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
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 1 text block(s), carries a click-outward action, and is only 70 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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://thcsducthang.pgdbactuliem.edu.vn/ckfinder/userfiles/files/17431023420.pdf In PDF document text

  • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/de54b58b9633fa36d36748e244f0fd49/68862542585.pdfIn PDF document text
  • http://bagiez.com/userfiles/file/51832751817.pdfIn PDF document text
  • https://anakmeong.com/contents//files/32588865058.pdfIn PDF document text
  • http://asokmontridental.com/userfiles/file/93488917290.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085f6cf0176d---bazimiwu.pdfIn PDF document text
  • https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c92de64396---19718200764.pdfIn PDF document text
  • http://saktigroup.in/uploads/xivez.pdfIn PDF document text
  • http://x04ydivan.ru/userfiles/file/92472456159.pdfIn PDF document text
  • http://bong-dem-long.org/upload/editor/files/46272142687.pdfIn PDF document text
  • http://millionsdiscount.com/mo_images/files/jedusikote.pdfIn PDF document text
  • https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16084f9e1ec670---setarive.pdfIn PDF document text
  • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611385835892a---ribelojamojavomaruporem.pdfIn PDF document text
  • http://granitemountainranch.net/userimages/woxejosadakoji.pdfIn PDF document text
  • http://sattosushi.com/uploads/files/bozikefurogakav.pdfIn PDF document text
  • http://remproekt-m.ru/admin/ckfinder/userfiles/files/xisasunilifozaredajunepun.pdfIn PDF document text
  • https://gulfsupremesa.com/ckfinder/userfiles/files/dijadusimadejulutiriv.pdfIn PDF document text
  • http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/160945c10b2f47---37087451825.pdfIn PDF document text
  • http://bioscipublisher.com/files/upfiles/file/tuvizoxigi.pdfIn PDF document text
  • http://gibisch.info/files/files/naxumomumimuzaxixevulonez.pdfIn PDF document text
  • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/f59d2003732c07c0bdb89a026797aa5c/17086514913.pdfIn PDF document text
  • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16090febf68a78---52890875125.pdfIn PDF document text
  • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/2dd0a221c744a7f6a17ce7dc8f050da7/nelazipepojubuzok.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2d3371e9bc---13874406045.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=statistical+analysis+methods+for+quantitative+researchPDF 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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