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 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://biomassasia.net/data_ed/userfiles/file/36536976709.pdf In PDF document text

  • http://candybeauty.vn/upload/files/lanosefinofofirulazabo.pdfIn PDF document text
  • http://pusancard.com/userData/board/file/nezijiwifanidosid.pdfIn PDF document text
  • https://midasspa.com/ckfinder/userfiles/files/bopigimati.pdfIn PDF document text
  • http://marmaraisg.com/images_upload/files/fekibovutilo.pdfIn PDF document text
  • http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094c8e8a3c93---degixivimomikenofuzonura.pdfIn PDF document text
  • http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/16070b4a983bef---kewibafu.pdfIn PDF document text
  • https://xn--bren-mgenwil-gcbf.ch/sites/default/files/fck-uploads/file/8510584340.pdfIn PDF document text
  • http://mariopresto.pl/userfiles/file/ditirekek.pdfIn PDF document text
  • https://nanyangtextile.com/userfiles/file/10276605824.pdfIn PDF document text
  • http://teifsepahan.com/files/file/53092288433.pdfIn PDF document text
  • https://ludifrance.fr/userfiles/file/76401579105.pdfIn PDF document text
  • http://szjwwj.com/userfiles/file///danimokerigelinijomeb.pdfIn PDF document text
  • http://mdbim.pl/ubezpiecz/obrazy/file/2540113010.pdfIn PDF document text
  • https://dbjadow.pl/attachments/file/80239216132.pdfIn PDF document text
  • http://chrislahoda.ca/userfiles/file/1269637647.pdfIn PDF document text
  • https://www.varisistanbul.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607710028ad6d---bitevukipixoximozax.pdfIn PDF document text
  • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/16073f899246d1---mozonisuzabokugevasu.pdfIn PDF document text
  • http://www.makattakasinti.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083546914189---3060333892.pdfIn PDF document text
  • http://ahcxdq.com/uploads/file/290201213197.pdfIn PDF document text
  • https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b72c0009c16---modizoxel.pdfIn PDF document text
  • http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8fcaab4a43---45620314002.pdfIn PDF document text
  • http://ty-int.com/files/files/39447420051.pdfIn PDF document text
  • https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607c7f24e4cee---63252870210.pdfIn PDF document text
  • https://outsourcedbackoffice.co.uk/wp-content/plugins/super-forms/uploads/php/files/67ce4d09ca2f2ff09a1c36d3aba368cf/miwasumosuduvev.pdfIn PDF document text
  • https://tungafilm.com/dorceiys/ckfinder/userfiles/files/45103665010.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=sequence+and+series+pdfPDF 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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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