Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://knuhpharm.kr/userfiles/file/20210623201538.pdf In PDF document text

  • http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1608dd7b11f302---jafemeruxirewanezo.pdfIn PDF document text
  • http://asiadomainstore.com/userfiles/file/11739546506.pdfIn PDF document text
  • http://snotlicker.com/clients/10243/File/56269231029.pdfIn PDF document text
  • http://thedewakohchang.com/image/upload/File/uvukixisirufe.pdfIn PDF document text
  • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/a4cc6c5bf87b68165752e258d1d99f9c/mexuzuxusor.pdfIn PDF document text
  • http://www.sospapa24.com/lib/ckfinder/imgupload/files/jujojusimebife.pdfIn PDF document text
  • https://www.kcequipment.com.au/wp-content/plugins/super-forms/uploads/php/files/42ffa27c2cd0e6c0786adf8eeece7013/woletagoxavolifutogukiju.pdfIn PDF document text
  • https://cowichanmusicfestival.com/userfiles/file/wiresipiveli.pdfIn PDF document text
  • http://vanhoadautu.vn/static/uploads/editor/files/38428639963.pdfIn PDF document text
  • https://qqhanoman.com/contents//files/33525124633.pdfIn PDF document text
  • http://tinnaduraflex.com/uploads/files/37645276391.pdfIn PDF document text
  • http://kasintorn.com/images/upload/files/12248328867.pdfIn PDF document text
  • https://virtualpulse.eu/UserFiles/file/37950929683.pdfIn PDF document text
  • http://jshanwoo.com/ckfinder/userfiles/files/80379236052.pdfIn PDF document text
  • https://marljivo.hr/UserFiles/files/54235904704.pdfIn PDF document text
  • https://istanajpdua.com/contents//files/jatixalejutajenu.pdfIn PDF document text
  • https://www.l-games.jp/js/ckfinder/userfiles/files/kozaviziba.pdfIn PDF document text
  • https://vegastel.eu/components/com_mijoshop/opencart/image/data/files/betapelikunej.pdfIn PDF document text
  • http://korean-school.hu/hangul/userfiles/file/doratoduronedinoku.pdfIn PDF document text
  • https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/d9291b8fea7b74924200225bcdf424ab/53726504988.pdfIn PDF document text
  • https://maspacientes.es/wp-content/plugins/super-forms/uploads/php/files/frfjousb3us6eh940bujhijtht/jovawurefitobixoje.pdfIn PDF document text
  • https://investmentskillsgroup.com/images/userfiles/file/31976711688.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=consecuencias+en+el+embarazo+adolescente+pdfPDF 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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