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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
• 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=permutation+and+combination+worksheet+answer+key In PDF document text

  • https://cdn-cms.f-static.net/uploads/4403118/normal_5f97c7a547d0d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382201/normal_5f93438487c4f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373271/normal_5f90ecaec97cf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379973/normal_5f8e31de0534a.pdfIn PDF document text
  • https://sevurefomofib.weebly.com/uploads/1/3/4/4/134451272/5203097.pdfIn PDF document text
  • https://bewupoterefi.weebly.com/uploads/1/3/1/3/131380107/6278248.pdfIn PDF document text
  • https://xulajaxosu.weebly.com/uploads/1/3/4/3/134366267/xodirekixenesaz_baxak.pdfIn PDF document text
  • https://fotejisatowonu.weebly.com/uploads/1/3/2/3/132302873/jiwaxefegeja.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366027/normal_5f8a10db1cf9c.pdfIn PDF document text
  • https://desemezek.weebly.com/uploads/1/3/4/4/134458593/381baf0763f.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00008a30.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00008a30.bin)
  • https://cdn.shopify.com/s/files/1/0482/9374/0705/files/vietnamese_tea_ceremony_dress.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/9043/4456/files/download_aplikasi_v_recorder_pro_mod_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/8425/7724/files/fizig.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0488/4080/2469/files/apprendre__dessiner_pas__pas.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/8360/2366/files/graeme_base_animalia.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/2544/8091/files/a_list_of_all_ledger_accounts_with_their_balances_at_a_point_in_time_is_called.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/7877/9047/files/anti_obesity_drugs_list.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/0699/4850/files/kajolekiwetemijobopobebo.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_off00008a30.bin)

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