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.
• 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.
• 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://laborke.ru/uplcv?utm_term=pacemaker+ai+dj+app+android PDF link annotation

  • http://shortguycentral.com/ck_uploads/files/pivelezaxavi.pdfIn PDF document text
  • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/161324162e4ec1---89900484766.pdfIn PDF document text
  • http://on-video.com/movies/movie_data/file/50812289913.pdfIn PDF document text
  • https://hohsingfiber.com/ufiles/files/dowiwase.pdfIn PDF document text
  • http://humansharehouse.com/userData/board/file/15593365430.pdfIn PDF document text
  • http://tcihk.com/userfiles/xedumasowiwaxisavefam.pdfIn PDF document text
  • http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/161384c3054159---bogenupejuvereti.pdfIn PDF document text
  • https://svltv.in/userfiles/files/bezefozatirimoxemefoti.pdfIn PDF document text
  • https://elitstroycraft.ru/source/file/navibozotawisoromozug.pdfIn PDF document text
  • http://akkoryazilim.com/userfiles/file/58523593491.pdfIn PDF document text
  • https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161437ade9eaf7---54846890278.pdfIn PDF document text
  • https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/161308140440fc---93012892022.pdfIn PDF document text
  • https://steammining.com/userfiles/file/rutateg.pdfIn PDF document text
  • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/e0d995195df255697ea87a82e9b1484a/82853577094.pdfIn PDF document text
  • http://kleinschaden-expert.com/userfiles/file/24837218116.pdfIn PDF document text
  • http://sun-marche.com/app/webroot/js/ckfinder/userfiles/files/38749951250.pdfIn PDF document text
  • http://cnzhongkui.com/fckeditor/editor/filemanager/connectors/php/uploads/file/022310385683.pdfIn PDF document text
  • https://aneri12.cz/res/file/47911805352.pdfIn PDF document text
  • http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/16130fbd93c5f5---lobefatuwirojuwoki.pdfIn PDF document text
  • http://selidbe-beograd.info/files/devipidagexetek.pdfIn PDF document text
  • http://duythuc-bearing.vn/uploads/userfiles/file/24700412407.pdfIn PDF document text
  • https://vatlieutaphu.com/upload/files/mirilobikexorokerav.pdfIn PDF document text
  • https://btcauction.vn/hinhanh/file/nuseputanivupedapexa.pdfIn PDF document text
  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/wuboxabovevuxit.pdfIn PDF document text
  • http://simsvizag.com/contentimages/file/71884439109.pdfIn PDF document text
  • http://rileyillustration.com/images/agency/files/tuwid.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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