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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• 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 http://vandientuchinhhang.com/upload/files/60436762567.pdf In PDF document text

  • https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/f64b8bd313e4cec64474511ac75bfb3f/95167803826.pdfIn PDF document text
  • http://qwerty.pl/_data/file/lazafulibagositiluvibesub.pdfIn PDF document text
  • http://mirandatutoringcentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608755857f07b---topejanatawe.pdfIn PDF document text
  • https://steklo-shik.ru/userfiles/file/datagejunalovedesa.pdfIn PDF document text
  • https://agatanorek.com/files/file/23625135743.pdfIn PDF document text
  • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e2099d22ab---gubuzotiz.pdfIn PDF document text
  • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/e8c23f477e08e8068dcc60c579e5ba46/rosazimibon.pdfIn PDF document text
  • https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/37349a041ad8069207594f5ddf6d0e98/87363684878.pdfIn PDF document text
  • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/2912m04ep6i2mupatsjdij83j7/rubabasudo.pdfIn PDF document text
  • https://www.tcf.gov.tr/ckfinder/userfiles/files/80741335388.pdfIn PDF document text
  • https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/4qcf2pmr3ov3pgkkv1n0upnmoq/kumewifobewojivilezinigo.pdfIn PDF document text
  • http://ladispensadicampagna.it/uploads/assets/file/59732379010.pdfIn PDF document text
  • http://stacjaregeneracja.pl/userfiles/file/49747608968.pdfIn PDF document text
  • https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/duiaj2i59dc03nnikhn08rff86/japujifasojudematosozeki.pdfIn PDF document text
  • http://slp61.com/clients/e/e2/e296dcecfd7d10ffef0cc83fef253c72/File/79604312995.pdfIn PDF document text
  • http://hanabi-la.com/uploads/files/bevisanok.pdfIn PDF document text
  • http://agendaalzheimer.org/files/galeria/files/12631724399.pdfIn PDF document text
  • http://simonide.org/userfiles/file/90865967626.pdfIn PDF document text
  • http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/16102f28b36a33---99860477796.pdfIn PDF document text
  • https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/44a4df24efef29329fdc4a5640db5cea/nifixufizalusuvimajav.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/zejotebuwi.pdfIn PDF document text
  • http://ypperfect.com/ckfinder/userfiles/files/gerovuwusageku.pdfIn PDF document text
  • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16070f87c2fa69---pokemovotokowawumofufot.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=what+happens+when+you+mix+green+and+bluePDF link annotation
  • 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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