.4pu.com/5737735733733733/Attention-personnalit-s-dangereuses-by-Joe-Navarro.pdf
    • http://cefasfese.4pu.com/7732736735737733/MOTS-CROIS-S-16-by-Michel-Laclos.pdf
    • http://cefasfese.4pu.com/6737736735732739/Le-Tombeau-de-Pierre-Pierre-Gripari-1925-1990-by-Jean-Charles-Angrand.pdf
    • http://cefasfese.4pu.com/7732736735737731/MOTS-CROIS-S-121-GRANDES-GRILLES-by-Michel-Laclos.pdf
    • http://cefasfese.4pu.com/7732736736735731/Le-Syst-me-Du-Libertinage-De-Cr-billon-Laclos-by-Colette-Cazenobe.pdf
    • http://cefasfese.4pu.com/5733737736738735/Pierre-Deux-s-Brittany-Pierre-Moulin-by-Linda-Dannenberg.pdf
    • http://cefasfese.4pu.com/5734733736733733/La-Seduction-Policiere-Signes-de-Croissance-D-Un-Genre-Repute-Mineur-Pierre-Magnan-Daniel-Pennac-Et-Quelques-Autres-by-Pierre-Verdaguer.pdf
    • http://cefasfese.4pu.com/5734737735733730/La-vie-amoureuse-de-Pierre-de-Ronsard-by-Pierre-de-Nolhac.pdf
    • http://cefasfese.4pu.com/7732736734734734/Models-of-Reading-Paragons-and-Parasites-in-Richardson-Burney-and-Laclos-by-Martha-J-Koehler.pdf