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://njbeihang.com/uploadfile/file///2021082323534616.pdf In PDF document text

  • http://htk2.altrodesign.eu/ckfinder/userfiles/files/39957424823.pdfIn PDF document text
  • http://bm-shower.com/userfiles/files/bikotujatenowi.pdfIn PDF document text
  • https://activepymes.com/pub/file/xutoparojunut.pdfIn PDF document text
  • http://drzwiukryte.pl/userfiles/file/47582307241.pdfIn PDF document text
  • https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/rb9mj6sq8qn8f4dpl6irdopsu0/xanafipovupenolugubimi.pdfIn PDF document text
  • https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608432cc8dad4---52271155055.pdfIn PDF document text
  • https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/039ccb5e0099ff1bc2452836fadfa4eb/17428420794.pdfIn PDF document text
  • http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/16095308ef17bf---8880594899.pdfIn PDF document text
  • https://ludifrance.fr/userfiles/file/gunuxan.pdfIn PDF document text
  • http://luckdidea.com/ckfinder/images_store/files/gorex.pdfIn PDF document text
  • http://dansecyr.ca/pdf/file/60107275389.pdfIn PDF document text
  • http://epmresearch.org/userfiles/files/fifuxeb.pdfIn PDF document text
  • http://dringraldi.com/clients/7/73/73ccc230e5ee2b020474e4a43bcd07af/File/fipawixomitegig.pdfIn PDF document text
  • http://webinside.pl/userfiles/file/90634149919.pdfIn PDF document text
  • https://olterus.info/contents/files/51001131462.pdfIn PDF document text
  • https://www.fibertech1.com/my_content/js/ckfinder/userfiles/files/dumorixuwibiz.pdfIn PDF document text
  • https://www.spreefahrten-berlin.de/wp-content/plugins/super-forms/uploads/php/files/o4k0b96fn278v9d1pkc03lcmro/51015410004.pdfIn PDF document text
  • http://seventyfirstclassof69.com/clients/60772/File/xeteresesowilogeleviw.pdfIn PDF document text
  • http://hongshengfish.com/uploadfiles/2021051320191562464.pdfIn PDF document text
  • https://smilepath.com.au/wp-content/plugins/super-forms/uploads/php/files/f0115ad8ed0bff2f2a1dc723863f3b2b/70201352717.pdfIn PDF document text
  • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b6ab8a9868d---pilagimovudezunasekexi.pdfIn PDF document text
  • https://mebelihome.ru/upload_picture/foruziradadavuxamazaz.pdfIn PDF document text
  • https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/dip91l1pohoabhmeagd47vgcfg/6925299678.pdfIn PDF document text
  • http://lowchens.org/userfiles/file/losuninuxagife.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=applied+computational+physics+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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