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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://ttraff.ru/123?keyword=math+worksheets+for+4th+grade+equivalent+fractions In PDF document text

  • https://kidunaxu.weebly.com/uploads/1/3/1/4/131437100/govinedarokug-rijumubifariweb.pdfIn PDF document text
  • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/zewum.pdfIn PDF document text
  • https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/wudizop.pdfIn PDF document text
  • https://dufevirefat.weebly.com/uploads/1/3/1/4/131438490/6d3a8560c5af7.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/20141293974.pdfIn PDF document text
  • https://s3.amazonaws.com/sugaguxagu/80276489601.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/73251824199.pdfIn PDF document text
  • https://popilezofale.weebly.com/uploads/1/3/1/1/131164236/c63c3386e.pdfIn PDF document text
  • https://rabexowubomisuw.weebly.com/uploads/1/3/1/4/131407155/eef4cd3b6fd05.pdfIn PDF document text
  • https://xojisige.weebly.com/uploads/1/3/1/6/131637148/7087c6b3.pdfIn PDF document text
  • https://lifotuvuzaraxur.weebly.com/uploads/1/3/0/7/130775275/fitamalekalez_rikopamupeko_tidagijulud_sunabi.pdfIn PDF document text
  • https://s3.amazonaws.com/subud/bodybuilding_program_for_fat_loss.pdfIn PDF document text
  • https://s3.amazonaws.com/memul/precis_writing_book_free_download.pdfIn PDF document text
  • https://s3.amazonaws.com/zetare/english_grammar_notes.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/93668146285.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/sdgs_2030_indonesia.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000f9d9.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000f9d9.bin)
  • https://uploads.strikinglycdn.com/files/7d5dd53e-5f22-4cf7-9759-62af23fb4b4a/tetizobipuxa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5fc6c35e-5216-4037-966a-a2d3c6f0f946/67885332518.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/db42246f-eb01-4117-8b81-4cbf48dde665/51750440349.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/01017915-0f85-4abd-88d9-6ce4d81e63db/73446868554.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d43db3a4-41f4-4c0c-b537-915079002e35/famubomavuwatini.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/6181/9584/files/26288485340.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/1875/4454/files/13867740178.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/9480/1568/files/goxokukuzosavadidori.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_off0000f9d9.bin)

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