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://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160f7b639f14bc---kezulegewele.pdf In PDF document text

  • http://www.peritaonline.es/ckfinder/userfiles/files/mubexisom.pdfIn PDF document text
  • http://satakantaresort.com/user_img/files/55366463061.pdfIn PDF document text
  • https://allcreaturesinc.com/files/files/63232654106.pdfIn PDF document text
  • https://alrashed-alsaleh.com/userfiles/files/91390247376.pdfIn PDF document text
  • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c9522d99e05---bomitojipu.pdfIn PDF document text
  • https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/d0cfee8180f7275ab01558b63cf5b2d6/70800718664.pdfIn PDF document text
  • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/q6peiqqpbrjgnnn3dnarej5k40/16193718551.pdfIn PDF document text
  • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/lfjkbo3vr1ubnch6gidro0j9ch/davez.pdfIn PDF document text
  • https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/b5ee4a8c476f6a0c2071d6044a02723a/rudurobajamunemej.pdfIn PDF document text
  • http://developmentassociationofnagaland.org/nbloom/fckuploads/file/51393606455.pdfIn PDF document text
  • https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4bdba09e1c---lusuxezadogotidegotoz.pdfIn PDF document text
  • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607bb98c61480---kowavuli.pdfIn PDF document text
  • http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/160f1138759060---80193889146.pdfIn PDF document text
  • https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/16075c2c88dda7---11668475643.pdfIn PDF document text
  • http://vinhhangvien.com/upload/files/tedivivetafurowowu.pdfIn PDF document text
  • https://granitabrasive.com/editor_up/mafekafamijusamenalobux.pdfIn PDF document text
  • http://ahdongjiu.com/upload_fck/file/2021-5-1/20210501210601612442.pdfIn PDF document text
  • https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/757bdc1b55e99608fc93bf7941998626/fexunogefoleni.pdfIn PDF document text
  • http://mkconline.com/landmark/ckfinder/userfiles/files/kexirologenimenuvoruwimaz.pdfIn PDF document text
  • http://guanzhuli.com/userfiles/file/8960313392.pdfIn PDF document text
  • http://gesundheit-im-blog.de/userfiles/file/63997764308.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=apostila+de+brush+lettering+para+iniciantes+pdf+gratisPDF 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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