Malicious PDF — malware analysis report

Heuristics 7

• 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.
• JavaScript action low PDF_JAVASCRIPT
  PDF contains a /JavaScript action. 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://knurussian.kr/DATA/upload/files/202109120831563154.pdf In PDF document text

  • http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614165f278f8c---dapege.pdfIn PDF document text
  • https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/b32700185191f2de4da26599ff4f10d4/3944801063.pdfIn PDF document text
  • http://nage-z.com/ckfinder/userfiles/files/69871544104.pdfIn PDF document text
  • http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613ebf6ad7ce6---giwesevadexekem.pdfIn PDF document text
  • http://basyapiemlak.com/yukleme_klasoru/userfiles/file/60322258214.pdfIn PDF document text
  • https://hotel-la-licorne.fr/userfiles/file/54585982527.pdfIn PDF document text
  • http://silver.jo/ckfinder/blanc/files/31634095107.pdfIn PDF document text
  • https://maytinhdalat.vn/images/uploads/files/13994599755.pdfIn PDF document text
  • https://bangvetthuong.com/luutru/files/85771977854.pdfIn PDF document text
  • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/1613251aa6c880---mewupulen.pdfIn PDF document text
  • http://studiobonvino.com/userfiles/files/vanedivaxofiji.pdfIn PDF document text
  • http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/161383d834650e---nusuwe.pdfIn PDF document text
  • http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/161321637195d6---51767041327.pdfIn PDF document text
  • https://sitarasign.ir/data/file/22970909787.pdfIn PDF document text
  • http://needychild.org/ckfinder/userfiles/files/dojegitogado.pdfIn PDF document text
  • http://ekogamma.pl/javascript/ckfinder/userfiles/files/5951890436.pdfIn PDF document text
  • https://jagamimpi.info/contents/files/nememefotavipaluf.pdfIn PDF document text
  • http://reckdance.pl/userfiles/file/kaxunatudojikukiminiz.pdfIn PDF document text
  • http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613252cce868d---20509183115.pdfIn PDF document text
  • http://filtrydokoparek.pl/img/all/83545185026.pdfIn PDF document text
  • http://labsshop.com/d/files/nezilajiragomajemaramulo.pdfIn PDF document text
  • http://arcenevents.nl/site/upload/files/47531256872.pdfIn PDF document text
  • http://quangcaosmsgiare.com/media/ftp/file/tifupetagetazakikal.pdfIn PDF document text
  • https://hilanguage-com-tw.triangle-design.com/files/ritomurowokeso.pdfIn PDF document text
  • http://xn----itbbfrdrdbd4bgy6gi.xn--p1ai/webroot/files/files/87854773687.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=genshin+lag+fix+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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