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://ecplusllc.com/uploads/1/3/1/4/131454051/131454051.html#atharva+veda+sanskrit+with+english+translation+pdf PDF link annotation

  • http://torrintowindows.be/uploads/1/3/0/4/130489627/zabanovujasisasimuza.pdfIn PDF document text
  • http://cdbtpsych.com/uploads/1/3/0/5/130588334/fakulepu.pdfIn PDF document text
  • http://catherinejonespaediatricdietitian.com/uploads/1/3/0/9/130969874/5745012.pdfIn PDF document text
  • http://lovefalkirk.com/uploads/1/3/0/5/130590724/a88e95bb3.pdfIn PDF document text
  • http://wonderproduct.jp/uploads/1/3/0/3/130379352/5019610.pdfIn PDF document text
  • http://neilswriting.com/uploads/1/3/0/6/130605212/wuxixagivep_nifatal.pdfIn PDF document text
  • http://bucketsofbrassandcopper.com/uploads/1/3/0/5/130550768/mitojijovo.pdfIn PDF document text
  • http://the7thwindowstore.com/uploads/1/3/0/2/130273733/7797248ba421622.pdfIn PDF document text
  • http://njbrickwork.com/uploads/1/3/0/6/130605143/zukufevawiboja-wawagidawunon-sutujap.pdfIn PDF document text
  • http://theinterdependentorganization.com/uploads/1/3/0/3/130379213/1140953.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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
  • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn 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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