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.
• 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://kidunaxu.weebly.com/uploads/1/3/1/4/131437100/41670b4d7.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.
• 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/strik?keyword=the+payroll+source+2014+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367644/normal_5f89250aede45.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369771/normal_5f898be7098d1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366958/normal_5f87c3b38b302.pdfIn PDF document text
  • https://kidunaxu.weebly.com/uploads/1/3/1/4/131437100/41670b4d7.pdfIn PDF document text
  • https://femevidawivuk.weebly.com/uploads/1/3/1/0/131071063/wupalubedasime-sixosazama-dufaximag-xirenokigamodid.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365560/normal_5f8702bb44b0a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366346/normal_5f87580cd518a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367303/normal_5f88dc06b8437.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372384/normal_5f8a0c2a216ec.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367308/normal_5f87ce6c009a4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366389/normal_5f87183d05ad4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368244/normal_5f88b4b1e099d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369781/normal_5f87eecf502c7.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/085dc550-2f93-4206-947a-67cc0d697df5/61433439589.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2471d373-c336-400a-b29b-4f75dc040934/pamexexelosuririlive.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d2215bb7-cbfa-4ce5-bb0b-d3dcf114e28a/lovobenusamamurowe.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0488/2065/0149/files/tu_chon_luyen_hinh.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/7867/6380/files/self-employed_income_statement-form_b.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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