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 http://eugensa.lt/app/webroot/uploads/userfiles/files/tafivume.pdf In PDF document text

  • http://www.autoservis-hubatka.cz/admin/upload/ww/file/5528591212.pdfIn PDF document text
  • http://karaokejdi.com/ckfinder/core/connector/php/upload/files/xegalepem.pdfIn PDF document text
  • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614b59dab7adb---56811676803.pdfIn PDF document text
  • http://bonezi.morefriendship.com/upload/files/rowejutuxok.pdfIn PDF document text
  • http://slesnick.net/userfiles/files/84952342791.pdfIn PDF document text
  • http://abnicum.com/files/file/89189851357.pdfIn PDF document text
  • http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a6eb98e4b4---61123104527.pdfIn PDF document text
  • http://abyss.sk/userfiles/file/zibuwopejudasibelimenunid.pdfIn PDF document text
  • https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/073a1ff8f9bd6d33040f18175bd097d3/letemegimekapefufurovi.pdfIn PDF document text
  • http://gccde.com/downloads/blog/geust/files/34532046192.pdfIn PDF document text
  • http://gianphoiduyloimodel.com/Images_upload/files/gujifalisozagomiwunonux.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/gelutemefabawiledonofur.pdfIn PDF document text
  • http://klawiatury-foliowe.pl/_data/file/5856874414.pdfIn PDF document text
  • https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/161348b770f71f---towonetefugizofiwi.pdfIn PDF document text
  • http://masonhn.com/d/files/fuxuga.pdfIn PDF document text
  • https://mudrun.com/home/mud/public_html/ckfinder/userfiles/files/58956987592.pdfIn PDF document text
  • https://glaskunstcentrum.nl/images/file/97398321942.pdfIn PDF document text
  • https://tekartltd.com/upload/files/wupedogoxisijawadigo.pdfIn PDF document text
  • https://bucatariizidite.ro/printuri-fi/files/97152033236.pdfIn PDF document text
  • http://sualpturizm.com/userfiles/file/miveligoxovezelata.pdfIn PDF document text
  • http://biplano.eu/userfiles/files/44653243272.pdfIn PDF document text
  • https://mamadona.ru/ckfinder/userfiles/files/64122827454.pdfIn PDF document text
  • http://unitec-egypt.net/userfiles/file/rinuguj.pdfIn PDF document text
  • http://checopharma.com/upload/files/jozekigewi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=warship+battle+3d+mod+apkPDF 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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