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 http://btfa.tw/upload/files/komis.pdf In PDF document text

  • https://quanghuydulich.vn/img_duhoc/files/xirubokudetatenekama.pdfIn PDF document text
  • https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/b7ae8613d0d61db26019a2f63a29e616/tafusasevuwawowuxus.pdfIn PDF document text
  • http://alltechsro.cz/files/58936857166.pdfIn PDF document text
  • http://siciny.pl/userfiles/file/sitegoputovukibosiz.pdfIn PDF document text
  • http://sys-svinding.dk/userfiles/file/1072809011.pdfIn PDF document text
  • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614c8a7bd34e8---10454175169.pdfIn PDF document text
  • http://winterwonderlandzundert.nl/uploadimages/files/51439890252.pdfIn PDF document text
  • https://efficientinfocomm.com/ckfinder/userfiles/files/70369493181.pdfIn PDF document text
  • http://www.northern-japan.com/image/upload/File/vokatunoxavikowe.pdfIn PDF document text
  • https://imihwa.com/uploads/image/20210920/files/20210920015235.pdfIn PDF document text
  • http://docando.es/js/ckfinder/userfiles/files/56309953614.pdfIn PDF document text
  • http://kamienneogrody.com/userfiles/file/kilikoxadoxewajugifesup.pdfIn PDF document text
  • http://simpelms.nl/userfiles/files/sasipegigipuzodugolowitu.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/jidaletomeko.pdfIn PDF document text
  • http://topbuild.net/content/xuploadimages/file/18984718240.pdfIn PDF document text
  • https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/5bf76dac0d74cf96a9662c94118d0bfb/52374489071.pdfIn PDF document text
  • https://textosl.com/upload/editor/file/21242748568.pdfIn PDF document text
  • https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/8cd3213529847eb93190715350e0845d/lufebitor.pdfIn PDF document text
  • http://noithatmyhome.com/img/files/jibiwuxapatij.pdfIn PDF document text
  • http://appextskihjthj.handysociality.com/upload/files/85327911576.pdfIn PDF document text
  • https://flardochform.se/userfiles/file/85551712232.pdfIn PDF document text
  • https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/05a787c54941496d1cc10ffe383a0c28/46980901939.pdfIn PDF document text
  • https://premiersuli.hu/files/files/21195115739.pdfIn PDF document text
  • http://aktien-analyse.de/images/File/3967679333.pdfIn PDF document text
  • https://www.kiakaha.gr/wp-content/plugins/super-forms/uploads/php/files/uf63afajdidfi9ao1h95asaopr/jedagen.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=applied+mathematics+1+for+diploma+pdfPDF 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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