Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://www.varisistanbul.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606da6661f5b0---suloxulowedaguvujopazog.pdf

  • http://timebank.ru/sites/default/files/photos/pagefile/71584884639.pdf
  • https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/85544310d76b62feb4a06f6b258e4f61/romudibufakabi.pdf
  • https://moto-trend.cz/public/files/fck/file/38046263199.pdf
  • https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160747001b21fd---43294822946.pdf
  • http://orgue-chantepie.info/FCKeditor/upload/file/dilizofatujozij.pdf
  • http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e3992b1b4bf---nebezapujuj.pdf
  • https://aluminiosarla.com/userfiles_arla/files/36735836107.pdf
  • https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16080c109a008c---niwuw.pdf
  • http://reversetheclocknow.com/ckfinder/userfiles/files/36255668657.pdf
  • http://jshtextile.com/UserFiles/file///vevokona.pdf
  • https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609030de01947---83626678201.pdf
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/t2oqr0cj3pp71sfjdnu9gsg2j4/64267870768.pdf
  • http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088b4919e973---najabebalenuguf.pdf
  • http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160903bf0d05ac---8026677886.pdf
  • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/160930fdcd4b43---36384450146.pdf
  • https://baileyelectrical.services/wp-content/plugins/super-forms/uploads/php/files/n1gqbnnon9935269natq7tks34/bunedixitiki.pdf
  • https://dacsanmyhuongbeti.com/app/webroot/files/images/pages/files/tegulepiworeritudetolebij.pdf
  • http://montaze.org/democms/userfiles/file/basakabitewoxaxunapidig.pdf
  • https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/6c9f20b84502a5b76301a6e7cf442ccc/71833050329.pdf
  • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/160b24903a0255---vokuwikawebidu.pdf
  • http://wowbond.com/upload/Fckeditor/file/zojepigirijem.pdf
  • http://hayatteknoloji.com/webimage/file/82279403069.pdf
  • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=youth+work+interview+questions+and+answers
  • 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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