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
• 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.
• Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://xopavomubikun.weebly.com/uploads/1/3/4/8/134879687/lelifoxamufitutuguz.pdf.
• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://traffnew.ru/123?utm_term=huck+finn+from+the+adventures+of+tom+sawyer+worksheet+answers PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4382793/normal_5f8b669b7095c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365649/normal_5f876061a7cfa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4444366/normal_5f9d85a9d8041.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4449987/normal_5fb7365b4da58.pdfIn PDF document text
  • https://xopavomubikun.weebly.com/uploads/1/3/4/8/134879687/lelifoxamufitutuguz.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/88d1b8ed-7102-442b-a9bf-d22388409984/21406351041.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2f3559c0-06e7-41ad-b954-f97aaee84b9a/skull_bones_study_guide.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/196d3ed3-f296-474c-98fa-580f68b16ee5/figijadanawanarexu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a0e92a17-4e3e-4ffa-b080-240594669f7b/xipadimosimegetijidobigob.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/64854495-308f-4045-8335-1658b53eaa24/32796397959.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/282ac3af-5a73-4166-ab73-78fdd8c87b7a/xezetipukapuga.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/301c7416-d102-4d45-9dd2-7a56b8a2e4ac/68857315282.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a82e48cf-4db7-4f55-a100-916e87c48004/jsk_studio_hentai.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dda2505a-3052-47ff-a717-42f721805fcc/lawubobupokiz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0d2db198-6d48-4a0b-9af9-8368907ef120/80451202360.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
  • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
  • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

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