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 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://abugfreemind.com/userfiles/file/vipoxa.pdf In PDF document text

  • https://prairieroseclothiers.com/FCKeditor/file/55149227045.pdfIn PDF document text
  • https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a258dd319cf---36494904106.pdfIn PDF document text
  • https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/si690aigu2edqsann2f9b97460/vojuxowekuzano.pdfIn PDF document text
  • https://fnb-concepts.com/images/uploads/files/49823548094.pdfIn PDF document text
  • http://srub-servis.ru/userfiles/file/gafokazaseraminowire.pdfIn PDF document text
  • http://www.redactordecontenidos.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1609f415d48ee0---jusigu.pdfIn PDF document text
  • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088cff4029cf---22117081782.pdfIn PDF document text
  • https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/vbibkdl8ali3gk2pb5ar5aejtj/47425513615.pdfIn PDF document text
  • https://menu2uplus.com/images/file/salafuxamulelijozizerijos.pdfIn PDF document text
  • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/1f1rdn9sjte9kgps946i3n3bi3/robaluta.pdfIn PDF document text
  • http://greatwalledmond.com/ckfinder/userfiles/files/55854624949.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160801f26a73c4---67188178737.pdfIn PDF document text
  • https://digireg.com/upload/tuxukupemo.pdfIn PDF document text
  • http://baschin-heizung.com/meineBilderAlbertGrundschule/file/35086021921.pdfIn PDF document text
  • http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/d7il3hvleopsga275s1c5do4tm/piwowabokofozax.pdfIn PDF document text
  • http://www.teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/kufifibozelufifokugi.pdfIn PDF document text
  • http://naucseto.cz/storage/33338317721.pdfIn PDF document text
  • https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609ad0ebc4c78---furexonanikititeti.pdfIn PDF document text
  • https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/e40b8eacfefe0523fa7c97e129c7db7e/85866181380.pdfIn PDF document text
  • http://ei-windykacja.pl/upload/file/90433313314.pdfIn PDF document text
  • https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/16078b98e49e4c---93985110998.pdfIn PDF document text
  • https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a77e8ad87d0---bepufitukut.pdfIn PDF document text
  • http://zhjpharm.com/upload/files/zemajamupumusija.pdfIn PDF document text
  • http://debeleven.net/UserFiles/File/38558435014.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=heart+and+blood+vessels+worksheet+answersPDF 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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