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://seumenha.ru/wix?keyword=easeus+manual+backup PDF link annotation

  • https://cdn.sqhk.co/gewanunu/tidvhdb/bruce_buffer_it_s_time_sound_clip.pdfIn PDF document text
  • https://cdn.sqhk.co/bulenupulabo/ehdigia/lasiwubanolor.pdfIn PDF document text
  • https://legorigerelok.weebly.com/uploads/1/3/6/0/136056749/jexoxojelap.pdfIn PDF document text
  • https://cdn.sqhk.co/wularumijif/5q9iija/classic_piano_house_music.pdfIn PDF document text
  • https://cdn.sqhk.co/lojumisebu/hdjfxgg/halloween_party_day_2019_amsterdam.pdfIn PDF document text
  • https://cdn.sqhk.co/puxedimuwo/ehd3Jgc/50102782745.pdfIn PDF document text
  • https://cdn.sqhk.co/bigokukanuf/ZWibpjf/recharge_a_cuba_por_ding.pdfIn PDF document text
  • https://cdn.sqhk.co/patagarinixa/cjakegd/80687019866.pdfIn PDF document text
  • https://cdn.sqhk.co/podogule/ehbgBig/ted_talks_brene_brown_shame.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/tenunud/mudobuzabotosalenak.pdfIn PDF document text
  • https://s3.amazonaws.com/fonazuzixagizir/thickness_of_sheetrock_for_walls.pdfIn PDF document text
  • https://s3.amazonaws.com/wixanarer/zafejuravivasulesile.pdfIn PDF document text
  • https://s3.amazonaws.com/farowug/solving_the_structure_of_dna_worksheet_answers.pdfIn PDF document text
  • https://s3.amazonaws.com/jeromopelurab/form_cease_and_desist_letter_trademark.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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