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 https://ketchas.ru/uplcv?utm_term=stock+to+buy+before+lifeinvader+mission PDF link annotation

  • https://fizjolech.pl/userfiles/file/54308299293.pdfIn PDF document text
  • http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/160c2723109fbf---88708868489.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ffddec3d95---tipab.pdfIn PDF document text
  • https://rockdental.co.uk/wp-content/plugins/super-forms/uploads/php/files/f75b7a8b0264cadea6f72ab9b2d2eb47/90737556762.pdfIn PDF document text
  • http://xlsferrosilicon.com/d/files/44070325168.pdfIn PDF document text
  • https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/16080125b208e9---66664637568.pdfIn PDF document text
  • http://18554080.com/userfiles/file/31634000882.pdfIn PDF document text
  • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf90b6715f6---donububifofavodexafivoge.pdfIn PDF document text
  • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160d2e6b431b4e---845006513.pdfIn PDF document text
  • http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087bdfa86e43---kaxazujev.pdfIn PDF document text
  • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/bd77407c684b2fe9c68755df38ac54bd/xelazotutiji.pdfIn PDF document text
  • http://sjhrz.com/images/upload/File/71573600383.pdfIn PDF document text
  • https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/c37415b0e28942b6442a0cfcc8ac23f2/kujobixizib.pdfIn PDF document text
  • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160cb5c7325537---sopuvezukobum.pdfIn PDF document text
  • https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c99193ddb8e---sigolojebubufanuzo.pdfIn PDF document text
  • https://haps.company/wp-content/plugins/super-forms/uploads/php/files/q0c3m4kp7vc0dekpk7ckj164p2/32431112460.pdfIn PDF document text
  • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bad3ebd497c---52146461935.pdfIn PDF document text
  • https://coastalstudio.com/images/main/file/vevolexevorerozikiwidigab.pdfIn PDF document text
  • https://tort-art.ru/userfiles/file/wijudukezokomeropanenur.pdfIn PDF document text
  • http://phenix-security.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160910e1955475---44412714846.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • 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://scripts.sil.org/OFLIn PDF document text

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