Malicious PDF — malware analysis report

Heuristics 9

• 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 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.
• Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
  Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
• 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.
• 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://www.thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/67735742580.pdf In PDF document text

  • https://trungtammatnamviet.vn/upload/files/ziwuwulebuvebono.pdfIn PDF document text
  • https://mimpishio1.com/contents//files/75445665506.pdfIn PDF document text
  • https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/uegs0juak04mtk0i092fv1np8i/55910832636.pdfIn PDF document text
  • http://instant-image.net/UserFiles/Site/File/volimopif.pdfIn PDF document text
  • http://marketherballize.com/ckfinder/userfiles/files/92116403507.pdfIn PDF document text
  • https://bestcoloringpages.com/userfiles/file/suzamaregatiweramijuderi.pdfIn PDF document text
  • https://thetitangroup.ca/wp-content/plugins/super-forms/uploads/php/files/6ca1c67cf73ecb2fe3783d48501a3b5f/23937018448.pdfIn PDF document text
  • http://shophouse.info/images/files/5482544053.pdfIn PDF document text
  • https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/e6b83ff393ec0274b900013b39d91ca0/8699176512.pdfIn PDF document text
  • http://northmarking.com/userfiles/files/riwaguxameta.pdfIn PDF document text
  • http://www.ekoforte.com/upload/file/79426553744.pdfIn PDF document text
  • http://ck-tct.ru/userfiles/file/69181377257.pdfIn PDF document text
  • https://childrencareandliteracysociety.org/userfiles/files/42542976668.pdfIn PDF document text
  • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/tq6o8bjs11ev3n32hkcuj7l0k4/vuwosev.pdfIn PDF document text
  • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16112fc505457c---susezoroze.pdfIn PDF document text
  • https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/849842469571a60b0b2194d734fcc275/kijexowiseke.pdfIn PDF document text
  • http://kennycojewelry.com/userfiles/files/202107/1625536032.pdfIn PDF document text
  • https://promise-land.com/upload/file/surowotirovogabulekese.pdfIn PDF document text
  • https://amthanhanhsangchinhhang.vn/upload/files/fuliwetodilidufawuwa.pdfIn PDF document text
  • https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/16114d0f21a4f1---mejapenogofidisopoweg.pdfIn PDF document text
  • https://vgi-vn.vn/app/webroot/img/files/puratedigubaxapevubor.pdfIn PDF document text
  • http://wisdomtours.net/upload/file/21335904963.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=charter+of+medina+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://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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