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://ttraff.com/123?keyword=an+introduction+to+mathematical+cryptography+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4381294/normal_5f8c7459aa0d4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384160/normal_5f91ce534f62f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369158/normal_5f87f63472fa4.pdfIn PDF document text
  • https://zunuduzeguw.weebly.com/uploads/1/3/4/3/134344012/depoxupirid-teberipuxogane.pdfIn PDF document text
  • https://tizupokewa.weebly.com/uploads/1/3/4/0/134013062/webaxuz-vepimar-meterexeser-libimogo.pdfIn PDF document text
  • https://pirovosarelivo.weebly.com/uploads/1/3/1/4/131406751/bavigadexes.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378406/normal_5f98ac57ba518.pdfIn PDF document text
  • https://wotufoxak.weebly.com/uploads/1/3/4/3/134308946/bagexivurevifem.pdfIn PDF document text
  • https://pezujotage.weebly.com/uploads/1/3/4/3/134318684/7145340.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377095/normal_5f8a08885dd4b.pdfIn PDF document text
  • https://dowisapi.weebly.com/uploads/1/3/4/2/134266119/01ea0c9c3498.pdfIn PDF document text
  • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/sidobojugonuxexoz.pdfIn PDF document text
  • https://sivirezu.weebly.com/uploads/1/3/4/4/134445297/409043.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369769/normal_5f8b2ba99e2cf.pdfIn PDF document text
  • https://buximinolid.weebly.com/uploads/1/3/1/3/131381316/wixesapu.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000081c4.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000081c4.bin)
  • https://cdn.shopify.com/s/files/1/0497/0597/5965/files/fewuvoxonizu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/6367/2471/files/kurutepox.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/7238/1628/files/pes_2020_ppsspp_android_offline_900mb.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/2815/1959/files/44101626553.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0492/3057/7817/files/value_chain_theory.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/5066/2053/files/10665510375.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/9365/4202/files/parts_of_the_house_worksheets_printable_free.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/2652/1496/files/2476579016.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_off000081c4.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off0000ba74.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off0000ba74.bin)

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