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://gettraff.ru/wb?keyword=pdf%20reader%20for%20ubuntu%2019.04 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365553/normal_5f8c5d4429f31.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389821/normal_5f96057f345c9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378171/normal_5f8d43e3d1644.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386828/normal_5f8f43a6bde91.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380392/normal_5f9107a7af6e3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380528/normal_5f91e2d3383e1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4401517/normal_5f9295dc34ace.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4405907/normal_5f91ad1bb6404.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376598/normal_5f89d48f534a8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366020/normal_5f86fa69a3699.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381543/normal_5f937b2da3996.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4407069/normal_5f936acfd2d52.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000077c1.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000077c1.bin)
  • http://www.daltonmaag.com/In extracted file (font_03_sfnt_off0000d01c.bin)
  • https://uploads.strikinglycdn.com/files/f2f87301-c403-4201-bb04-87dd90b6362c/resolution_of_iphone.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b2472185-0b83-41c7-9c54-77d7609f49bb/game_maker_studio_2_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0ab1fa5f-7f73-4c21-8e84-c7be40f96f15/sultan_ldrmek_nzhetin_katili_kim.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5bfb2d1b-0f3d-4863-8073-e9303646dc57/76478951487.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/950e496e-3fd1-4ebc-8e57-8897b5b3c292/cfp_90_pack_manual.pdfIn PDF document text
  • https://s3.amazonaws.com/tapexiw/framed_ink_download.pdfIn PDF document text
  • https://s3.amazonaws.com/gifojuxaxeva/97105614825.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/6794/7673/files/small_spontaneous_groups.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/0546/2696/files/52792614233.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/4152/4382/files/nudatumasogad.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/8887/8012/files/affirmative_and_negative_informal_commands_worksheet_answers.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://dejavu.sourceforge.netIn extracted file (stream_006_off0000ad5b.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_006_off0000ad5b.bin)
  • http://scripts.sil.org/OFLIn extracted file (font_00_sfnt_off000077c1.bin)

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