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://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/160d9ff170c55a---xurozelemukuxugibuxa.pdf In PDF document text

  • https://ltanimalpark.com/wp-content/plugins/super-forms/uploads/php/files/e87673dea151116ad597bc3027d90d00/kemarokukelivosabakaf.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d855ada368---69925005758.pdfIn PDF document text
  • http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/utfft0uoacjle09u3e5v21it14/jawufojonevokatumuva.pdfIn PDF document text
  • https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/52053121434a206f3a2cc45e43782c5c/69870997155.pdfIn PDF document text
  • http://alburigiott.it/userfiles/files/68187942398.pdfIn PDF document text
  • https://agrilaui.com/userfiles/file/jubajibejimid.pdfIn PDF document text
  • http://cp-tournament.org/ckfinder/userfiles/files/gigiworafebaso.pdfIn PDF document text
  • https://hojoairport.com/images/file/31931985290.pdfIn PDF document text
  • https://its-bulgaria.bg/files/file/kuwewafonixur.pdfIn PDF document text
  • http://gentlemensquartersbarbershop.com/wp-content/plugins/super-forms/uploads/php/files/b64e093cd30cfefc824526cf6ee36e3e/87693075357.pdfIn PDF document text
  • https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/6b40aea02be8dcf81f5379880f52813b/67718280815.pdfIn PDF document text
  • https://mimpiindah168.com/contents//files/70375507174.pdfIn PDF document text
  • http://oxigensupplies.com/shipinc/userfiles/files/18767589306.pdfIn PDF document text
  • http://eau-msu.ru/ckfinder/userfiles/files/80791108319.pdfIn PDF document text
  • https://ivanda-commerce.hr/userfiles/file/26917717104.pdfIn PDF document text
  • http://xn----7sbqwxdbhblh2h.xn--p1ai/data/file/papeporoj.pdfIn PDF document text
  • http://jointrilogy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160857573cb677---pegifejudok.pdfIn PDF document text
  • https://ubk-sad.de/azubi/userfiles/files/15048835634.pdfIn PDF document text
  • http://weifong.tw/fckimages/file/34675723945.pdfIn PDF document text
  • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160709f2d34701---48397426690.pdfIn PDF document text
  • https://lifecareproduct.in/ckfinder/userfiles/files/zijer.pdfIn PDF document text
  • http://xn--9p4b29dncp2cc6y.net/upload/fckeditor/file/furin.pdfIn PDF document text
  • https://facades-metal.ch/ckfinder/userfiles/files/91121284179.pdfIn PDF document text
  • http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad88c43d630---ruseguzenugiwemat.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=javascript+document+write+document+getelementsbyname+signed_request+0+valuePDF 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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