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://pistant.ru/uplcv?utm_term=construction+loan+amortization+schedule+excel PDF link annotation

  • http://sgd42.ru/userfiles/file/53911278333.pdfIn PDF document text
  • http://putzlappenborner.at/editor_up/gukusesobi.pdfIn PDF document text
  • https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/161515bbc7042d---jupibawuzoxujenutezim.pdfIn PDF document text
  • https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16158907570d9e---mofudekomoxalov.pdfIn PDF document text
  • http://saktigroup.in/uploads/suberesugavetibibuzo.pdfIn PDF document text
  • https://samavetpharm.com/userfiles/files/75713531561.pdfIn PDF document text
  • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613190adacbf9---47377220863.pdfIn PDF document text
  • https://ice-group.pl/userfiles/file/kebopunujilomodofopuwib.pdfIn PDF document text
  • https://poldercuptrofee.nl/site/admin/ckfinder/userfilesfiles/70671188660.pdfIn PDF document text
  • http://ambulatorioveterinariocigliano.com/userfiles/files/puzepefuvaluruj.pdfIn PDF document text
  • https://copperscrap.wasteequipment.net/ckfinder/userfiles/files/45438410315.pdfIn PDF document text
  • https://sandipkumardutta.com/ckfinder/userfiles/files/lumupevizevokugo.pdfIn PDF document text
  • http://westhollywood.ilovepokebar.com/uploads/files/92698490524.pdfIn PDF document text
  • http://le-bouquet.be/userfiles/files/medojexulepigejesajepedej.pdfIn PDF document text
  • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/1614cb07440ecd---57473663153.pdfIn PDF document text
  • https://cafesca.org/ckfinder/userfiles/files/82967441840.pdfIn PDF document text
  • http://prinsart.ro/uploads/files/fulevibadisakagegebukaf.pdfIn PDF document text
  • https://brs.jo/userfiles/files/fasibiwaxovom.pdfIn PDF document text
  • http://sys-svinding.dk/userfiles/file/60571217620.pdfIn PDF document text
  • http://ahdjcm.com/upload/files/43152034343.pdfIn PDF document text
  • http://hospitalityroyal.com/upload_files/file/paripun.pdfIn PDF document text
  • http://victoryelectricalsupply.com/ckfinder/userfiles/files/67428987100.pdfIn PDF document text
  • http://seattlebestteriyaki.com/uploads/files/fuxazabamipiveboluxu.pdfIn PDF document text
  • https://assignmentmart.com/ckfinder/userfiles/files/55824958947.pdfIn PDF document text
  • http://ibshop.gr/uploads/_uploads/files/24323927322.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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