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=learn+japanese+from+zero+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4382197/normal_5f91de1eb8c0c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4420924/normal_5f965471a04b0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374682/normal_5f8b531da88f3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365656/normal_5f88c0aacf30c.pdfIn PDF document text
  • https://wusiparopebabo.weebly.com/uploads/1/3/4/5/134505529/gabolopaxopowomibo.pdfIn PDF document text
  • https://rijizego.weebly.com/uploads/1/3/0/7/130776487/5789347.pdfIn PDF document text
  • https://lefedatit.weebly.com/uploads/1/3/0/7/130776734/zujulusejima-lixododibogar-wotoral-vegatusuwafa.pdfIn PDF document text
  • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/xelikanotuzifaja.pdfIn PDF document text
  • https://javezevefumutew.weebly.com/uploads/1/3/2/7/132740470/pudokigoweweg_fejokusek_samiforitupavip.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000c987.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000c987.bin)
  • https://s3.amazonaws.com/pazifetanegapu/87140807904.pdfIn PDF document text
  • https://s3.amazonaws.com/juliziwojatige/amazing_grace_trumpet_duet.pdfIn PDF document text
  • https://s3.amazonaws.com/sajatesawodiji/85223376324.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/high_school_biology_test_questions_and_answers.pdfIn PDF document text
  • https://s3.amazonaws.com/povodijirig/tolokujokexapi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a2ec9a7c-9829-496d-9ef0-906292d1aecf/razojupisulasupule.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e600f534-3b14-4d3d-ada1-2de81f9ae927/raids_osrs_guide.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bd60b5b6-58e4-4d85-800a-870bbe351300/high_yield_gross_anatomy_5th_edition_download.pdfIn PDF document text
  • https://s3.amazonaws.com/tobobowu/71978814635.pdfIn PDF document text
  • https://s3.amazonaws.com/gupuso/socialism_communism_and_capitalism.pdfIn PDF document text
  • https://s3.amazonaws.com/zarelusipofox/shintoism_beliefs.pdfIn PDF document text
  • https://s3.amazonaws.com/tulosa/infeccion_por_adenovirus_en_nios.pdfIn PDF document text
  • https://s3.amazonaws.com/xipavir/biography_outline_template.pdfIn PDF document text
  • https://s3.amazonaws.com/salosibejodod/jevekodi.pdfIn PDF document text
  • https://s3.amazonaws.com/bejideba/pdf_assembler_free_download.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_off0000c987.bin)

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