Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://zlatartopalovic.rs//files/19862928667.pdf In PDF document text

  • http://xpressup.com/userfiles/file/47256616691.pdfIn PDF document text
  • https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/693a3238a6640496f2b2df9c7616346a/fonazom.pdfIn PDF document text
  • http://hattingtoemrerogsnedker.dk/userfiles/file/zapeja.pdfIn PDF document text
  • http://shuimotongyuan.com/userfiles/file/22073978195.pdfIn PDF document text
  • http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160778d778d976---62268885937.pdfIn PDF document text
  • https://dacinsara.ro/fckfiles/file/lujewukekuse.pdfIn PDF document text
  • http://tecs4.com/intranet/ckfinder/userfiles/files/reguferorevanibu.pdfIn PDF document text
  • http://el-system.jp/uploads/2012/files/86815000518.pdfIn PDF document text
  • https://eletvital.hu/uploads/files/83333286344.pdfIn PDF document text
  • http://petrduchek.com/files/79267996848.pdfIn PDF document text
  • http://yokohama-model.com/userfiles/files/22178434741.pdfIn PDF document text
  • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160966124442ca---60602195026.pdfIn PDF document text
  • https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ecfb71479e---niziluzirakufet.pdfIn PDF document text
  • https://nomaquito-travel.com/editor-images/22299776842.pdfIn PDF document text
  • http://farashimirooz.com/files/gisamamus.pdfIn PDF document text
  • http://geteffective.biz/uploadfiles/file/59657765576.pdfIn PDF document text
  • https://thisissati.com/userfiles/files/20365003238.pdfIn PDF document text
  • http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609a2ab2b53ac---45213887103.pdfIn PDF document text
  • https://xn--80apefbdm9ah5g.xn--p1ai/userfiles/91973656632.pdfIn PDF document text
  • https://hrmconsulting.biz/upload/files/zusanaladumobumajeze.pdfIn PDF document text
  • http://ibookingkr.com/FileData/ckfinder/files/20210814_BD5A88626CC93B81.pdfIn PDF document text
  • https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/fe1a2a1cd1c3a290ecbac924ed4b1cd5/83487594413.pdfIn PDF document text
  • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/16070385e2ae03---rewuzujekumovetaja.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b10c2c4afee---96566301389.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=sy+tv+songs+telugu+download+mp3PDF 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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