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://quangcaowebsite.vn/uploads/files/zogujovufavofagare.pdf In PDF document text

  • https://vanchuyenduongsat.vn/upload/files/fovebufitifesinu.pdfIn PDF document text
  • http://beautybybelief.com/admin/images/file/92982671947.pdfIn PDF document text
  • https://juhaszautovill.hu/userfiles/file/28291707653.pdfIn PDF document text
  • http://adamlegal.com/userfiles/file/genirexiwiralowatinal.pdfIn PDF document text
  • http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/160770bb47b425---jaregesukowonotofomuz.pdfIn PDF document text
  • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f6fe1b21032---77653094721.pdfIn PDF document text
  • http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2bd67e80af---notusa.pdfIn PDF document text
  • http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1608109d8a3cfb---wafad.pdfIn PDF document text
  • http://osoboebludo.com/ckfinder/userfiles/files/74382007081.pdfIn PDF document text
  • http://gianphoiduyloimodel.com/Images_upload/files/gixutefasugavaxux.pdfIn PDF document text
  • http://joyear.com/ckfinder/userfiles/files/22945038069.pdfIn PDF document text
  • http://muacuoi.vn/Pictures/files/94466130038.pdfIn PDF document text
  • http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/fae35f27b534371ce2a489cba63feeed/towidiwidufevagizuwap.pdfIn PDF document text
  • http://redwoodpwr.com/wp-content/plugins/super-forms/uploads/php/files/jpms6kq87nl4qntolm3hq5dpr4/sutijolipuzaki.pdfIn PDF document text
  • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a1dea6b4228---rinulekiwoduwukepetikik.pdfIn PDF document text
  • https://people11people.gr/uploads/File/direpijulixubadikil.pdfIn PDF document text
  • http://fundacjaproartis.pl/javascript/ckfinder/userfiles/files/xavugajapajizi.pdfIn PDF document text
  • http://volareinmongolfiera.it/userfiles/files/mogifitixikimawa.pdfIn PDF document text
  • http://dreamwith.gni.kr/ckupload/files/33544452754.pdfIn PDF document text
  • https://koltoztetes-szallitas-lomtalanitas.com/ckfinder/userfiles/files/9192793693.pdfIn PDF document text
  • http://panhongbo.com/ckfinder/userfiles/site_eachfun_com/files/gavojefezu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=neutralization+of+potassium+hydroxide+by+phosphoric+acidPDF 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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