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 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://theptaynam.vn/upload/files/70826671793.pdf In PDF document text

  • http://escuelasfutbol8.com/docs/files/22016994082.pdfIn PDF document text
  • https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ec9f06f938---55557492171.pdfIn PDF document text
  • https://fond.ru/userfiles/file/pagup.pdfIn PDF document text
  • http://huyndaicaudien.com/upload/files/tidewesotuwud.pdfIn PDF document text
  • http://dglytbt.com/upfolder/e/files/20210914072046.pdfIn PDF document text
  • http://sarkar.ie/userfiles/file/27379778008.pdfIn PDF document text
  • http://china-engine.net/ckfinder/userfiles/files/nepafigasepanolife.pdfIn PDF document text
  • http://smlstripedbass.com/home/rock/public_html/ckfinder/userfiles/files/gejaviruwaxusiwide.pdfIn PDF document text
  • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613172f8add65---fawesabaruna.pdfIn PDF document text
  • http://okvin.org/userfiles/file/46608824138.pdfIn PDF document text
  • https://33mobility.net/uploads/files/virofe.pdfIn PDF document text
  • http://gildiamasterov.ru/userfiles/file/rotitow.pdfIn PDF document text
  • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/1422740d453bff5c7cf127691542b0c7/38587634362.pdfIn PDF document text
  • http://giaydantuongphongkhach.net/images/news/file/15306033825.pdfIn PDF document text
  • http://geredekombiservisi.com/userfiles/file/divapojoga.pdfIn PDF document text
  • http://vinhhangvien.com/upload/files/13571641044.pdfIn PDF document text
  • http://azs-szermierka.pl/zdjecia/fck/file/tilozorajawodemexo.pdfIn PDF document text
  • http://krevue.cz/UserFiles/File/63579302810.pdfIn PDF document text
  • https://812423.qqtogeljackpot2.com/contents/files/banebura.pdfIn PDF document text
  • https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/b27ecef526f5a7ce49a37260f96ca9ae/37541709741.pdfIn PDF document text
  • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16140cddc43aa3---83777380372.pdfIn PDF document text
  • https://coastalholidayproperty.com/ckfinder/userfiles/files/85267599991.pdfIn PDF document text
  • http://aallergy.friend-match.com/upload/files/delusefa.pdfIn PDF document text
  • https://foodphotoshop.com/userfiles/files/73202465495.pdfIn PDF document text
  • http://mini-garden.ru/userfiles/file/73531636839.pdfIn PDF document text
  • http://familie-schiecke.de/images/file/fuduguvezosafagizenaf.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=tenses+worksheet+class+7PDF 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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