Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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://geelongtreeservice.com/uploads/1/3/0/4/130489006/130489006.html#free++manager+portable PDF link annotation

  • http://4leggedwalks.com/uploads/1/3/0/2/130273762/lelusiwijiwal.pdfIn PDF document text
  • http://indigofibershed.com/uploads/1/3/0/8/130815059/tanatatitexon_fisinemoje_jasuxaroka.pdfIn PDF document text
  • http://handsolo101.com/uploads/1/3/0/6/130620455/c8c883d99d51.pdfIn PDF document text
  • http://creativecontent.app/uploads/1/3/0/6/130620370/6dbad73d.pdfIn PDF document text
  • http://rcgfunclub.club/uploads/1/3/0/7/130738914/f7ed915e391.pdfIn PDF document text
  • http://theawesomecornershop.com/uploads/1/3/0/5/130590026/tuvasadik_wirerisuniweri_dapad_rezalajobuweb.pdfIn PDF document text
  • http://buildtherelationship.com/uploads/1/3/0/5/130589302/vafetekoguzi.pdfIn PDF document text
  • http://homemadebabies.org/uploads/1/3/1/3/131383464/gonizukogureb.pdfIn PDF document text
  • http://tacwc.com/uploads/1/3/1/3/131379590/0e2669ae.pdfIn PDF document text
  • http://vinyldecorwithmelanie.com/uploads/1/3/0/7/130775867/a28d14eb4628f.pdfIn PDF document text
  • http://oopsiedaisies.com/uploads/1/3/0/8/130814652/neporok-nubewanetap.pdfIn PDF document text
  • http://wafflesmiles.net/uploads/1/3/1/4/131413222/befizod-lisekikajaxuli-biwulirosozet-gujibako.pdfIn PDF document text
  • http://stilettosandshotguns.com/uploads/1/3/0/5/130550684/rukopomowexux.pdfIn PDF document text
  • http://mamaloveprelovedpregnancybabyandbeyond.com/uploads/1/3/1/4/131438397/c71c4dc6e.pdfIn 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://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

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