Malicious PDF — malware analysis report

Heuristics 8

• 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 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.
• 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://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/160c8518814bd8---sezafilaxezo.pdf In PDF document text

  • https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/4c09011bd314611a4e243ab0d05c6a14/bawulajawepegur.pdfIn PDF document text
  • https://transport-vehicules.fr/userfiles/file/gugilurufodezomonutaxela.pdfIn PDF document text
  • http://straps.by/ckfinder/userfiles/files/61144873751.pdfIn PDF document text
  • http://www.onlinenieuwsbriefversturen.nl/gebruikers/afbeeldingen/lififovijap.pdfIn PDF document text
  • http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c79bf576241---labajofub.pdfIn PDF document text
  • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca02dd7978---wijibosepasebuwirizuve.pdfIn PDF document text
  • http://pakianco.ir/data/image/uploads/news/files/safidimapozejozaroxukej.pdfIn PDF document text
  • https://parokisantolukas.org/Uploads/userfiles/files/pizowesaxolidezis.pdfIn PDF document text
  • http://thaihotelsale.com/FileData/ckfinder/files/20210815_5CB9BB9D85E9D64D.pdfIn PDF document text
  • https://dusunceokulu.net/resimler/files/tiwunatogev.pdfIn PDF document text
  • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16074d51c28293---xigotinegarufirusirudi.pdfIn PDF document text
  • http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1606f13ed835ca---welekase.pdfIn PDF document text
  • https://silatur.com/js/ckfinder/userfiles/files/finiwifixofatorotosus.pdfIn PDF document text
  • http://opuspoint.com/ckfinder/userfiles/files/67331423162.pdfIn PDF document text
  • http://aczelzalog.hu/tmp/gafojopaxorafifesevufeliv.pdfIn PDF document text
  • http://acupunctuuryao.nl/ckfinder/userfiles/files/58443495031.pdfIn PDF document text
  • http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609afae367e9c---jefozabobel.pdfIn PDF document text
  • https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/250d5077a9f263cbe7da65162090694e/98499493920.pdfIn PDF document text
  • https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/pc1ajae29g24flq0vjnr5qk9o8/napurutidudivefiwonilari.pdfIn PDF document text
  • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/c793r4dc62tek4u060iitgfkdg/bazegigisoxazin.pdfIn PDF document text
  • http://wami.cc/data/files/wavowavixesunoden.pdfIn PDF document text
  • https://pilot-nav.com/ckfinder/userfiles/files/dagegoruxobisegemexifilo.pdfIn PDF document text
  • http://www.icf-plant.com/files/file/59361018170.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=cursive+handwriting+worksheets+for+beginnersPDF 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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