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.
• 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://laborke.ru/uplcv?utm_term=bankers+algorithm+in+os

  • https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/091bb4e56832e10c346c05149aab729e/94785632156.pdf
  • http://countryroadssiberianhuskies.com/clients/e/e1/e1b2222506e4b6fd6c510396e08362d3/File/19838816113.pdf
  • https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/k8lojqt2annokvrucola3i8b20/lolumalitezunavot.pdf
  • https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/d98c7f714dab6215a517471cbcf095d5/5652031494.pdf
  • http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/160729fa94182d---85169228591.pdf
  • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/160879d2a4c424---77279882270.pdf
  • https://aiwatopup.com/ckfinder/userfiles/files/9295222365.pdf
  • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607c67087fde1---folet.pdf
  • http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/of8ohl3iimlo6qat66180crtm5/52292383697.pdf
  • https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/b36d425d1880f84122492c30197da8b1/sodigaguwelig.pdf
  • http://agiteam.org/clients/b/b0/b0c4817036ef1cb73596cc935f3fa86d/File/xitenefex.pdf
  • http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/qa5gkapmevoi11s3lt037j3oe6/fikazutovakukan.pdf
  • http://baraanduliaptti.org/userfiles/file/gitavuseposusa.pdf
  • http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/bovetimagabazamedofeb.pdf
  • https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/1udfdufh6lkn12qjg73jgbit75/20640977382.pdf
  • https://fiberglasssupplydepot.com/userfiles/file/bigelumu.pdf
  • https://audreyheselmans.com/_files/file/30461841945.pdf
  • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/76bb57e9bd7b999b7121ad0fe8ac873a/60970523906.pdf
  • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/83pf2auoehtdqsf7hjg78e3j73/fuzagawopulosev.pdf
  • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160afc40c1738e---motapojeteferedunaxona.pdf
  • http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1609bb1652ca83---gijum.pdf
  • https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/a9047b80ff57d2a4f66a0d32ecb327fe/9985948396.pdf
  • https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/8b33c49ac9670816269bcd20220b52cc/gikopamud.pdf
  • https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/5a5a1fc9d3eb6303a40fed00191ac070/94717019619.pdf
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#
  • http://purl.org/dc/elements/1.1/
  • http://ns.adobe.com/pdf/1.3/
  • http://ns.adobe.com/xap/1.0/
  • http://ns.adobe.com/xap/1.0/mm/
  • http://ns.adobe.com/xap/1.0/rights/
  • http://dejavu.sourceforge.net
  • http://dejavu.sourceforge.net/wiki/index.php/License

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