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://gettraff.ru/123?keyword=wbcs+main+2020+question+paper+pdf In PDF document text

  • https://noxepelobisuse.weebly.com/uploads/1/3/1/8/131871648/nemulexix.pdfIn PDF document text
  • https://raxiruzaxulam.weebly.com/uploads/1/3/0/7/130738564/f67df7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366371/normal_5f875269de70e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369166/normal_5f891384e16d0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378160/normal_5f8a122ed8fb0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365639/normal_5f871014df02d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365638/normal_5f8762550e745.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365549/normal_5f8909a177c1f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370051/normal_5f89cbad4a007.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366337/normal_5f8728b7a8b8e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369150/normal_5f8a0c7c364cc.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/fafb9c3d-d161-4424-b76c-d70e9e9739f8/93825383991.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/39e8200d-c1d7-45a7-9f39-7898f57046f1/78653584831.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/61cc3218-255f-4434-9ce0-868a742a7533/77246297384.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/779e76ad-320d-4b6b-a25c-2c60bf76b4e4/84438827378.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d9e49508-502e-4453-a0d5-b9f8552dbed5/71256602640.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e3c271aa-4631-4c37-8b16-fb7125200849/2819783962.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cdfd813a-87f5-42e1-816a-4e388da1dcdf/39980903588.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/493ff83f-e93d-44a6-aa71-ef75013914ff/tozulabaru.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c9ca3544-ce12-4dd1-8d1e-1092cbb37ad7/kolowovupinugevipuwaguz.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/7957/4717/files/aspen_guidelines_for_refeeding_syndrome.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/3368/5927/files/words_start_pi.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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