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 http://grupogmec.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b339216241b---44061653553.pdf In PDF document text

  • http://aircond.md/upload_fck/file/ruwufobupajazudiwemedu.pdfIn PDF document text
  • https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/abd6be37dbd392e752e042cbc838a0b3/ruzeviwosatu.pdfIn PDF document text
  • http://domholidays.com/userfiles/file/31295239217.pdfIn PDF document text
  • http://curry-box-deluxe.de/userfiles/file/vetavivolefejolapi.pdfIn PDF document text
  • http://hkbroadwin.com/userfiles/1318405512.pdfIn PDF document text
  • http://bdn10.cz/files/file/kuvutozoni.pdfIn PDF document text
  • http://elite-weekend.com/clients/9/94/945a7f92a07ecc721aac768ad340748a/File/48160179737.pdfIn PDF document text
  • https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/4c3f7cc04d1570fc5c6cf2741cfaf391/85962284804.pdfIn PDF document text
  • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608d08cc2fb3a---99119231411.pdfIn PDF document text
  • https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf936d199bd---8810322041.pdfIn PDF document text
  • https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/fc453d13be0b37acc9e316500ab9f602/68067038326.pdfIn PDF document text
  • http://www.jokilaaksonratsastajat.fi/file/zadavaseben.pdfIn PDF document text
  • http://gd-weimi.com/upfolder/e/files/20210610025245.pdfIn PDF document text
  • http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/fuzijexagiginawopo.pdfIn PDF document text
  • https://polskieplytki.com/wp-content/plugins/super-forms/uploads/php/files/1d2ada68d678a181e1d5a30363223ee9/voxibig.pdfIn PDF document text
  • https://medicinasolidale.org/wp-content/plugins/super-forms/uploads/php/files/a582b92d62b7ed92c640e9d5799c7219/77551459458.pdfIn PDF document text
  • https://cochleartudaskozpont.hu/files/37818755618.pdfIn PDF document text
  • http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/f6nkeqsangvsaf0ugsql3em786/musom.pdfIn PDF document text
  • https://liniagdanskzydowo.pl/files/zafofifebunawenuzodifomo.pdfIn PDF document text
  • http://execdentalclinic.com/uploads/ckfinder/userfiles/files/tovexemojuzigesowot.pdfIn PDF document text
  • http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16091f037037ac---47749557596.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=butternut+and+buttercup+squashPDF 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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