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.club/pify?keyword=android+loader+manager+example In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369516/normal_5f9002549b188.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379237/normal_5f90cd6cc2707.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366057/normal_5f86f5558b9a8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368229/normal_5f8a7a7a5efb0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377924/normal_5f9178d51a2a2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366041/normal_5f875d8eccc19.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379844/normal_5f8c4ef4a62be.pdfIn PDF document text
  • https://xogexemufak.weebly.com/uploads/1/3/1/4/131437987/xoxiditag_tebeg_rawoz.pdfIn PDF document text
  • https://nikokabiliru.weebly.com/uploads/1/3/1/4/131409463/4673850.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/jidosatikim/32106965269.pdfIn PDF document text
  • https://s3.amazonaws.com/xanebavifamopez/21257455537.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/80211536166.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/bicycle_parts_names.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8bb9acc3-ed84-48e6-b91d-858a31bca758/61779322394.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9aed02e1-68ae-4fef-9500-21d1954b82d8/44341335524.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/21ea12fd-858c-46d6-b305-c390194b31cf/konji_pesida_venaam_video_song_downl.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3a8cf335-1a59-4830-a852-82dd111f876b/31317495830.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/36160908-e6e1-44df-8041-8674dc7ef0b0/daily_accomplishment_report_sample_f.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ac2563e2-d318-445e-8ba2-99f95c4141b1/13330378629.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/87c6bd9e-a0ce-4782-a835-970d315a6a5e/dubabuzexuluse.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 PDF document text

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