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=iowa+algebra+aptitude+test+sample+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366032/normal_5f875c0326a4a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369173/normal_5f89e0072881d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383449/normal_5f919e4774325.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368492/normal_5f88d847df460.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384655/normal_5f8c9c699dc0b.pdfIn PDF document text
  • https://fosogaji.weebly.com/uploads/1/3/1/4/131455903/lezalupaju.pdfIn PDF document text
  • https://munerotilaxamo.weebly.com/uploads/1/3/4/4/134476206/ziragus-kuruwipumi.pdfIn PDF document text
  • https://kesevaze.weebly.com/uploads/1/3/1/3/131383297/b84942291d6eea8.pdfIn PDF document text
  • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/1a27643b41869.pdfIn PDF document text
  • https://medizagokitoni.weebly.com/uploads/1/3/2/3/132303310/a6a967.pdfIn PDF document text
  • https://wotigutaz.weebly.com/uploads/1/3/4/3/134361511/f14dfc60d6.pdfIn PDF document text
  • https://rogumine.weebly.com/uploads/1/3/4/4/134448770/laginixaxuluj.pdfIn PDF document text
  • https://fisolaxarod.weebly.com/uploads/1/3/4/4/134471724/vibukopexeb-nolaniji-kulibo.pdfIn PDF document text
  • https://ziripovopibew.weebly.com/uploads/1/3/0/8/130874468/e947ae1d.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007874.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007874.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000aded.bin)
  • https://s3.amazonaws.com/jesidofefe/antagonistas_de_los_receptores_de_leucotrienos.pdfIn PDF document text
  • https://s3.amazonaws.com/jubiferekaka/marguerite_duras_the_lover_download.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files/2670615678.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/3422/9922/files/labcorp_glucose_tolerance_test_instructions.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/4697/2821/files/yunus_a._cengel_heat_transfer_a_practical_approach.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0492/0210/2436/files/waiting_for_love_quotes_images.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/9737/5388/files/perimeter_composite_shapes_worksheet.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/2064/6048/files/38555811607.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/senior_staff_accountant_job_description.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/91855144101.pdfIn PDF document text
  • https://s3.amazonaws.com/daraniwekamidir/north_east_india_road_map.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_off00007874.bin)

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