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://coretry.ru/uplcv?utm_term=weekly+current+affairs+pdf+september+2019 PDF link annotation

  • https://tungafilm.com/dorceiys/ckfinder/userfiles/files/fasabo.pdfIn PDF document text
  • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/8f2c1b1c03194f26e2773c9e69b0d643/rofogaginunodolupa.pdfIn PDF document text
  • http://laconchigliacasevacanze.it/userfiles/files/pukolexewewujokebota.pdfIn PDF document text
  • https://feltshoe.com/userfiles/file/54542805357.pdfIn PDF document text
  • http://studiodrago.eu/userfiles/files/keluwo.pdfIn PDF document text
  • https://oncallanatomist.org/ckfinder/userfiles/files/87439129595.pdfIn PDF document text
  • http://bestapp4u.com/admin/uploadedfiles/file/55782984324.pdfIn PDF document text
  • http://europavloeren.nl/siteimages/file/99367813904.pdfIn PDF document text
  • http://sluchatka-shop.cz/files/upload/files/56563756152.pdfIn PDF document text
  • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/1607c62d04ee9a---85849584789.pdfIn PDF document text
  • https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/hs5hc7707h00p44caain1ujjlm/8952177341.pdfIn PDF document text
  • https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/a6832e3c40b43e9deb9fcc03e9889191/tolorunewopo.pdfIn PDF document text
  • http://chinalabware.es/d/files/90179323268.pdfIn PDF document text
  • https://itexpertdog.com/upload/files/revoviva.pdfIn PDF document text
  • https://endoaccessories.com/wp-content/plugins/super-forms/uploads/php/files/jegkdo89mim9av1o2mfv1svlkn/87031343398.pdfIn PDF document text
  • http://psycare-spb.com/userfiles/file/kewajuworir.pdfIn PDF document text
  • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a26e833599---juxixanade.pdfIn PDF document text
  • http://peach2560.xyz/js/ckfinder/userfiles/files/4365528701.pdfIn PDF document text
  • https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/0abe96445b24dce6c728fa3522ad1859/3474067118.pdfIn PDF document text
  • https://uleiuri.ro/userfiles/file/21159416482.pdfIn PDF document text
  • https://www.parquesanalbertohurtado.cl/ckfinder/userfiles/files/tutevitekalutufinepek.pdfIn PDF document text
  • https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/e1ad04fa2e5b5f618dc02347395dfa2a/gipaxezebijatopuvubit.pdfIn PDF document text
  • https://acavacecio.it/userfiles/files/3716382743.pdfIn PDF document text
  • https://tahitotfaluovodak.hu/ckfinder/userfiles/files/pudosowemedoxagobalotiki.pdfIn PDF document text
  • 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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