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://queure.ru/uplcv?utm_term=vmos+rom+download PDF link annotation

  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/m85klo0sdgslcou7udfv3slll6/zeviwomivoposozoguruwujo.pdfIn PDF document text
  • http://thebookmarkcafe.com/uploads/files/69455935164.pdfIn PDF document text
  • https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/839353c38deaab5d6709cea9a2577af4/wotewudexewetixazanuxavaf.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161318a55af33f---73257512632.pdfIn PDF document text
  • http://shrlie.com/upload_fck/file/2021-9-7/20210907190521652753.pdfIn PDF document text
  • http://www.physedu.in/newsite/userfiles/files/pafemowunapozusagaru.pdfIn PDF document text
  • http://phyllisrubensteinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/tisoje.pdfIn PDF document text
  • https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/4c21b0398132db9e915118132fa68668/87981142548.pdfIn PDF document text
  • https://limsurdua.com/contents/files/lefavilitaritupusopogam.pdfIn PDF document text
  • http://vasset.bg/userfiles/file/delux.pdfIn PDF document text
  • https://gadd-asso.org/userfiles/file/mowufugadiwesupelok.pdfIn PDF document text
  • http://gonzagafood.com/userfiles/files/dosoki.pdfIn PDF document text
  • https://kvizek.hu/ckfinder/userfiles/files/mudunarakegazipuzuduke.pdfIn PDF document text
  • http://biomax.shop/filespath/files/20210907121943.pdfIn PDF document text
  • https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/16135cfa3c5fe5---gebolosedibopisel.pdfIn PDF document text
  • http://knx-shop.ru/admin/ckfinder/userfiles/files/97390590848.pdfIn PDF document text
  • https://futuresbuilder.net/dayafter/uploadimages/newsimages/file/58707444317.pdfIn PDF document text
  • http://itnetworkconsultingsf.com/helpdesk/app/webroot/img/userfiles/files/4460627643.pdfIn PDF document text
  • http://corkpotters.com/images/3329325281.pdfIn PDF document text
  • https://olboihorgaszto.hu/editor_up2/14596769423.pdfIn PDF document text
  • http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/1612f96885cfcf---9398528827.pdfIn PDF document text
  • http://www.rpv-drachten.nl/files/file/93691088066.pdfIn PDF document text
  • http://hanyangsteel.com/files/fckeditor/file/158515051261393d8e1b59a.pdfIn PDF document text
  • http://ministryofrum.com/memlogos/file/gowinomejiga.pdfIn PDF document text
  • http://hoadondientu-ptp.vn/images/ckeditor/files/69090763286.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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