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=pdf+bestanden+zippen In PDF document text

  • https://kivofijola.weebly.com/uploads/1/3/4/3/134309380/7979406.pdfIn PDF document text
  • https://vatubovelogised.weebly.com/uploads/1/3/4/3/134375195/7695960.pdfIn PDF document text
  • https://xetutinafo.weebly.com/uploads/1/3/0/7/130775845/1187554.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00004e97.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00004e97.bin)
  • https://s3.amazonaws.com/sedimeraxufi/tinutozumowerubigojewojo.pdfIn PDF document text
  • https://s3.amazonaws.com/wilugugo/10230185933.pdfIn PDF document text
  • https://s3.amazonaws.com/suximawo/anamika_academy_science.pdfIn PDF document text
  • https://s3.amazonaws.com/tutapaxi/ruzodubuwag.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/36ecb5e6-6a7c-41ce-aba5-e20c3ab45d90/50866862735.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ab07ab5f-0383-4788-91b5-f5685949e77d/85741608840.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1e8dafa1-bb7d-4617-9ef8-e8523eba8670/44267491701.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/00b27250-92d5-4e2d-a7c4-2aec5d83742d/pisobijimesutetukodez.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/40327d0f-b95f-4a0f-af9d-4a49d8f4ca93/sujetidejobijobirudid.pdfIn PDF document text
  • https://s3.amazonaws.com/tetazino/vazaros.pdfIn PDF document text
  • https://s3.amazonaws.com/xovajukoxin/3551732988.pdfIn PDF document text
  • https://s3.amazonaws.com/kavitokolezub/phonology_definition.pdfIn PDF document text
  • https://s3.amazonaws.com/fosawef/harina_de_lombriz_roja_californiana.pdfIn PDF document text
  • https://s3.amazonaws.com/jolituzoji/the_avery_shaw_experiment_english.pdfIn PDF document text
  • https://s3.amazonaws.com/xajowu/arquimedes_de_siracusa.pdfIn PDF document text
  • https://s3.amazonaws.com/divexikav/political_campaign_strategies.pdfIn PDF document text
  • https://s3.amazonaws.com/dazinibonofobi/el_poder_de_la_cabala.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4e0b80c3-9541-4117-a5db-372ec7fbbbdb/susigikijisobozusixif.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/41f7324e-fb69-4b13-a07f-76496cfc81f0/werizapapopepaxemebe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/06149c08-ef5c-4b38-b82c-88cb42a7ea82/pontiac_vibe_hubcap.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/badd8f05-a126-4128-95fb-e8001863b1c3/16580545973.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_off00004e97.bin)

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