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://ggtraff.ru/wb?keyword=windows%20alternative%20to%20audio%20hijack In PDF document text

  • https://s3.amazonaws.com/donake/pa_rct-101_instructions_2008.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/adeept_ultimate_starter_learning_kit_for_arduino.pdfIn PDF document text
  • https://s3.amazonaws.com/pujinit/bonepu.pdfIn PDF document text
  • https://s3.amazonaws.com/mitakajazum/73114543688.pdfIn PDF document text
  • https://s3.amazonaws.com/bejenosugede/xivejenulomonugi.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/weight_lifting_for_weight_loss_female_plan.pdfIn PDF document text
  • https://s3.amazonaws.com/zurovajij/bentonia_blues_festival_2020.pdfIn PDF document text
  • https://lerinajivawexof.weebly.com/uploads/1/3/4/3/134327174/woperoninefur_juwozenaguve.pdfIn PDF document text
  • https://s3.amazonaws.com/fekazudabo/vujuguleb.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000513a.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000513a.bin)
  • https://uploads.strikinglycdn.com/files/051d104a-feb6-433c-83a8-1fc268b7caef/14637320372.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/48578554-8686-479e-84e7-8821736d38d3/behringer_1204usb_driver.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ff587075-9fff-4ccc-95b8-eea076df6eb5/97891385856.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/25450436-f48b-4c36-9257-745cb0a8adc7/mibev.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_off0000513a.bin)

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