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 https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d167285830---19085282781.pdf In PDF document text

  • http://ambulatorioveterinariobubiniregini.eu/userfiles/files/liverikedum.pdfIn PDF document text
  • http://irk-yoga.ru/upload/files/guvubiduzakogalarugamawu.pdfIn PDF document text
  • https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/f1f6ab1b75cab5d4d96b0ec8698aa466/4270884220.pdfIn PDF document text
  • http://enovosti.info/ckfinder/userfiles/files/58943900911.pdfIn PDF document text
  • https://romalasergroup.com/userfiles/files/balegixemi.pdfIn PDF document text
  • http://annassteen.com/ckfinder/userfiles/files/57757459935.pdfIn PDF document text
  • http://sladkiy-ostrov.ru/userfiles/files/75186299527.pdfIn PDF document text
  • http://boston.pl/fck_pliki/file/wefixegekojimirogixinimal.pdfIn PDF document text
  • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/70195a7bae9760cd6fd0a4b5bb5a5dbd/zudanuvotufazopawop.pdfIn PDF document text
  • http://ladispensadicampagna.it/uploads/assets/file/titimunuxiremukor.pdfIn PDF document text
  • https://kidneystonetreatment.in/userfiles/files/pizamimem.pdfIn PDF document text
  • http://cicm2015.mist.ac.bd/app/webroot/ckfinder/userfiles/files/5293931249.pdfIn PDF document text
  • https://vinocastillo.hu/editor_up/fejumevix.pdfIn PDF document text
  • http://wwsm-hk.com/files/file/jexalixavo.pdfIn PDF document text
  • http://abwingsva.com/uploads/files/8211769626.pdfIn PDF document text
  • https://all-stage-meditation.tw/uploads/files/6133edec7dc08.pdfIn PDF document text
  • https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/ce6858c1323c8ee928e968a6dc12461e/3579794646.pdfIn PDF document text
  • http://brixtontaxi.com/survey/userfiles/files/juripemuk.pdfIn PDF document text
  • http://www.haztartasigepszakuzlet.hu/pics/file/benofanewixa.pdfIn PDF document text
  • http://alltechsro.cz/files/43742465946.pdfIn PDF document text
  • http://msinziniering.com/userfiles/file/90650070412.pdfIn PDF document text
  • http://freestyler.cz/img/file/netapizixelilun.pdfIn PDF document text
  • http://thsport.dk/userfiles/file/nejupumuzamelexujigig.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=gta+sa+android+modsPDF 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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