Malicious PDF — malware analysis report

Heuristics 8

• 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.
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://cafij.co.za/YmrXLWy8?keyword=academic%20writing%20for%20graduate%20students%20answer%20key%20chapter%206 PDF link annotation

  • https://peninovafaron.weebly.com/uploads/1/3/4/3/134320426/vomupipofapitudisume.pdfIn PDF document text
  • https://rupusuji.weebly.com/uploads/1/3/4/8/134878943/mibasavaxonijixefo.pdfIn PDF document text
  • https://www.yukule.com/ToBeDeleted/admin-assets/js/ckeditor_4.6.2_standard/kcfinder/upload/files/laxot.pdfIn PDF document text
  • https://jimiporumina.weebly.com/uploads/1/3/6/0/136088268/tapijomeganewoma.pdfIn PDF document text
  • https://pesiwuveso.weebly.com/uploads/1/3/5/3/135392822/5d4cec.pdfIn PDF document text
  • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/161f9f92d3d67c---5406973130.pdfIn PDF document text
  • https://812423.situshoki1.com/contents/files/97091398816.pdfIn PDF document text
  • https://dijafujuzu.weebly.com/uploads/1/3/4/3/134369935/4617564.pdfIn PDF document text
  • https://jowoxivodatut.weebly.com/uploads/1/3/4/8/134851862/d5ea2d57ccdc0a.pdfIn PDF document text
  • http://aotem.com/data/home/qxu1780220113/htdocs/uploadfile/files/rupipuluvenimutudebolutid.pdfIn PDF document text
  • https://zuriloteva.weebly.com/uploads/1/3/4/6/134623588/dofikik.pdfIn PDF document text
  • https://rocksoliddesigns.biz/userfiles/file/tepejodamekarezinuse.pdfIn PDF document text
  • http://dinapart.net/frontend/web/kcfinder/upload/files/43693404916.pdfIn PDF document text
  • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/162456260c9e9e---zojiwuwupupovajitizu.pdfIn PDF document text
  • http://gentry.work/updatefiles/file/57845198466.pdfIn PDF document text
  • http://arcstema.com/userfiles/files/jobunajupakadivinavijoziv.pdfIn PDF document text
  • https://atlastoursntravels.com/userfiles/file/zugipetaduj.pdfIn PDF document text
  • https://nobasaxekomu.weebly.com/uploads/1/3/5/3/135322761/veneguxa.pdfIn PDF document text
  • https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/1f47c0be95d74284614c853255becf94/xuxoninexujuzajesi.pdfIn PDF document text
  • https://tusosalowikos.weebly.com/uploads/1/3/1/4/131453146/65e11460d346.pdfIn PDF document text
  • https://zenujuvevepiro.weebly.com/uploads/1/3/4/3/134317368/407457944cc8.pdfIn PDF document text
  • http://microcement.ua/userfiles/file/tekalo.pdfIn PDF document text
  • https://morupataniseb.weebly.com/uploads/1/3/4/5/134502176/4246045.pdfIn PDF document text
  • https://bivunuse.weebly.com/uploads/1/3/5/3/135392281/moripunaw-mopipunu.pdfIn PDF document text
  • https://silexizokizu.weebly.com/uploads/1/4/1/2/141231627/6012159.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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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