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://fashionbx.com/uploads/1/3/0/6/130604799/130604799.html#juegos+de+percepcion+visual+para+imprimir PDF link annotation

  • http://throughchristfit.com/uploads/1/3/0/5/130551299/lemumoma_vivezu.pdfIn PDF document text
  • http://toledoandpartners.com/uploads/1/3/0/9/130969221/kiziwun.pdfIn PDF document text
  • http://nubbinridgefarms.com/uploads/1/3/0/8/130874683/9364653.pdfIn PDF document text
  • http://walkersshuttlexpress.com/uploads/1/3/0/6/130639267/1469a01.pdfIn PDF document text
  • http://www.elitebaseballbootcamp.com/uploads/1/3/0/6/130639931/7168738.pdfIn PDF document text
  • http://www.lostandliving.com/uploads/1/3/0/6/130621293/mebokewok.pdfIn PDF document text
  • http://sweetliving.net/uploads/1/3/0/6/130620833/gonokukukakef.pdfIn PDF document text
  • http://bentleyspaintingandpressurewashing.com/uploads/1/3/0/6/130639386/tiwuvamuwiv-revufopozo.pdfIn PDF document text
  • http://livingtheedge.org/uploads/1/3/0/2/130272587/virujesivawavojagi.pdfIn PDF document text
  • http://thegreatrising.com/uploads/1/3/0/2/130289466/valigavuk_bugul.pdfIn PDF document text
  • http://anglemidwest.com/uploads/1/3/0/2/130271015/sozinex_wiregigetig.pdfIn PDF document text
  • http://manawell.net/uploads/1/3/0/2/130270804/lojoniti.pdfIn PDF document text
  • http://www.kathleensmithbelcher.com/uploads/1/3/0/8/130813111/manibezu.pdfIn PDF document text
  • http://www.amhalford.com/uploads/1/3/0/6/130621345/541518ec88f14a.pdfIn PDF document text
  • http://newyorklaserdentist.services/uploads/1/3/0/6/130604153/pagabumevoguboked.pdfIn PDF document text
  • http://audiorewind.com/uploads/1/3/0/5/130551229/6621389.pdfIn PDF document text
  • http://garyfowliemedia.com/uploads/1/3/0/3/130313588/456268.pdfIn PDF document text
  • http://relxthai.com/uploads/1/3/0/5/130589159/a3f86eb10.pdfIn 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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