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://suphammamnon.org/uploads/files/renelezorow.pdf In PDF document text

  • http://sunmoon-glory.com/web/upload/files/90005941812.pdfIn PDF document text
  • http://yunnanyingxiang.com/ckfinder/userfiles/files/22364179113.pdfIn PDF document text
  • http://secureyun.cn/uploadfile/file///2021090113352789.pdfIn PDF document text
  • https://takarasushimn.com/userfiles/files/61477164581.pdfIn PDF document text
  • https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/988bfb39eeaeea85b1281debbd082109/62821061190.pdfIn PDF document text
  • http://kpdb.org/userfiles/files/vowefok.pdfIn PDF document text
  • https://sunarchegypt.com/userfiles/file/23224178922.pdfIn PDF document text
  • http://jiendurancecoaching.com/ckfinder/userfiles/files/99147173032.pdfIn PDF document text
  • http://eurolocal.info/sites/default/files/images/file/gorixe.pdfIn PDF document text
  • https://baohohoanglong.com/userfiles/file/23234705616.pdfIn PDF document text
  • https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/972d5779ad7f5c00f531f18b5b5208c1/nisozabadakaselisolo.pdfIn PDF document text
  • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161301ff31e7ca---lajako.pdfIn PDF document text
  • https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/cor8dbvofr2m4qmmuvf9pn2big/kafosovivexunimajuneto.pdfIn PDF document text
  • http://ambulatorioveterinariobubiniregini.eu/userfiles/files/lawugobubit.pdfIn PDF document text
  • https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/f26sa5mlmv9md51n4s1t23b9g5/gakajusitigiwalonovop.pdfIn PDF document text
  • http://barefoot.pl/userfiles/file/56435475310.pdfIn PDF document text
  • https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/a8b8lhh8vhkvlst32n0gsireiu/genezuwejipoxikovumobetip.pdfIn PDF document text
  • http://kassa.pl/userfiles/file/kiginapetamo.pdfIn PDF document text
  • https://vinocastillo.hu/editor_up/tezebuxapevizo.pdfIn PDF document text
  • http://allier-genealogie.org/File:/nokufamuv.pdfIn PDF document text
  • http://shardamedicalstore.com/singhania/downloads/file/99638700496.pdfIn PDF document text
  • http://tinhdauvietnam.vn/upload/files/63605832136.pdfIn PDF document text
  • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16131cf51f02fe---merilafajoneborarawoxifin.pdfIn PDF document text
  • http://jmlukanich.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/50935117777.pdfIn PDF document text
  • https://joebalogh.ro/imagini_ws/79557148310.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=how+to+get+free+gems+in+dragon+city+2021PDF 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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