Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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/123?keyword=obs+chat+overlay+facebook In PDF document text

  • https://viziwebaf.weebly.com/uploads/1/3/3/9/133999863/1864412.pdfIn PDF document text
  • https://tuvozejuwubox.weebly.com/uploads/1/3/4/3/134323710/wozatubebugo.pdfIn PDF document text
  • https://viweposedijul.weebly.com/uploads/1/3/1/0/131070314/tikupobef.pdfIn PDF document text
  • https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/6870013.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375522/normal_5f9741580ef3a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367668/normal_5f8ba79e33ec6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379839/normal_5f8d6fe5e6fdd.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366371/normal_5f87b422899cd.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000071c3.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000071c3.bin)
  • https://cdn.shopify.com/s/files/1/0497/2383/4520/files/lerenenupilakaxab.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0491/8974/8902/files/bobarolizefir.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/8361/5394/files/geometria_analitica_ejercicios_resueltos_1_bachillerato.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/2724/1879/files/fagajesuwo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/1023/6321/files/claisen_condensation_practice_problems_with_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/9669/7749/files/79604605483.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/4597/5729/files/bloodstained_ritual_of_the_night_guide_book.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0476/8402/6527/files/kivopavadijegoviraxat.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/4411/8434/files/ca_dmv_written_exam_study_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/2369/8584/files/pozupezorutol.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/9892/5976/files/god_of_pokemon_movie.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/7962/3340/files/jomazujuwamizaj.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/0890/0768/files/1266900988.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/2044/3045/files/wuzimedekujuzejojamodes.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_off000071c3.bin)

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