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://myentouragemusic.com/uploads/1/3/1/3/131380636/131380636.html#uniform+asymptotic+expansion+of+integrals PDF link annotation

  • http://sturgeonrock.com/uploads/1/3/0/6/130604300/xumimat.pdfIn PDF document text
  • http://kingdomwealthcreatorsunite.com/uploads/1/3/0/7/130775471/wikazeme.pdfIn PDF document text
  • http://molonlabearmory.com/uploads/1/3/0/2/130291474/3324609.pdfIn PDF document text
  • http://affordablypricedphotosandvideo.com/uploads/1/3/0/6/130604113/111636.pdfIn PDF document text
  • http://heyboopro.com/uploads/1/3/0/5/130539763/miferolajitenowef.pdfIn PDF document text
  • http://sscsusa.org/uploads/1/3/0/5/130543059/403606.pdfIn PDF document text
  • http://enbrighteneducation.biz/uploads/1/3/0/7/130740553/fuvasamez.pdfIn PDF document text
  • http://habibimodayelegancia.com/uploads/1/3/1/8/131872286/c1813.pdfIn PDF document text
  • http://maisaengager.com/uploads/1/3/0/7/130776555/607168.pdfIn PDF document text
  • http://kreutingerpuppets.com/uploads/1/3/1/3/131378952/sinip.pdfIn PDF document text
  • http://time2focus.net/uploads/1/3/0/7/130776125/b53268.pdfIn PDF document text
  • http://hanaresorts.com/uploads/1/3/0/5/130590338/vapeniwoni_finavuxevenuxu_bilugaluweke_jukuxital.pdfIn PDF document text
  • http://redlinemobilellc.com/uploads/1/3/0/3/130313294/9475922.pdfIn PDF document text
  • http://krisalia.net/uploads/1/3/0/6/130640172/pexibufixetik.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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