Malicious PDF — malware analysis report

Heuristics 5

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• 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.
• 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://cctraff.ru/aws?keyword=hombres+necios+que+acusais+resumen In PDF document text

  • https://cdn-cms.f-static.net/uploads/4385880/normal_5f9275153987d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389805/normal_5f9922ab0718e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377379/normal_5f8fe8568e358.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376625/normal_5f96315ea6977.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000ae4f.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000ae4f.bin)
  • https://uploads.strikinglycdn.com/files/35c9570c-e3a7-4b2c-b99b-9ba3940ac0fb/mazunawesosarusizegedudu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e0875d21-c814-4e1e-992d-c440c3b2b1ef/6343131440.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1aef92df-9ef5-4725-bed8-ec7669fb16a1/vajomizez.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/7853/5318/files/authorised_signatory_letter.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/6985/2833/files/14772376078.pdfIn PDF document text
  • https://s3.amazonaws.com/zedilegol/42241653232.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7d36260c-3293-43e2-be5b-0b629a8ec32c/katawa_shoujo_different_routes.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/3427/4723/files/59557610656.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8212a9dc-f183-4881-ac6a-5407beacfaf9/56773036067.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ace7d7fd-daff-4221-b3b4-01fc36693689/sasamutolozom.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0e2702a9-8cb6-49a2-b270-a42a8c5b05e0/til_i_hear_you_sing_sheet_music.pdfIn PDF document text
  • https://s3.amazonaws.com/mawesenasijoser/75909100125.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/395b968a-7256-44dc-8ea0-2a3e340e1d5b/classroom_aquatic_oyun_indir_club.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/aa4048b5-3571-42b2-835e-351fe7ace6c5/fujisaninujonepuxopulezob.pdfIn PDF document text
  • https://s3.amazonaws.com/fosalizuzu/the_linux_command_line_bible.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/zepananimipapotor.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/2064/6048/files/ar_guided_reading_level_conversion_chart.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/75a484c9-e017-46ee-be62-2a26c3815a12/tutuganawigukorano.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/891f67f5-851c-4b64-9fa1-45218914f6d5/jebimalimomerowivulinite.pdfIn PDF document text
  • https://s3.amazonaws.com/xesigeze/82177244952.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/8965/2648/files/56546893519.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 extracted file (font_00_sfnt_off0000ae4f.bin)

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