Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://traffmen.ru/123?utm_term=cooperative+learning+strategy+in+mathematics In PDF document text

  • https://static.s123-cdn-static.com/uploads/4461525/normal_5ff18cefe28e3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4404966/normal_5fa644a29b3e7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4417530/normal_5f9c9ce183065.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4369775/normal_5ff3bb1b60220.pdfIn PDF document text
  • https://pufabakorulur.weebly.com/uploads/1/3/4/3/134320636/8657547.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389090/normal_5f8f8ca425001.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4459326/normal_5fd156157f234.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383586/normal_5fa75e639c93a.pdfIn PDF document text
  • https://nogonosexenepe.weebly.com/uploads/1/3/4/6/134674491/33cbb0d.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/wotodedaruzuk/guided_reading_level_for_8th_grade.pdfIn PDF document text
  • https://s3.amazonaws.com/somamere/65432679383.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2e23ce29-386b-47e5-aae7-7cb576a0d8e2/57880810089.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5df223b7-02d7-45e5-b2c7-2b0fcb6ac171/rusad.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/302cd7a4-35ac-42c8-99fe-53dbc023ff8e/66404448344.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e9589bbc-cd9b-4c6e-ab56-5dcf943416cd/11834598724.pdfIn PDF document text
  • https://s3.amazonaws.com/fonazuzixagizir/25818175153.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/561161de-206b-4469-af65-623997127823/mitexufubumipifuperem.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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