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://ttraff.link/pify?keyword=japanese+from+zero+1+pdf+free+download In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367019/normal_5f87586d46e58.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384035/normal_5f8cb57914829.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4412591/normal_5f959e6fc06dd.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369315/normal_5f87c0db4d4f8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365656/normal_5f8d61973ca6e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365580/normal_5f874e30c5e16.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000052f6.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000052f6.bin)
  • https://cdn.shopify.com/s/files/1/0484/2890/8696/files/firefox_proxy_settings_android.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/7891/9351/files/static_and_dynamic_load_examples.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/9390/0455/files/vaulty_app_free_download_for_android.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/0324/7781/files/mufiliwezikabifune.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/3905/8851/files/nivow.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9be059a0-a660-4b34-a867-613dd2a98c17/47115076765.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4d31dc37-83a1-4be8-81d1-0bb807edc111/jojirifelofar.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/250a6036-921e-4b9b-b4f0-353bfba40d3f/rockcrok_grill_recipes.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/6120/6422/files/ulcc_ti_class_supertanker.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/3826/8318/files/texilatibesipivukonowar.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/2092/6107/files/free_download_led_flashlight_for_android.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/8418/4728/files/liruledavowekepexoguwu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/5104/1447/files/magpul_mid_length_handguard_triangle.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9540476d-3b5f-4c11-9fe1-7819f63fdbe2/11514150516.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f22f5492-0a31-493c-993d-4f04c91bea85/9261699238.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5f3a540e-7469-4ad0-be38-93b395fcfb02/kezunowomuroxusidegug.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_off000052f6.bin)

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