Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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://dafemum.ru/award?keyword=visual+basic+programmer%2527s+guide+to+serial+communications+4+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4529281/normal_600d5a11d0d9e.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4485943/normal_6009901919109.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4390057/normal_5fe277583d160.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4501361/normal_5fd76e3ca26a1.pdfIn PDF document text
  • http://silvanozito.online/viagem_astrals8ucn.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4463533/normal_60401461b321c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4446790/normal_603093c2c3d42.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369310/normal_5fd77ab55011b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374013/normal_5fd39ab3e3bd4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4426425/normal_602e554259fe5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393908/normal_5fd2ce5db2202.pdfIn PDF document text
  • http://bonus332.site/directv_remote_control_codes_for_samsung_tvg7uox.pdfIn PDF document text
  • http://filfex.ru/samsung_mu7000_specsarx7b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4447265/normal_600b1aab74e83.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://7a512b58-7189-4bc4-8343-f643fa9054c9.filesusr.com/ugd/1e52da_873021d95a1c4b46827f3664fc5a8b78.pdf?index=trueIn PDF document text
  • https://d62ff7d9-aefc-4ab8-8cdf-af38868aea16.filesusr.com/ugd/54b9a1_492dd2b912fc4eb5a831ae16b7b708dc.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/b1b7921e-4c4e-462a-b917-7a905d7ab788/82190145258.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/08bc7258-327f-4621-be6e-3bad86069f6d/10067759862.pdfIn PDF document text
  • https://0ccb9a81-bd3c-41bd-bc79-2352350f0e5e.filesusr.com/ugd/95ea6b_09d225a6def4450b8094e2ad43e0d2cc.pdf?index=trueIn PDF document text
  • https://e29a9437-b0a5-48a6-9afa-908397ce514a.filesusr.com/ugd/16a9c1_a56f22007d0b4cde9004f68ffc8c3279.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/7c6358dd-f8af-4d74-84bd-cd878815f8fb/zovufetituv.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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