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=osmotic+pressure+worksheet In PDF document text

  • https://cdn-cms.f-static.net/uploads/4368245/normal_5f8e7064bc312.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4413462/normal_5f9a362e8efa1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365655/normal_5f870428956cb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369765/normal_5f8ce6d1e9875.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367289/normal_5f8d029def049.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369493/normal_5f92ef1bc5c39.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366010/normal_5f8a7e34bc17c.pdfIn PDF document text
  • https://welavofewefose.weebly.com/uploads/1/3/0/8/130813025/fowafibetu-mewubok-nonokalegunug-nosili.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365655/normal_5f871e7bed5c3.pdfIn PDF document text
  • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/vepulakanug.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383451/normal_5f9982d76b414.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00008d61.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00008d61.bin)
  • http://www.daltonmaag.com/In extracted file (font_03_sfnt_off0000d982.bin)
  • https://s3.amazonaws.com/piwanisaj/pentobarbital_order_online.pdfIn PDF document text
  • https://s3.amazonaws.com/tipikaxe/canara_bank_ppf_account_opening_form.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/4186/5384/files/fnaf_sister_location_full_game_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/5826/8833/files/53403452727.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/8935/4142/files/custom_toast_in_xamarin_android.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/8052/7258/files/gta_5_apk_download_for_pc.pdfIn PDF document text
  • https://s3.amazonaws.com/rerinago/93163484993.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/4060/2269/files/isle_of_tune_desktop.pdfIn PDF document text
  • https://s3.amazonaws.com/jebokizez/edgestar_washer_dryer_combo.pdfIn PDF document text
  • https://s3.amazonaws.com/kavitokolezub/4989967714.pdfIn PDF document text
  • https://s3.amazonaws.com/moxekibupuru/ramurokikikoxomorutapun.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_off00008d61.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off0000c4b8.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off0000c4b8.bin)

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