Malicious PDF — malware analysis report

Heuristics 7

• 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://cuacuontoanthang.com/media/file/10706257966.pdf In PDF document text

  • http://xn--90aoaidn.xn--p1ai/ckfinder/userfiles/files/sofudogosibabazefimo.pdfIn PDF document text
  • http://minhledtran.com/luutru/files/44726683061.pdfIn PDF document text
  • http://castel.lu/userfiles/files/zibufeguxef.pdfIn PDF document text
  • https://perfecthospitals.org/ckfinder/userfiles/files/2829427094.pdfIn PDF document text
  • http://cuadepthanglong.com/images/ckeditor/files/takegatijigepazimadad.pdfIn PDF document text
  • https://portoggitter.no/content/files/userfiles/file///69562173897.pdfIn PDF document text
  • http://ahkkpcm.org/userfiles/janup.pdfIn PDF document text
  • http://xn--80aguejfegacgj0ad.xn--p1ai/pict/file/powulixawegowosutixuzugi.pdfIn PDF document text
  • http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140e93407a69---wizoramubofetarifa.pdfIn PDF document text
  • http://bc-arman.kz/ckfinder/userfiles/files/bamevu.pdfIn PDF document text
  • http://darangyi.com/userData/board/file/suxovewilifadujaki.pdfIn PDF document text
  • https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141e3e41af73---27005524045.pdfIn PDF document text
  • http://0048.pl/48files/file/64897178875.pdfIn PDF document text
  • https://thegioidongphuc.net/ckfinder/userfiles/files/xegesipifokidovogo.pdfIn PDF document text
  • http://assotechne.eu/userfiles/files/11631651030.pdfIn PDF document text
  • http://naitikfashions.com/ckfinder/userfiles/files/zagalelejakap.pdfIn PDF document text
  • http://magiepourenfants.com/images/mediamanager/file/53252789174.pdfIn PDF document text
  • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fe13e7d25e---bidetix.pdfIn PDF document text
  • http://kbautotech.com/board/datafiles/imagefile/71713660206.pdfIn PDF document text
  • http://bursaceyizgelinlik.com/images_upload/files/mifuwejitizejo.pdfIn PDF document text
  • https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614151f6c3b7d---66166530985.pdfIn PDF document text
  • http://skogsformedling.se/bilder_umeny/File/84923555114.pdfIn PDF document text
  • http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/161326249131d5---8851665016.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=vijay+superum+pournamiyum+full+movie+watch+online+123moviesPDF 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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