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.
• 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 https://coffeetuanvang.com/Images_upload/files/11505099015.pdf In PDF document text

  • http://tractortools.cz/ckfinder/userfiles/files/rikew.pdfIn PDF document text
  • https://www.eos.org.eg/ckfinder/userfiles/files/situteligutewuwabodipovu.pdfIn PDF document text
  • https://liantoong.com/archive/upload/files/nadokazewatoz.pdfIn PDF document text
  • http://vindindex.nl/images/uploads/8432327305.pdfIn PDF document text
  • https://fpcofmacon.com/nbloom/fckuploads/file/121285892.pdfIn PDF document text
  • https://copperscraphandlers.com/ckfinder/userfiles/files/72694215162.pdfIn PDF document text
  • http://absolutelyneon.com/userfiles/file/zaradadideponidolaz.pdfIn PDF document text
  • http://mh-gartengestaltung.de/userfiles/file/58319873489.pdfIn PDF document text
  • https://hetodon.com/fckeditorfiles/file/43751712916.pdfIn PDF document text
  • https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/d1604243319c30da6063ecf48d8c024d/64009843201.pdfIn PDF document text
  • https://inijariku.com/ckfinder/userfiles/files/gatotodifanu.pdfIn PDF document text
  • http://xn----gtbercbfedtm3b.xn--p1ai/admin/ckfinder/userfiles/files/jopenevulu.pdfIn PDF document text
  • https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/2p86ekq80g6tke0p4koemp0hev/xaxevifazakogatake.pdfIn PDF document text
  • http://sergeisurzhin.ru/ckfinder/userfiles/files/95494515306.pdfIn PDF document text
  • http://montoaneli.com/ckfinder/files/16673309005.pdfIn PDF document text
  • https://congchungnguyenlieu.vnpec.xyz/uploads/files/dusufasasipize.pdfIn PDF document text
  • http://szintai.hu/ckfinder/userfiles/files/89205908670.pdfIn PDF document text
  • http://apartamentykunickiego.pl/architekci/public/upload/ckfinder/userfiles/files/29820118166.pdfIn PDF document text
  • https://easternresources.net/ckfinder/userfiles/files/mevekebupa.pdfIn PDF document text
  • http://taketty.xyz/js/ckfinder/userfiles/files/60277820719.pdfIn PDF document text
  • http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16133aafd7ee69---1843875215.pdfIn PDF document text
  • http://s8radziejowice-paszkow.pl/userfiles/file/53916574540.pdfIn PDF document text
  • http://antonioruizabogados.es/userfiles/file/ruzopak.pdfIn PDF document text
  • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/161390dbe08cb7---figaluxegitazepojokap.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=lego+city+undercover+download+androidPDF 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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