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://trentriverdesigns.com/uploads/1/3/0/7/130738559/130738559.html#formula+para+circunferencia+de+circulo PDF link annotation

  • http://bidwelloptometry.net/uploads/1/3/0/8/130874025/pevofebolisomut_zuvemoj_lokezosuwe.pdfIn PDF document text
  • http://prakrutigroups.com/uploads/1/3/0/5/130590622/9e1c806ee3.pdfIn PDF document text
  • http://happyhomehelper.com/uploads/1/3/0/7/130740477/zebozupag_jevamabitituro_zegulotun.pdfIn PDF document text
  • http://anxietydepressionbreakthrough.com/uploads/1/3/0/4/130435813/7f7e93b.pdfIn PDF document text
  • http://ptamarymunfordelementaryschool.com/uploads/1/3/0/5/130544968/7f37202c63a.pdfIn PDF document text
  • http://slatteneyecare.com/uploads/1/3/0/8/130813489/8559812.pdfIn PDF document text
  • http://bobodigitalmarketing.com/uploads/1/3/0/2/130271058/doruwedilari-sadizoguwaxe-nomijanivaz.pdfIn PDF document text
  • http://hvacmarketingexpertteam.com/uploads/1/3/0/8/130814868/8d7ddf.pdfIn PDF document text
  • http://utopiamind.com/uploads/1/3/0/6/130621383/nadevi.pdfIn PDF document text
  • http://cleaners-barn.com/uploads/1/3/0/2/130289475/fa53380.pdfIn PDF document text
  • http://southernstylelawncarenc.com/uploads/1/3/0/8/130873740/8848931.pdfIn PDF document text
  • http://amocpro.com/uploads/1/3/0/7/130776324/674b3857e1b.pdfIn PDF document text
  • http://delaneybuyshouses.com/uploads/1/3/0/8/130874212/69906c6f.pdfIn PDF document text
  • http://applepickndays.com/uploads/1/3/0/7/130775375/zilekazoxubil.pdfIn PDF document text
  • http://diamondsmaidshomecleaning.com/uploads/1/3/1/1/131164447/4307850.pdfIn PDF document text
  • http://kellyslay.com/uploads/1/3/0/3/130313271/189146.pdfIn PDF document text
  • http://chatthillscommunity.com/uploads/1/3/0/7/130740464/fodifejefu.pdfIn PDF document text
  • http://midnightepiphanymusic.net/uploads/1/3/0/7/130776239/8886690.pdfIn PDF document text
  • http://newenglandsmartenergyllc.com/uploads/1/3/0/7/130738837/noxeg-zovukukog-vesuvi.pdfIn PDF document text
  • http://maschasprints.studio/uploads/1/3/0/6/130604758/puxaregifu.pdfIn PDF document text
  • http://giftacademyinc.com/uploads/1/3/0/5/130550782/mitutili.pdfIn PDF document text
  • http://linux.thai.net/projects/fonts-tlwgIn PDF document text
  • http://www.thaitux.infoIn 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
  • 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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