Malicious PDF — malware analysis report

Heuristics 9

• 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.
• 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.
• 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://philabc.ru/uplcv?utm_term=tap+tap+dig+mod PDF link annotation

  • http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/faxarifipozexajawu.pdfIn PDF document text
  • https://gameadvisers.com/js/new/fckeditor/userfiles/file/15942831151.pdfIn PDF document text
  • http://geometrabottero.it/userfiles/files/9917442256.pdfIn PDF document text
  • http://tele-klass.ru/i/upload/files/54049538933.pdfIn PDF document text
  • https://renewone.de/files/93717336341.pdfIn PDF document text
  • http://www.cpnatacao.pt/backoffice/ckfinder/userfiles/files/nebuluzaxafiv.pdfIn PDF document text
  • https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/7defddf82f35f8e0b4ab85de4fefc2e6/jivamojiladodatajofulibum.pdfIn PDF document text
  • https://mysmartedu.com/uploadimages/files/50697373451.pdfIn PDF document text
  • http://veterinarioassociatopacinidallatorre.eu/userfiles/files/vemomarukakaxuzudozeleje.pdfIn PDF document text
  • http://faradtvandor.hu/picture/userfiles/file/90676458843.pdfIn PDF document text
  • http://wawabed.pl/uploads/userfiles/file/14684769664.pdfIn PDF document text
  • https://thuaphatlaihoanghuy.com/uploads/files/38497411141.pdfIn PDF document text
  • http://livilgirls.com/files/nedutenamatukemul.pdfIn PDF document text
  • http://champagne-marc-chauvet.com/images/files/sokuvurogivel.pdfIn PDF document text
  • https://rozynoklinika.lt/userfiles/file/9139051225.pdfIn PDF document text
  • http://munnarinfo.in/userfiles/file/dodegubexexevewiv.pdfIn PDF document text
  • https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/af6oct0il1kpk4o4ll927ifp8u/29312240488.pdfIn PDF document text
  • http://theemasternetworker.com/ckfinder/userfiles/files/wukusipoxofika.pdfIn PDF document text
  • http://wakesup.org/userfiles/file/8018598975.pdfIn PDF document text
  • https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/04f890cf2c64584c0fd7e4a40fcf1da6/82214958523.pdfIn PDF document text
  • https://tutorlookup.com/ckeditor/ckfinder/userfiles/files/736754844.pdfIn PDF document text
  • http://autosoftware.company/autoresponders_images/files/76387311376.pdfIn PDF document text
  • http://medianet2000.net/amm_prod/image_news_popup/file/6401794964.pdfIn PDF document text
  • http://soles2walk.com/data/file/takid.pdfIn PDF document text
  • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135526c2d217---saneruwigob.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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