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://maritasdesign.com/uploads/1/3/0/6/130640090/130640090.html#formula+para+sacar+area+del+triangulo+rectangulo PDF link annotation

  • http://independentadultcarehomeassociation.com/uploads/1/3/0/8/130813135/9943960.pdfIn PDF document text
  • http://canepallc.com/uploads/1/3/0/6/130604517/4689420.pdfIn PDF document text
  • http://mhcchurch.org/uploads/1/3/0/4/130491852/jotefepo.pdfIn PDF document text
  • http://www.designsbyjael.shop/uploads/1/3/0/2/130272853/danibilaboko.pdfIn PDF document text
  • http://lavigant.com/uploads/1/3/0/7/130776279/1312820d75.pdfIn PDF document text
  • http://littleloonz.com/uploads/1/3/0/6/130603855/1885728.pdfIn PDF document text
  • http://www.eastnicolausffa.com/uploads/1/3/0/7/130775163/jopexo.pdfIn PDF document text
  • http://www.walshengland.com/uploads/1/3/0/5/130540767/5501568.pdfIn PDF document text
  • http://www.myvacationadventurescostarica.com/uploads/1/3/0/6/130639681/7904244.pdfIn PDF document text
  • http://melanysaad.com/uploads/1/3/0/6/130605030/7549544.pdfIn PDF document text
  • http://simplybright.net/uploads/1/3/0/8/130874219/7486414.pdfIn PDF document text
  • http://californiaspiritscompany.com/uploads/1/3/1/1/131164474/f39095f978c4.pdfIn PDF document text
  • http://dirainternational.co.uk/uploads/1/3/0/6/130640190/xizufideb_zalufosonodite.pdfIn PDF document text
  • http://linux.thai.net/projects/fonts-tlwgIn PDF document text
  • http://www.thaitux.infoIn 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://www.adobe.com/).NotoIn PDF document text
  • http://www.google.com/get/noto/http://www.adobe.com/type/ThisIn PDF document text
  • http://scripts.sil.org/OFLNotoIn PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
  • https://savannah.gnu.org/projects/freefont/In PDF document text
  • http://www.gnu.org/licenses/In PDF document text
  • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text

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