Malicious PDF — malware analysis report

Heuristics 6

• 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.
• PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
  PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
• 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://ggtraff.ru/strik?keyword=homebrew+warlock+patrons In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365606/normal_5f875c662dfb9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368781/normal_5f879d3f5a4ce.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366020/normal_5f87566ce0850.pdfIn PDF document text
  • https://s3.amazonaws.com/gagagakigibapo/article_35a_in_marathi_download.pdfIn PDF document text
  • https://s3.amazonaws.com/wexoteluwag/67523984847.pdfIn PDF document text
  • https://s3.amazonaws.com/subud/articles_on_quality_education.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375522/normal_5f918f98dc218.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367680/normal_5f87e5de06b76.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368951/normal_5f880bd1839f7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380881/normal_5f90dc2118a01.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00009835.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00009835.bin)
  • https://cdn.shopify.com/s/files/1/0500/4732/0250/files/email_fillable_form.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/5015/1329/files/bluetooth_broadcast_receiver_in_android.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/7250/7044/files/8086_microprocessor_book_for_engineering.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/1916/0736/files/cover_letter_for_research_assistant.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/6310/7480/files/metewagegupasowaji.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/7954/3200/files/nuredotofozibide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/6898/3969/files/98670633164.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/0799/0184/files/22193848730.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/9285/9798/files/mefejupidexezipalefudi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/142f56c5-5b29-4c54-94c6-c28e47098edb/big_daddy_1999_full_movie_free.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fcc6f247-df6c-4553-9248-7bb19333d851/xugugalofimukoxo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2a8eb6a0-ea0a-4e2a-8232-b4b0f4d82066/92975110020.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/519c59ad-d31e-4260-8916-a500bc5a9b8f/2774723572.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c5fc3889-1aea-40b2-885c-a94c56d95250/mavafowuf.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_off00009835.bin)

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