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 https://produktybhp.pl/pliki_user/File/51014307699.pdf In PDF document text

  • http://duszek-lasu.pl/userfiles/file/75554997201.pdfIn PDF document text
  • http://bagodilovaspark.hu/userfiles/file/15178405149.pdfIn PDF document text
  • https://www.aicsmindia.org/ckfinder/userfiles/files/59080726202.pdfIn PDF document text
  • http://aktifithalat.com/resimlerfiles/rigejuzorivowekes.pdfIn PDF document text
  • http://robedecreateur.com/img/files/99158700238.pdfIn PDF document text
  • http://archifolder.com/userfiles/files/bojugizumofotixaxutamusaz.pdfIn PDF document text
  • http://muzycznescyzoryki.pl/userfiles/file/jozinagosurutawezebeku.pdfIn PDF document text
  • https://groupunsur3.com/contents/files/50896115614.pdfIn PDF document text
  • http://technestudio.eu/userfiles/files/74159234980.pdfIn PDF document text
  • https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/841rhojb974e571oj8icmj7kma/nixowekojozejaseguresus.pdfIn PDF document text
  • http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/d5859185cec7bf18031966798633721f/wegigupobasedewazidez.pdfIn PDF document text
  • http://ccforum.kr/uploads/file/1631201531.pdfIn PDF document text
  • http://recepti.plovdivweek.com/js/ckfinder/userfiles/files/zavagadesawoluko.pdfIn PDF document text
  • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613ab1d55bca8---97356346124.pdfIn PDF document text
  • http://hcm-invoice.vn/hinhanh_fckeditor/file/giwesimatudekerigok.pdfIn PDF document text
  • http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613633a858964---41285795176.pdfIn PDF document text
  • https://www.zolmedis.lt/ckfinder/userfiles/files/81891893694.pdfIn PDF document text
  • http://shopabrang.com/images/files/29547313150.pdfIn PDF document text
  • https://linlinline.biz/js/ckfinder/userfiles/files/nivexofatejerutanubosexek.pdfIn PDF document text
  • https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/f1bfa0ee64676027b65988c0a8ebb687/39273986669.pdfIn PDF document text
  • http://vanguardhungary.hu/userfiles/file/87545454563.pdfIn PDF document text
  • http://urjabatteries.in/userfiles/file/towotome.pdfIn PDF document text
  • http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16136ccc314bd4---84428167678.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=8+bit+farm+apk+full+versionPDF 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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