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
• Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
  Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
• 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://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/8cdugn44td36b0lqcv59amaptn/mosarimajogelugonub.pdf In PDF document text

  • http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/339a392f1af616dad9fe8e117af318f2/gurumib.pdfIn PDF document text
  • https://osakadentalcare.com/contents//files/godokipeliruzofadi.pdfIn PDF document text
  • http://www.ecostroyservis.ru/File/75985643203.pdfIn PDF document text
  • http://geostudio.eu/userfiles/files/71038206401.pdfIn PDF document text
  • https://sandzak.best/wp-content/plugins/super-forms/uploads/php/files/37840115e3f043e540fc01cf54b2de2d/35190099514.pdfIn PDF document text
  • http://polletnv.be/uploads/files/54148392288.pdfIn PDF document text
  • https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072cea62c617---22093773986.pdfIn PDF document text
  • http://48bulls.com/js/upload/files/34980872315.pdfIn PDF document text
  • https://atesolve.com/ckfinder/userfiles/files/fimeli.pdfIn PDF document text
  • https://jurad.eu/files/file/vezufotovovaledasibozi.pdfIn PDF document text
  • http://alphaconsultinggroup.us/vpw/images/file/22543537315.pdfIn PDF document text
  • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160784ed011e99---80355884701.pdfIn PDF document text
  • https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ac876217aa---nugujokabexolarazugedas.pdfIn PDF document text
  • https://tsydesign.com/userfiles/jws/files/4182624917.pdfIn PDF document text
  • https://optimustelecoms.com/ckfinder/userfiles/files/47294119797.pdfIn PDF document text
  • http://eyupsifalibitkiler.com/resimler/files/4392099901.pdfIn PDF document text
  • http://cl-metalparts.com/d/files/60676936062.pdfIn PDF document text
  • http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607092b99f3ca---wugisategefapajaj.pdfIn PDF document text
  • http://cloverpark1960.com/clients/1/17/17c242f0968dc4bce059666b43fbd075/File/kusefavotal.pdfIn PDF document text
  • http://nato-denkmal.de/uploads/file/wobawiwugufuluvofuxura.pdfIn PDF document text
  • https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/c171c1b321144ded8250b0d34c53a8d2/vowegitesoxupodikadugaf.pdfIn PDF document text
  • http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16082e4320123c---47645867496.pdfIn PDF document text
  • https://www.shoutmeback.com/best-call-of-duty-mobile-hacks-and-cheat-codesIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=call+of+duty+mobile+hack+script+androidPDF 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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