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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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 https://bologen.ru/wb?keyword=facebook%20private%20video%20er%20apk PDF link annotation

  • https://roxagidu.weebly.com/uploads/1/3/4/7/134748987/xapisojiremuti-pajatajovoru-ruxenewega.pdfIn PDF document text
  • http://potolkilife.ru/word_collect_answers_level_159362qky.pdfIn PDF document text
  • https://xujuwoxevosu.weebly.com/uploads/1/3/4/8/134896670/pogejafonare-fonos-bisidavemej-wutobinumok.pdfIn PDF document text
  • https://porukugo.weebly.com/uploads/1/3/1/3/131380087/pivisusowovanobev.pdfIn PDF document text
  • http://damita.fun/pocket_rocket_bike_for_adultsroh9b.pdfIn PDF document text
  • https://tolejavufagus.weebly.com/uploads/1/3/1/4/131437822/5055320.pdfIn PDF document text
  • http://airet.space/the_third_party_mangac7sn0.pdfIn PDF document text
  • http://thehensleys.org/57821281250xwulm.pdfIn PDF document text
  • http://wirelessinfo.ru/circuits_phet_lab_answer_key6gq8s.pdfIn PDF document text
  • http://joteruzawareba.iblogger.org/lacerte_tax_planner_user_guide.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/wuvepilamamuse/characteristics_of_matter_worksheet_grade_1.pdfIn PDF document text
  • https://s3.amazonaws.com/fajetufekejo/1245127027.pdfIn PDF document text
  • https://s3.amazonaws.com/befafuni/fexadudisopotonope.pdfIn PDF document text
  • https://s3.amazonaws.com/lusabifef/nelotus.pdfIn PDF document text
  • http://wexewowi.rf.gd/58718678903.pdfIn PDF document text
  • https://s3.amazonaws.com/dukavunivifa/dhoonde_akhiyan_ringtone_mr_jatt.pdfIn PDF document text
  • https://s3.amazonaws.com/xetasif/salary_payslip_template_free.pdfIn PDF document text
  • https://s3.amazonaws.com/fuvidokibet/jazud.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://scripts.sil.org/OFLIn PDF document text

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