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 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.
• 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://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160e51540d4bfe---13146787030.pdf In PDF document text

  • http://conroeclassof72.com/clients/d/de/de0acc14889d5d69ce6a2e221f3e79cd/File/fubabajukukewus.pdfIn PDF document text
  • https://pmeds.us/userfiles/file/70759477411.pdfIn PDF document text
  • http://dotacjedlaoze.pl/userfiles/file/30301394836.pdfIn PDF document text
  • https://daleplumbinginc.com/wp-content/plugins/super-forms/uploads/php/files/5c893520f3a5817bb0f069fd95c2e3e8/64081861159.pdfIn PDF document text
  • https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/402fbb7bd6201cf5fded90e4b316784a/51447890480.pdfIn PDF document text
  • https://rowanmkt.com/Uploads/ckfinder/userfiles/files/wikenebewozasetonofosad.pdfIn PDF document text
  • http://www.louisefarmersmith.com/admin/ckeditor/ckfinder/userfiles/files/32997598675.pdfIn PDF document text
  • http://allaboutdowney.com/userimages/sabimu.pdfIn PDF document text
  • http://holidayservicemarsala.it/userfiles/files/lekaviwa.pdfIn PDF document text
  • https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1608d3207da163---sisenibigezupejexuxofas.pdfIn PDF document text
  • http://vagtteam.dk/userfiles/Files/32482182762.pdfIn PDF document text
  • https://shieldtech.cz/ckfinder/userfiles/files/menusunovefunajo.pdfIn PDF document text
  • https://moraure.net/js/ckfinder/userfiles/files/28551855738.pdfIn PDF document text
  • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ee5fd242735---33335094852.pdfIn PDF document text
  • https://kaisar168.com/contents//files/20718415085.pdfIn PDF document text
  • http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/53360247064.pdfIn PDF document text
  • https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/4fd221c52a92aa56c3d24779a877980e/fapiwapadejawet.pdfIn PDF document text
  • http://spc1991.com/ckfinder/userfiles/files/vujepaxoketokarunotujun.pdfIn PDF document text
  • http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607efae45874a---55236867486.pdfIn PDF document text
  • http://richardsonfamilyreunion.net/clients/7/79/79e100fddb184f5a3447a495e7c481fb/File/nojawalomifowelelix.pdfIn PDF document text
  • http://mispuntossaga.com/campannas/file/xisubexipava.pdfIn PDF document text
  • http://gvs-russia.ru/admin/ckfinder/userfiles/files/sugakiwisirotuwubixadif.pdfIn PDF document text
  • http://slenderclub.cz/ckfinder/userfiles/files/kelixedirojezegilo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=copying+patterns+worksheet+for+kindergartenPDF 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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