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=williams+hematology+9e+pdf+free+download In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369901/normal_5f93f84f689d7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368487/normal_5f9058c818d21.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369932/normal_5f883b7cd3c4e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371783/normal_5f8e20d7f3b84.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376869/normal_5f8e00dde0f50.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369327/normal_5f8d2720ad179.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367920/normal_5f8e6e7b5e556.pdfIn PDF document text
  • https://dubuzosokiboxof.weebly.com/uploads/1/3/1/1/131163723/pewatijosasag.pdfIn PDF document text
  • https://nudojafobedem.weebly.com/uploads/1/3/1/3/131379550/6924962.pdfIn PDF document text
  • https://zixotojene.weebly.com/uploads/1/3/4/3/134315054/nafotexakelofisex.pdfIn PDF document text
  • https://lubukapilibuvi.weebly.com/uploads/1/3/4/0/134095968/5964323.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000072ac.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000072ac.bin)
  • https://cdn.shopify.com/s/files/1/0433/7808/1959/files/gta_vice_city_jetpack_cheat_code_android.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/7066/8448/files/77255241652.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/1966/3522/files/tofewol.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/2856/0547/files/5728271552.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/6996/3939/files/software_editor_portable.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/7274/9721/files/allergic_rhinitis_treatment_guidelines_australia.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/5834/3317/files/86949184870.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/8796/9438/files/parts_of_a_speaker_box.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0462/9918/5312/files/74651130061.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/7993/2320/files/kailua_intermediate_school.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6176a046-53cb-4bd1-b108-f3a964796b89/fanudexewogovilatedoju.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/af07a0bd-328c-46e5-9218-cf8a629d2061/sukapidofilurazizipadile.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a6047c7b-2cae-4040-befd-4cd80b3ab127/exercicios_de_quadrilateros_8_ano_resolvidos.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/21ecb38b-396f-4f7e-af71-08bb2494c92d/54932262874.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dbfd6091-2707-4f11-b19e-f31e3f003646/rozemudenesomufozupisatez.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_off000072ac.bin)

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