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 https://synerhu.ru/uplcv?utm_term=short+erotic+stories+pdf PDF link annotation

  • http://geofer.eu/userfiles/files/11131227466.pdfIn PDF document text
  • https://artinterior.bg/userfiles/file/27793788064.pdfIn PDF document text
  • http://xn--80aafbjcazdrhzgiddbbcsg4l.xn--p1ai/pict/file/kibidagabozirikowo.pdfIn PDF document text
  • https://shieldtech.cz/ckfinder/userfiles/files/65318196546.pdfIn PDF document text
  • https://baglab.pl/galeria/file/74895373000.pdfIn PDF document text
  • https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/b40cb2590c13ba0bdfe52b6fc7b95fd8/8378580922.pdfIn PDF document text
  • http://thaisomboonautopart.com/userfiles/files/27789468013.pdfIn PDF document text
  • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/161371dba59eb3---39387075914.pdfIn PDF document text
  • http://knshzj.com/CKEdit/upload/files/46403560263.pdfIn PDF document text
  • http://ardeche.proximeo.com/ckfinder/userfiles/files/62051718050.pdfIn PDF document text
  • http://abhinavabhishad.org/userfiles/file/tananidikurur.pdfIn PDF document text
  • http://driver-jazda.pl/upload/file/fesulorobulonoxalorajig.pdfIn PDF document text
  • https://gagiongvitgiong.com/ckfinder/userfiles/files/60702785056.pdfIn PDF document text
  • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/bbe7e9a327fa4063041c9d835abfff6c/964389070.pdfIn PDF document text
  • https://bistakalikotenetwork.com/userfiles/file/wufela.pdfIn PDF document text
  • http://tanriovermensucat.com/uploads/genel/files/33501931677.pdfIn PDF document text
  • https://tourgardan.com/basefile/tourgardancom/files/tafomakosuwuxunebi.pdfIn PDF document text
  • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613cf2349b409---renafale.pdfIn PDF document text
  • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/l5ecqeqicgpiiqusj5vvniu6q2/xabudogaxixupidowutilaz.pdfIn PDF document text
  • http://www.pantonerestauri.com/ckfinder/userfiles/files/34115313335.pdfIn PDF document text
  • http://www.jfac.kr/ckfinder/userfiles/files/webememugi.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/1015039115.pdfIn PDF document text
  • https://mut-zur-veraenderung-hambuch.de/userfiles/file/keludolet.pdfIn PDF document text
  • http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613fe541a91b8---43762253402.pdfIn PDF document text
  • http://serenetour.com/image/upload/File/28320903232.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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