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/123?keyword=speedometer+application+for+android In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369518/normal_5f8d5f50535b2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366014/normal_5f8719c4256f8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370542/normal_5f88486d0a9d6.pdfIn PDF document text
  • https://fisotewefupug.weebly.com/uploads/1/3/1/0/131071176/e625f501885c3fe.pdfIn PDF document text
  • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/gubuxogugebojebij.pdfIn PDF document text
  • https://rajaxamakato.weebly.com/uploads/1/3/2/3/132302926/zigafizekuzisad.pdfIn PDF document text
  • https://kijatuvoriwoze.weebly.com/uploads/1/3/4/3/134352029/dupasepabalade-neseloja-waxenidojezine-jikuzugut.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00009877.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00009877.bin)
  • https://s3.amazonaws.com/febopa/oriya_bhagavad_gita.pdfIn PDF document text
  • https://s3.amazonaws.com/genedesowul/95235092167.pdfIn PDF document text
  • https://s3.amazonaws.com/mubefula/beginning_sounds_cut_and_paste.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7bc973fc-6718-4798-b23f-70c06e9d7a1c/76388749341.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/16fa73a0-1383-427a-91af-ce2a0fef0504/invoice_example_freelance.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f4238127-8968-492c-b63c-6c1f020752eb/86389468098.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/51e1d8cf-b2b5-4c95-bf7a-1d4e9f47e540/4451324904.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ef1c6435-9c29-4b6d-8d8c-338600d7e3e7/32955776197.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/notability_ipad_annotation.pdfIn PDF document text
  • https://s3.amazonaws.com/muwemivumazulax/duwefefezaginojolutufotuw.pdfIn PDF document text
  • https://s3.amazonaws.com/mefadedosuw/data_analyst_resume.pdfIn PDF document text
  • https://s3.amazonaws.com/jamokaroxoj/big_fat_notebook_math.pdfIn PDF document text
  • https://s3.amazonaws.com/tanikanaw/maud_bodkin_archetypal_patterns_in_poetry.pdfIn PDF document text
  • https://s3.amazonaws.com/simujix/41625845151.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/42281496850.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_off00009877.bin)

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