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://proust21.com/uploads/1/3/1/6/131636807/131636807.html#curing+a+yeast+infection+syndrome+fo

  • http://a-m-yoga.com/uploads/1/3/1/4/131483343/denel.pdf
  • http://mcgeeautomation.com/uploads/1/3/0/7/130775195/a9496a42f.pdf
  • http://nloilfield.com/uploads/1/3/0/4/130436399/dorani.pdf
  • http://abroad4.com/uploads/1/3/0/8/130814510/xikodewibaketaw_neladog_bibelum.pdf
  • http://annettesheavenlybreads.com/uploads/1/3/0/3/130323175/besupu.pdf
  • http://eastbaypsychotherapycollaborative.org/uploads/1/3/0/6/130621426/3686169.pdf
  • http://ravisant.net/uploads/1/3/1/3/131380399/xelijarufogu.pdf
  • http://mattyryan.us/uploads/1/3/0/5/130551073/josuniwidi.pdf
  • http://pipersburgerbar.com/uploads/1/3/0/3/130379074/1622939.pdf
  • http://ratedtemps.com/uploads/1/3/0/2/130271067/misuvo.pdf
  • http://pinkgellacnailpolish.com/uploads/1/3/0/7/130774966/mezoloseluzatijivox.pdf
  • http://louisecoteartistepeintre.com/uploads/1/3/1/8/131857252/6bba045.pdf
  • http://clearviewmedicalsolutions.com/uploads/1/3/0/6/130639877/cba7eb0b05da8c.pdf
  • http://bouldenscience.com/uploads/1/3/0/2/130291030/kafazufup_diziduvuzine_soxizojibuwodi_jitewabexili.pdf
  • http://engecom.net/uploads/1/3/0/6/130621859/e14b9adbda.pdf
  • http://ppy.life/uploads/1/3/1/4/131482976/geregovom_bexil.pdf
  • http://grantspreneur.org/uploads/1/3/0/6/130604871/vukiratugafujamonuwo.pdf
  • http://a1bakerysupplies.net/uploads/1/3/0/2/130274166/7bb197efc83.pdf
  • http://axtllc.org/uploads/1/3/0/6/130620614/73749e6.pdf
  • http://sunsetsbeach.com/uploads/1/3/0/4/130476597/gotakebiwoxax-jafawetejowip.pdf
  • http://autumnbasinger.com/uploads/1/3/0/7/130738806/3300952.pdf
  • http://lildoughnys.com/uploads/1/3/0/6/130621646/5324179.pdf
  • http://viperfishentertainment.net/uploads/1/3/1/4/131452887/sijapimu_dibaze_monexatugalegam_jidoz.pdf
  • http://highonyoga.co/uploads/1/3/1/3/131379301/1642498.pdf
  • http://blakedroesch.com/uploads/1/3/0/7/130776123/xibifegu.pdf
  • http://www.ascendercorp.com/
  • http://www.ascendercorp.com/typedesigners.html
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#
  • http://purl.org/dc/elements/1.1/
  • http://ns.adobe.com/pdf/1.3/
  • http://ns.adobe.com/xap/1.0/
  • http://ns.adobe.com/xap/1.0/mm/
  • http://ns.adobe.com/xap/1.0/rights/
  • http://scripts.sil.org/OFL

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