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://adsl-63-204-18-26.benefitplans.org/uploads/1/3/1/4/131406547/131406547.html#kenken+answers+key PDF link annotation

  • http://massagetherapistsacramento.com/uploads/1/3/1/4/131408062/nosalemubaxikebafore.pdfIn PDF document text
  • http://bhombproof.com/uploads/1/3/0/5/130588845/mikuzibim.pdfIn PDF document text
  • http://jcslcompany.org/uploads/1/3/0/4/130483939/dulakenilipi_zagofezubusi_valagev.pdfIn PDF document text
  • http://3gxef.bpmtc.com/uploads/1/3/0/7/130739308/1881a685fe6.pdfIn PDF document text
  • http://cleekhcomm2034su19.com/uploads/1/3/0/8/130874326/vepesiwuz_bojijuze_mirukif.pdfIn PDF document text
  • http://wwwlakelandspineandhealthrathdrum.com/uploads/1/3/0/7/130739322/da8a8fde69563d2.pdfIn PDF document text
  • http://bridesmaiddressesnewhampshire.com/uploads/1/3/0/4/130435746/defibiwax_laxagije.pdfIn PDF document text
  • http://executivemotorcoach.net/uploads/1/3/1/8/131858043/17d7bffd9d9b323.pdfIn PDF document text
  • http://scottibgood.net/uploads/1/3/1/0/131070325/visifur_kadapolevexadag_dodinixuxezobim.pdfIn PDF document text
  • http://livinginfaithandfitnesseveryday.com/uploads/1/2/9/4/129430316/129430316.html?aventurasIn 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
  • http://scripts.sil.org/OFLIn PDF document text

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