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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://huntic.ru/uplcv?utm_term=engineering+economy+15th+edition+sullivan+pdf PDF link annotation

  • http://camel-republic.com/media/userfiles/files/23737517619.pdfIn PDF document text
  • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607d5ce058803---92315072006.pdfIn PDF document text
  • http://4bx.pl/public/file/98443305459.pdfIn PDF document text
  • https://clumba-indoor.ru/files/files/roderemulaxijulel.pdfIn PDF document text
  • https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/160908d3c858ad---salomijijolikawadobi.pdfIn PDF document text
  • http://amuseonline.com/absite/userfiles/file/zoteziselubi.pdfIn PDF document text
  • http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/160afa66545087---14406047206.pdfIn PDF document text
  • https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/55229m7th08p8j8s54360ur0ti/74041249851.pdfIn PDF document text
  • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c0e7d7efd7---liwimamip.pdfIn PDF document text
  • https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/160bf914509883---73357133181.pdfIn PDF document text
  • http://ymjgolf.com/file_media/file_image/file/mubopapolasow.pdfIn PDF document text
  • https://norservis.com/files/files/dedudelapakutorinipepo.pdfIn PDF document text
  • https://nacionalequipamentos.com/ckeditor/uploads/files/mapof.pdfIn PDF document text
  • http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8c0359c485---19889061387.pdfIn PDF document text
  • https://haciendaloscipreses.cl/upload/file/takezojixodi.pdfIn PDF document text
  • https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f73832905e0---98573579677.pdfIn PDF document text
  • https://sieseam.org/userfiles/files/mutupaneniroje.pdfIn PDF document text
  • http://veterinarioassociatopacinidallatorre.eu/userfiles/files/suzoba.pdfIn PDF document text
  • http://mastersequipments.com/ckfinder/userfiles/files/jutitiwugibul.pdfIn PDF document text
  • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/4vicgrmk41e1truv8foqgkel3r/30436892110.pdfIn PDF document text
  • https://canadiancontractorservices.com/wp-content/plugins/super-forms/uploads/php/files/d0imt6pd87ffen6q4ktopvl1o2/64883885794.pdfIn PDF document text
  • http://ayurveda-shiatsu-nice.com/upload/files/birupodetibojexiwowot.pdfIn PDF document text
  • https://fetogram.com/images/upload/files/30589653197.pdfIn PDF document text
  • http://stagticket.com/fck_upload/file/jatowajefininesuduti.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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