Malicious PDF — malware analysis report

Heuristics 9

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://multi-accueil.fr/ressource/site-image/files/55307227539.pdf In PDF document text

  • http://www.synagoge-stommeln.de/ckfinder/userfiles/files/30797189712.pdfIn PDF document text
  • https://gamepinleri.net/calisma2/files/uploads/luvimuwusabuketewevovines.pdfIn PDF document text
  • http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/9c663932cdeb021f8598919e8edd1237/gapozobivosusimukisolam.pdfIn PDF document text
  • http://pieseclimaauto.com/files/file/nilusokuxufo.pdfIn PDF document text
  • http://saraiaser.nl/userfiles/file/73489445043.pdfIn PDF document text
  • https://www.rapn.ru/ckfinder/userfiles/files/wogofox.pdfIn PDF document text
  • http://mrhobbscoffee.com/images/uploads/file/93185998022.pdfIn PDF document text
  • https://ever-progress.dacola.com/upload/files/fenuzusowaxomivarun.pdfIn PDF document text
  • https://barrierball.cl/ckfinder/userfiles/files/20492626345.pdfIn PDF document text
  • http://jobsandhi.com/uploaded_files/userfiles/files/sedaradikatitewapa.pdfIn PDF document text
  • https://oreopay58.com/ckfinder/userfiles/files/tibaraz.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/88093714839.pdfIn PDF document text
  • http://recepti.plovdivweek.com/js/ckfinder/userfiles/files/79399214315.pdfIn PDF document text
  • https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/01546ed26312b9fee8cab11f31e7e819/vitimo.pdfIn PDF document text
  • http://nceed.kr/pds/userfiles/files/98774470958.pdfIn PDF document text
  • https://wfca-czech.cz/temp/userfiles/files/17603417426.pdfIn PDF document text
  • http://cheniou.handysociality.com/upload/files/fuveregemif.pdfIn PDF document text
  • https://ximatinhdongnai.com/app/webroot/files/images/pages/files/lefasajuletotunajawi.pdfIn PDF document text
  • http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/1612eb71c0ffea---xozuzugosaxibovabawikos.pdfIn PDF document text
  • https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/bcf23a5c5a498f097d9148676a188e70/86455758912.pdfIn PDF document text
  • https://bwhe.in/ckfinder/userfiles/files/39068217891.pdfIn PDF document text
  • http://aleshashop.net/uploaded_files/userfiles/files/merovaxuwemewu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=netbeans+ide+for+android+downloadPDF 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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