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
• 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://laborke.ru/uplcv?utm_term=android+testing+junit PDF link annotation

  • http://www.satit.nrru.ac.th/satit/_Adminis/ckfinder/userfiles/files/37116761740.pdfIn PDF document text
  • http://hermanosgolbano.com/admin/fckeditor/editor/filemanager/connectors/phpfile/16558346148.pdfIn PDF document text
  • https://lomasdelaweb.com/userfiles/2008.09/file/fudup.pdfIn PDF document text
  • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1613d13cc55aa5---30884554822.pdfIn PDF document text
  • https://isagrinio.gr/userfiles/67092873189.pdfIn PDF document text
  • https://shian-jin.com/UserFiles/files/12445681937.pdfIn PDF document text
  • http://nagakuratrading.com/js/upload/files/64141823175.pdfIn PDF document text
  • https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/7ccmchk9i5vfu0tro5mnolkqc2/pamesikopigejupusi.pdfIn PDF document text
  • http://taikenplan.jp/ckfinder/userfiles/files/sisilu.pdfIn PDF document text
  • http://xn--h1agcmh.com/ckfinder/userfiles/files/28900975976.pdfIn PDF document text
  • http://daindnc.com/fckeditor/userfiles/file/49458442210.pdfIn PDF document text
  • http://buyyoutubecomments.com/ci/userfiles/files/josedufugik.pdfIn PDF document text
  • http://munnartourism.com/uploads/file/34239187201.pdfIn PDF document text
  • https://lifo-sea.com/ckfinder/userfiles/files/nugesubago.pdfIn PDF document text
  • https://www.jdconstinc.com/ckfinder/userfiles/files/2920762045.pdfIn PDF document text
  • http://sdds.be/userfiles/file/wubusedudakij.pdfIn PDF document text
  • http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161410d95a2f96---solozuvaroxefigitazezebag.pdfIn PDF document text
  • https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/6c508ca2cc63d4f3feb49dc21e5a5cae/bigudogixug.pdfIn PDF document text
  • https://mayxaydungthienlong.com/uploads/files/files/36025498942.pdfIn PDF document text
  • https://www.fibertech1.com/my_content/js/ckfinder/userfiles/files/vuforojulawe.pdfIn PDF document text
  • http://xn--80aer5aza.xn--19-kmcm3c.xn--p1ai/ckfinder/userfiles/files/foderugavagugegek.pdfIn PDF document text
  • http://abbuffalowings.com/uploads/files/gowusezosuzubizowamek.pdfIn PDF document text
  • http://birons.net/wp-content/plugins/super-forms/uploads/php/files/3b5303b4d096f75bea93a302702d3124/43330432337.pdfIn PDF document text
  • http://rabotatver.ru/userfiles/admin/vawevibulevepolegobip.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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