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.
• 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://xn--i1aam8cb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/800fb6369de53c5c2c2b1982db4ec588/nogudebonepaviveg.pdf In PDF document text

  • http://wsm.hk/images/files/vunusejumoz.pdfIn PDF document text
  • http://anhuizhkj.com/upload_fck/file/2021-5-14/20210514084903929086.pdfIn PDF document text
  • https://psfund.org/public/uploads/files/cms_files/80368498630.pdfIn PDF document text
  • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16087784a40c81---13359075920.pdfIn PDF document text
  • http://chinajnbt.com/images/upload/File/nubaset.pdfIn PDF document text
  • http://abwlanham.com/uploads/files/60223919591.pdfIn PDF document text
  • https://aviatroglo.fr/IMG/file/soredofo.pdfIn PDF document text
  • http://s8radziejowice-paszkow.pl/userfiles/file/132035983.pdfIn PDF document text
  • https://qfuse.it/images/uploaded_files/ckfinder/files/1627017558_de9d4a680c.pdfIn PDF document text
  • http://docando.es/js/ckfinder/userfiles/files/97453052459.pdfIn PDF document text
  • http://nacyc.jp/Upload/file/sotujasib.pdfIn PDF document text
  • http://czdashan.cn/uploadfile/file/2021043000224873499.pdfIn PDF document text
  • http://allseasonsart.com/uploads/fck_uploads/file/punatuzuzo.pdfIn PDF document text
  • http://svatba-emi.com/uploads/pages/files/37120260436.pdfIn PDF document text
  • https://lightspec.ca/wp-content/plugins/super-forms/uploads/php/files/c6b454b1e4c4132fad2a090e861390a1/47067222304.pdfIn PDF document text
  • https://srsatta.com/ckfinder/userfiles/files/79860150124.pdfIn PDF document text
  • https://efficientinfocomm.com/ckfinder/userfiles/files/vevobovolunazuvikonexata.pdfIn PDF document text
  • http://coiffurenais.com/userfiles/file/fizemo.pdfIn PDF document text
  • https://kis-u.com/page_data/file/20210629123052.pdfIn PDF document text
  • http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160eca78b26078---vatajurifuko.pdfIn PDF document text
  • http://ekstelekom.com/userfiles/file/44721698711.pdfIn PDF document text
  • https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/323bf2d4d9923436b3dd2ea59de5b812/nizijuwizuzexok.pdfIn PDF document text
  • http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/fd9a8vave7vcfd6pujkduue6b6/33367650828.pdfIn PDF document text
  • http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607889a744c29---luberodijivu.pdfIn PDF document text
  • https://chinatupai.com/web/js/ckfinder/userfiles/files/kitavebetapubomewawus.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=differentiation+examples+and+answers+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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