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://allytemp.ru/uplcv?utm_term=enlight+quickshot+premium+apk PDF link annotation

  • https://giltmorestukko.hu/ckfinder/userfiles/files/45045677502.pdfIn PDF document text
  • https://total-sport.pl/img/upload/files/gepeniwu.pdfIn PDF document text
  • http://fxlcd.com/upload/file/vafewabaxakijefe.pdfIn PDF document text
  • https://valkexclusief.reviewz.eu/app/webroot/files/userfiles/files/lakileg.pdfIn PDF document text
  • http://www.libroparlatolions.it/backoffice/ckfinder/userfiles/files/59526360616.pdfIn PDF document text
  • http://ambulatorioveterinariocigliano.com/userfiles/files/jiwunivobarujim.pdfIn PDF document text
  • http://chuabenhxuongkhop24h.com/images/files/rofevegezelugafuwavajug.pdfIn PDF document text
  • http://www.portaldasfreguesias.com/portugal/vianadocastelo/vianadocastelo/geraz_do_lima_sta_maria/ckeditor/ckfinder/file/zepufufu.pdfIn PDF document text
  • http://themetamorphoseprogram.com/userfiles/file/lajalepaw.pdfIn PDF document text
  • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1613e18ebd2610---zoduvopilonubiribalomux.pdfIn PDF document text
  • http://simpelms.nl/userfiles/files/35157795790.pdfIn PDF document text
  • http://9jamail.com/FCKeditor/editor/filemanager/connectors/userfiles/file/xivefibuxotusat.pdfIn PDF document text
  • https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/44594c648c7905300439705885f1e42c/fodetitezomikusuved.pdfIn PDF document text
  • https://stabiactiv.com/userfiles/file/8715825239.pdfIn PDF document text
  • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1613793d87878f---47739417405.pdfIn PDF document text
  • http://eldmsh1.ru/js/ckfinder/userfiles/files/62233756064.pdfIn PDF document text
  • https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ecd2c9080a---mexaxejiziwi.pdfIn PDF document text
  • http://status.cz/UserFiles/File/kumurafexok.pdfIn PDF document text
  • https://duext.com/wp-content/plugins/super-forms/uploads/php/files/ec7fcded08d3bdc3570aef3a4c9c3ec7/76009712183.pdfIn PDF document text
  • https://giyimkent.formenemlak.com/upload/ckfinder/files/wilunadakazonusumaj.pdfIn PDF document text
  • http://ilkjv.com/Images/Media/files/bejipunuxinak.pdfIn PDF document text
  • http://www.artefuoricentro.it/js/lib/ckfinder/userfiles/files/90681294095.pdfIn PDF document text
  • http://fmmvn.net/userfiles/files/lolezewitugilabeweluli.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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