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.
• 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
• 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://zajinet.ru/award?keyword=antrenmanlarla+matematik+3+pdf+2020 PDF link annotation

  • https://static.s123-cdn-static.com/uploads/4471969/normal_5ff329a89ae44.pdfIn PDF document text
  • http://nefozufovi.scienceontheweb.net/caroubier_maroc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4482020/normal_60478a35e73d3.pdfIn PDF document text
  • http://vexoxem.scienceontheweb.net/bibel_tv_programmheft.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4472221/normal_604a2bee42474.pdfIn PDF document text
  • http://wogivodugakovek.mygamesonline.org/facial_expression_pictures.pdfIn PDF document text
  • http://tonukavugu.mygamesonline.org/74351962217.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4499329/normal_6044239606c1f.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://d670dda7-df53-4ef1-8eda-d3256df28744.filesusr.com/ugd/dbbbec_361d4a8df1544726bad4a8a0cee85211.pdf?index=trueIn PDF document text
  • http://duvodix.myartsonline.com/adjective_phrase_quiz.pdfIn PDF document text
  • http://kawerulim.onlinewebshop.net/43979727690.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f6fd934c-4361-4efe-8712-6f0b791841f9/8171898965.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c39cc51f-93b6-4f97-934a-5d6c5132bd8a/does_utah_require_safety_inspections.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8d498cc0-96de-40fc-827f-3daa24476d07/philips_avent_microwave_steriliser_how_much_water.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/298258ac-8164-4f41-81e5-2ae28ae379c8/are_snapper_lawn_mowers_good.pdfIn PDF document text
  • https://bc13a564-db4d-4abe-bba9-081b1c4085ef.filesusr.com/ugd/d5ec75_56a8a566236448d6a234ab67c98e01cc.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/c7e921f3-45c3-4052-bb83-508e85d77780/33337617191.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/082ec4a0-6239-4797-91b1-7ae5302b5468/25403807133.pdfIn PDF document text
  • https://03f57db0-fbcf-46ec-8713-21b5992b8512.filesusr.com/ugd/455f95_25f5956084e045419848d0168597876f.pdf?index=trueIn PDF document text
  • https://f608bf75-187c-4b28-9621-af925c05c2b6.filesusr.com/ugd/05e3ad_85d2a257982d46cdae881bba51074cac.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/6906e97b-ed18-4180-85cd-4457423d993d/hitachi_c10fsh_parts_diagram.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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