Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b8b0d6df691---39803712342.pdf In PDF document text

  • http://huonglonghotel.com/uploads/image/files/22096818197.pdfIn PDF document text
  • http://aaaexpressac.com/userfiles/file/32876717441.pdfIn PDF document text
  • http://stonebreaker.at/38779405051.pdfIn PDF document text
  • http://foodzipo.com/uploads/userfiles/files/dupebur.pdfIn PDF document text
  • http://anchor-m.com/js/upload/files/zarisurilujoberakekijuje.pdfIn PDF document text
  • http://techscreening.com/userfiles/files/64519054317.pdfIn PDF document text
  • https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/63ce8c30b1cdb8573d8c6a8dce3a5319/62675842886.pdfIn PDF document text
  • https://mertlakustika.cz/images/pages/file/87666867707.pdfIn PDF document text
  • https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/96bd93eb7cf6c2333bb2dd6017972d7c/30713898362.pdfIn PDF document text
  • http://xn--l3chcucnqd9c0eua7b1k.com/user_img/files/vejobowunopumebebek.pdfIn PDF document text
  • http://riversedgefm.com/files/file/tewepuzad.pdfIn PDF document text
  • http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/85727009310.pdfIn PDF document text
  • http://niszczeniewaw.pl/userfiles/file/44284686493.pdfIn PDF document text
  • http://aimecostruzioni.it/userfiles/files/zipideto.pdfIn PDF document text
  • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608023e74fc93---84910380377.pdfIn PDF document text
  • https://apskarota.org/userfiles/file/xekajipati.pdfIn PDF document text
  • http://fmi.lu/userfiles/files/11596107125.pdfIn PDF document text
  • http://mawaevents.com/uploads/file/6519057551.pdfIn PDF document text
  • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce0fcc74a9---xijev.pdfIn PDF document text
  • http://pphjako.pl/userfiles/file/karulobaxikiwepesojapov.pdfIn PDF document text
  • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a4c1dd47232---dupogarabolapijorufo.pdfIn PDF document text
  • http://brenna-ski.pl/userfiles/file/82618701924.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=is+1570+part+6+pdfPDF link annotation
  • https://b2cdemo.tickets.com/content/files/zonebavo.pdfIn PDF document text
  • 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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