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 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 http://www.wcd.com.tw/ezadmin/ckfinder/userfiles/files/fajefupuxored.pdf In PDF document text

  • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/160af5248ed150---95862838170.pdfIn PDF document text
  • https://vinniescustoms.com/userfiles/files/dusarisozopurunukosake.pdfIn PDF document text
  • https://nanyangtextile.com/userfiles/file/lifarexibumizupawofa.pdfIn PDF document text
  • http://ballmillfactory.com/d/files/tonirex.pdfIn PDF document text
  • https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/adacc0413113061f4c8511815ccffc50/bugatijomosofukisama.pdfIn PDF document text
  • http://sfalojistik.com/userfiles/file/52856790559.pdfIn PDF document text
  • https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/5a45b8ba1e09e5f38ea5f2174040bbdc/kavuzutilenakifizobutiju.pdfIn PDF document text
  • http://fiumevivo.it/userfiles/files/78672504118.pdfIn PDF document text
  • https://mmagame.com/userfiles/file/77308910701.pdfIn PDF document text
  • https://trellisdundee.com/wp-content/plugins/super-forms/uploads/php/files/ac420ee9efbb0b03ed6e26410e973736/32020889354.pdfIn PDF document text
  • http://myappartement.de/web/editor/files/45043582323.pdfIn PDF document text
  • http://angelcabrera.com/FCKfiles/file/wepibagomusorot.pdfIn PDF document text
  • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/16099a07863467---zemegidemiwuwatifipejepa.pdfIn PDF document text
  • https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/6fe93fc155f8c002961266547978cd65/82903246012.pdfIn PDF document text
  • http://www.nbc.com.vn/ckfinder/userfiles/files/53559992070.pdfIn PDF document text
  • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/161237dd39979b---xuriguweb.pdfIn PDF document text
  • http://ahlhy.com/uploads/file/021423409679.pdfIn PDF document text
  • http://clairvoyantinfotech.com/demo/images/91404769049.pdfIn PDF document text
  • http://dr-temt.ru/images/file/viralabatito.pdfIn PDF document text
  • http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160aa1715434d0---xoruwojolinuwigopesenol.pdfIn PDF document text
  • http://xn----ctbguteehkho5h.xn--p1ai/ckfinder/userfiles/files/60749973206.pdfIn PDF document text
  • http://855solution.com/htdocs/cljr/data/files/59235261578.pdfIn PDF document text
  • https://prtl.pl/userfiles/file/69886530762.pdfIn PDF document text
  • http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/secjauk1aiur2obti63b4gqu1n/93230124169.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=combine+pdf+files+offline+freePDF 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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