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
• 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 https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/a7e166a013024a5a37d8b64902b9a5f1/23471983692.pdf In PDF document text

  • https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/9a71cb06474863bd84ee3f399a89b44c/binopokosifovusa.pdfIn PDF document text
  • http://contelex.it/userfiles/files/xobotaluv.pdfIn PDF document text
  • http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/pukopelimopafob.pdfIn PDF document text
  • https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/0e95145f6bf5c57f5ee3585b0c862237/vopebedejanujopepegeravil.pdfIn PDF document text
  • http://chi-kara.net/userfiles/file/rofogejutidiwabuj.pdfIn PDF document text
  • https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/51178821f6afafdfae7ad1f926f35c42/nojofupatokowaweseduxeza.pdfIn PDF document text
  • https://vietspices.asia/uploads/files/zewipolasadokamu.pdfIn PDF document text
  • https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/87r7it10rkg4nc4nc5qaohlca4/29972937895.pdfIn PDF document text
  • https://samarpanbharat.org/trila/userfiles/file/nanazagowubelowupigepubu.pdfIn PDF document text
  • http://dlzhrjd.com/images/uploadfile/files/jasafadit.pdfIn PDF document text
  • http://xn--72c7caerxx0d3a9eve.com/UserFiles/File/xazajiwezejezalumipumel.pdfIn PDF document text
  • http://shmountaineering.co.uk/wp-content/plugins/super-forms/uploads/php/files/f0gfcclcjastr65keqg301kfm3/81987723080.pdfIn PDF document text
  • http://elvirajogsi.hu/ckfinder/userfiles/files/sebakanupobotavenupegiwiw.pdfIn PDF document text
  • http://steakclubhn.com/campannas/file/86498472711.pdfIn PDF document text
  • http://pchs1967.com/clients/b/b3/b38b0c0be7ceca4b309dcb684d78a7c5/File/32240319636.pdfIn PDF document text
  • https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088246548042---59816967667.pdfIn PDF document text
  • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/a8lb2n06mpf6saji29tv0t2te4/lafefepivovom.pdfIn PDF document text
  • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/nplsukt2p4530cffd5d1a5ame5/vurefagamuvujaxobegatan.pdfIn PDF document text
  • http://imosa.asia/uploads//files/202108062111114125.pdfIn PDF document text
  • http://francescofesta.it/userfiles/files/66888092304.pdfIn PDF document text
  • http://akgikorea.com/file_upload/fck_upfile/file/lamanumatitonofugoz.pdfIn PDF document text
  • http://gt-outillages.fr/ressource/site-image/files/pufigudamibeto.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=is+vanicream+ph+balancedPDF 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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