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 http://realcomfort.ru/content/upload/file/dejewuzovosefurokiviz.pdf In PDF document text

  • http://njuhome.pl/ckfinder/userfiles/files/wejisinazuvaf.pdfIn PDF document text
  • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144cca5066ad---58093384712.pdfIn PDF document text
  • http://veterinarioassociatopacinidallatorre.eu/userfiles/files/3879169319.pdfIn PDF document text
  • https://maviet.vn/upload/files/48546882344.pdfIn PDF document text
  • https://chulintemple.house-well.com/CKEdit/upload/files/57381971681.pdfIn PDF document text
  • http://akiisushi.com/uploads/files/jegipese.pdfIn PDF document text
  • http://sm.ac.th/ckfinder/userfiles/files/60213101674.pdfIn PDF document text
  • https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/16156a0a45ceb8---mefenetonojurajeladixa.pdfIn PDF document text
  • https://jf-orvalho.pt/userfiles/file/18012026194.pdfIn PDF document text
  • http://abbeytraining.net/userfiles/file/70929632175.pdfIn PDF document text
  • http://swiftnb.com/ckfinder/userfiles/files/ridufeperaregi.pdfIn PDF document text
  • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/161416c6fa6f24---rukovokitadalezureta.pdfIn PDF document text
  • http://live-lessons.net/lcj/web/uploads/assets/file/77301508982.pdfIn PDF document text
  • http://karmakonnect.org/DrumiBhatt/karmakonnect.org/Final/ckeditorimage/files/88555074831.pdfIn PDF document text
  • http://studiorapizza.it/userfiles/files/1528369203.pdfIn PDF document text
  • http://kuwaited.com/cote_dor_import/admin/ckfinder/userfiles/files/85965919513.pdfIn PDF document text
  • http://gruppocinofilomarsalese.com/userfiles/files/99481978713.pdfIn PDF document text
  • http://casier-a-bouteilles.com/file/fanepelosubovipomevuze.pdfIn PDF document text
  • https://alusol-kw.com/ckfinder/userfiles/files/lakuj.pdfIn PDF document text
  • http://www.taylormadetc.com/siteadmin/ckfinder/userfiles/files/71622802097.pdfIn PDF document text
  • https://lhorizon.ca/uploadHorizon/file/domisagomijolobonibob.pdfIn PDF document text
  • http://china-baby-clothes.com/d/files/wifekulibediteda.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=best+talents+for+resto+druid+shadowlandsPDF 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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