Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://crysiq.ru/uplcv?utm_term=how+to+scan+qr+code+from+android PDF link annotation

  • http://www.frank-diagn.hu/userfiles/files/40441988271.pdfIn PDF document text
  • http://hyosangjo.com/userfiles/file/20210910142858.pdfIn PDF document text
  • http://cokhilegia.com/upload/files/85602245368.pdfIn PDF document text
  • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613c432f5547d---winukiludesoxegulibiwokib.pdfIn PDF document text
  • https://bibonatura.hu/ckfinder/userfiles/files/7039490687.pdfIn PDF document text
  • https://www.fibertech1.com/my_content/js/ckfinder/userfiles/files/59491116153.pdfIn PDF document text
  • https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/1739fe7aece67f5aba7a0de28b6b005f/pekonoremuxotimaxim.pdfIn PDF document text
  • http://orsini-blasioli.it/userfiles/files/guwegujitopexatosu.pdfIn PDF document text
  • http://szyldkj.com/luodan/images/userfiles/file/11758562239.pdfIn PDF document text
  • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b76d3eb80a---49679333035.pdfIn PDF document text
  • http://jjw-led.com/userfiles/file/fofasiwefafevotawagena.pdfIn PDF document text
  • http://dush-kz.ru/uploads/fck/file/toxidiremowegevog.pdfIn PDF document text
  • http://cocoon-source-harmonie.fr/public/file/1449266538.pdfIn PDF document text
  • http://pc75.net/upfiles/file/1631437838.pdfIn PDF document text
  • https://www.campacinter.com/image/upload/File/zebuwinu.pdfIn PDF document text
  • https://prosaison.fr/userfiles/files/74498555881.pdfIn PDF document text
  • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/plutplj15lv2emhf5vdotv0n56/fitewotesunesemejevelekix.pdfIn PDF document text
  • https://zenmobile.in/jaipriyart/uploads/files/birujibunun.pdfIn PDF document text
  • https://garnizone.com/userfiles/file/40238553207.pdfIn PDF document text
  • http://www.mananthavadynorbertines.org/www/js/ckfinder/userfiles/files/9131978672.pdfIn PDF document text
  • https://dreptultau.hotnews.md/upload/userfiles/files/72903782987.pdfIn PDF document text
  • http://agriturismolataggiasca.eu/userfiles/files/71602349408.pdfIn PDF document text
  • http://anapro.com/ckfinder/userfiles/files/woletusawejap.pdfIn PDF document text
  • https://minlinart.com/archive/upload/files/13008104271.pdfIn PDF document text
  • https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/e7935c113c6c06b6845f4c8206ea68c6/86640829277.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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