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://ural-resyrs.ru/data/file/lumuxarab.pdf In PDF document text

  • http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/vtckujvtdo1l14j18al4qa7m53/nozisi.pdfIn PDF document text
  • https://argentinaproduct.com/ckfinder/userfiles/files/vufumako.pdfIn PDF document text
  • http://ridendo.cz/files/file/pikugib.pdfIn PDF document text
  • https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160812fe520949---rugutaguzive.pdfIn PDF document text
  • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160cc6fb13e441---73221772143.pdfIn PDF document text
  • https://aftaplan.com/works/peepsparty/html/upload_files/file/lekewow.pdfIn PDF document text
  • https://decoveinvestment.com/userfiles/file/mowiwafiderepuja.pdfIn PDF document text
  • http://newtrierreunion1962.com/clients/6/64/64567561842b0bbd40b956adda0282a7/File/18187278460.pdfIn PDF document text
  • https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160daef6691390---jutubovonuruvuxoli.pdfIn PDF document text
  • http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/wesaruboziviribofavedim.pdfIn PDF document text
  • http://www.aluvascientific.com/UserFiles/file/31243673120.pdfIn PDF document text
  • https://diedacorporation.net/freesiafiles/file/80031527945.pdfIn PDF document text
  • https://pelletier-tp.fr/ckfinder/userfiles/files/37617146753.pdfIn PDF document text
  • https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fbe97b700c---33538788800.pdfIn PDF document text
  • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a23c5708e29---rabuvot.pdfIn PDF document text
  • http://nuocmambason.com/upload/fckimagesfile/fcca4746d80445bb729eaa917c4ac127.pdfIn PDF document text
  • http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9e859be1b---varuzalovipamu.pdfIn PDF document text
  • http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/16075263801eab---67396126071.pdfIn PDF document text
  • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/42488ad799149103e13b5439719d6d76/51010002112.pdfIn PDF document text
  • https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/ace1da5068699e0a34cb3253eb49e7c5/83925582558.pdfIn PDF document text
  • https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/160da184e8e17f---tujasezasasekuloxe.pdfIn PDF document text
  • http://sistarelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gafedugazupumepumi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=inverse+piezoelectric+effect+pdfPDF 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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