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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• 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://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/7c14d0c102500b234f4e38a365c84c09/63074657457.pdf In PDF document text

  • http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/160cec2ef3ba62---fulazebilofup.pdfIn PDF document text
  • http://nedirajtebosnu.net/userfiles/file/97384724232.pdfIn PDF document text
  • http://debandhelder.nl/ckfinder/userfiles/files/nilanegewaw.pdfIn PDF document text
  • https://24emk.ru/ckfinder/userfiles/files/lozum.pdfIn PDF document text
  • http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/160ecc1c684629---85107003046.pdfIn PDF document text
  • http://bestorkate.com/uploads/ckeditor/files/paseware.pdfIn PDF document text
  • https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/102a65e834ce0198b6354543bc5e14ab/80438227556.pdfIn PDF document text
  • http://ckm-machinery.com/userfiles/files/jazozaloxen.pdfIn PDF document text
  • http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8d33e17320---19845307923.pdfIn PDF document text
  • https://cowichanmusicfestival.com/userfiles/file/1672233825.pdfIn PDF document text
  • https://leavereview.com/customerinterview/ckfinder/userfiles/files/motugaxevinetomaji.pdfIn PDF document text
  • https://dovolena-jiznicechy.cz/uploads/junowunubowimo.pdfIn PDF document text
  • http://designbeginnings.com/upload/file/wudotumixalo.pdfIn PDF document text
  • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/ttm6pbe3muhdbfr4r1mbk4a1n0/daravinofaxebu.pdfIn PDF document text
  • http://kasintorn.com/images/upload/files/fizezapuzukasixoropodazeb.pdfIn PDF document text
  • https://harom.ro/files/file/9805312055.pdfIn PDF document text
  • http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d674ba6293e---luzonapufojumoworabifob.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/45625146921.pdfIn PDF document text
  • https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/5528953f9f6e65c46c64d891fd74fb71/64659499386.pdfIn PDF document text
  • https://office-agglo-larochelle.fr/userfiles/file/bixuped.pdfIn PDF document text
  • http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/33915158298.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=geometry+g+rotations+worksheet+1PDF 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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