Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://busuguzokiw.weebly.com/uploads/1/3/1/4/131406797/7218913.pdf.
• 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.
• 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://kuzutuzo.ru/strik?utm_term=special+theory+of+relativity+easy+definition PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4529977/normal_60128e1b2ac5d.pdfIn PDF document text
  • http://particuliers-societegenerale.xyz/carbatec_mini_lathe_manualla23d.pdfIn PDF document text
  • http://zegererevez.medianewsonline.com/44957766351.pdfIn PDF document text
  • https://busuguzokiw.weebly.com/uploads/1/3/1/4/131406797/7218913.pdfIn PDF document text
  • https://vudiwajexisipu.weebly.com/uploads/1/3/4/0/134096418/5590121.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387703/normal_605a0bb8e6a35.pdfIn PDF document text
  • http://creditscoretrack.info/fisiopatologia_de_cetoacidosis_diabetica_2017af80k.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4451555/normal_5fdebcda7effa.pdfIn PDF document text
  • https://mumetimobenuja.weebly.com/uploads/1/3/2/3/132302956/82b30be6.pdfIn PDF document text
  • http://wojurimaxab.mywebcommunity.org/ged_practice_test_questions_and_answers.pdfIn PDF document text
  • https://jaxefosizi.weebly.com/uploads/1/3/6/0/136083017/mimenifenusan.pdfIn PDF document text
  • http://profapp.pro/xujeziwisulakopafq9k.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374986/normal_5fd85c0de72bd.pdfIn PDF document text
  • http://sell-toclick.online/abbyy_lingvo_apk_cracked0yfe7.pdfIn PDF document text
  • http://rekijiwowak.scienceontheweb.net/56551883105.pdfIn PDF document text
  • https://newogevalofa.weebly.com/uploads/1/3/4/8/134898908/3188427.pdfIn PDF document text
  • https://piwaxokireruber.weebly.com/uploads/1/3/0/9/130969414/958c1462d60.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://63995da9-74be-4895-8497-a4fa53c9845d.filesusr.com/ugd/788c84_d5cb345bbde94d0d8ac1fea9792bf1f6.pdf?index=trueIn PDF document text
  • https://d90bda3b-35dd-409f-9d4b-b4a00d881a52.filesusr.com/ugd/b88e3d_1dcb4e0631cf4c129bafdcd28abb3525.pdf?index=trueIn PDF document text
  • https://6c49ff76-e13b-46da-8354-2e633d56f736.filesusr.com/ugd/211c2d_524e50fc63ba49c5a54030a49c2bb72e.pdf?index=trueIn 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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