Malicious PDF — malware analysis report

Heuristics 5

• 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.
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• 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://deborahsnider.com/uploads/1/3/0/5/130588769/130588769.html#derecho+ambiental+chileno+pdf PDF link annotation

  • http://bloodandbone.com/uploads/1/3/1/4/131438128/xilufinud_kewepaxowo_fexitiv.pdfIn PDF document text
  • http://bettyfoleyartquilts.com/uploads/1/3/0/2/130291556/e7031.pdfIn PDF document text
  • http://michiganreflexology.com/uploads/1/3/0/4/130477249/3344162.pdfIn PDF document text
  • http://lonewolftattoos.com/uploads/1/3/0/4/130483052/bizuxi.pdfIn PDF document text
  • http://oombagaonline.com/uploads/1/3/0/4/130436190/mezufefo.pdfIn PDF document text
  • http://tylerfites.com/uploads/1/3/0/5/130547078/nogekugusawemanilet.pdfIn PDF document text
  • http://tlicioustreats.com/uploads/1/3/0/2/130287278/puref-tisuseni-fuduponudumube-tagekitajaba.pdfIn PDF document text
  • http://borirepa.com/uploads/1/3/1/4/131436956/96eab58a5.pdfIn PDF document text
  • http://learn-tarot.com/uploads/1/3/0/3/130323889/mamodemoleg.pdfIn PDF document text
  • http://techitup.org/uploads/1/3/0/6/130639311/dimudeweja.pdfIn PDF document text
  • http://youthnowfarm.ca/uploads/1/3/1/3/131378838/zewuk.pdfIn PDF document text
  • http://der-lab.org/uploads/1/3/0/7/130775443/4d575bcd21.pdfIn PDF document text
  • http://datafluxvoicevideodatasolutions.com/uploads/1/3/0/4/130476712/jexozajarotel_zepakuzejeme_zajumumemabajun_fisizemetuv.pdfIn PDF document text
  • http://citizenimmigrant.com/uploads/1/3/0/6/130605291/4877012.pdfIn PDF document text
  • http://online-personal-coach.nl/uploads/1/3/1/4/131437615/kadel_mogevu_riruwivixesubek.pdfIn PDF document text
  • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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