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
• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://pistant.ru/uplcv?utm_term=how+to+know+the+password+of+wifi+you+re+connected+android PDF link annotation

  • http://okna-kurska.ru/page_edit/_samples/userfiles/files/24447682783.pdfIn PDF document text
  • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142019ec059e---8076501407.pdfIn PDF document text
  • http://konberdbio.com/upload/files/zibutojikevow.pdfIn PDF document text
  • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/ae580cc40f165dbbc49677d376a2122e/54665841008.pdfIn PDF document text
  • http://anchor-m.com/js/upload/files/27286598267.pdfIn PDF document text
  • http://pitin-akutsu.com/js/upload/files/47989102528.pdfIn PDF document text
  • http://schodylux.pl/userfiles/file/toruxefutobefapasiwepaza.pdfIn PDF document text
  • http://liceoadultos.juniorcollege.cl/userfiles/files/naxumajexaboxanipogexidin.pdfIn PDF document text
  • http://cosmikkino.ru/sadm_files/jagesojajemezeramufaxi.pdfIn PDF document text
  • http://ccforum.kr/uploads/file/1630889818.pdfIn PDF document text
  • http://www.santabriganti.org/admin/ckfinder/userfiles/files/64262551617.pdfIn PDF document text
  • http://przedszkolenisko.pl/userfiles/file/4902950837.pdfIn PDF document text
  • https://artistprasanna.com/userfiles/file/dawakovefigefusoxi.pdfIn PDF document text
  • https://fiscalonline.eu/app/webroot/files/userfiles/files/lewomawe.pdfIn PDF document text
  • https://weboonline.com/ckfinder/userfiles/files/54668335605.pdfIn PDF document text
  • https://aqua2go.pl/galeria/file/walaworu.pdfIn PDF document text
  • https://aneri12.eu/res/file/saxosupifufodebamewil.pdfIn PDF document text
  • https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/54f791d965dc65e79dcee1dd32f77b5c/jigolipupamebafu.pdfIn PDF document text
  • http://netart.hu/userfiles/file/53835310054.pdfIn PDF document text
  • https://groupekineconcept.com/userfiles/file/jedewazefibafitidudiva.pdfIn PDF document text
  • https://majubesar.net/contents/files/23946770498.pdfIn PDF document text
  • https://hogozaty.com/ckfinder/userfiles/files/zematepijunadedikogejut.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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