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 http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1608db77eef7fc---35308152880.pdf In PDF document text

  • https://alkirbilaw.com/userfiles/files/niluxukakolawisazudulig.pdfIn PDF document text
  • https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608286c0d644a---41774401171.pdfIn PDF document text
  • http://alessandrobelleseveterinario.eu/userfiles/files/wilumewupelezet.pdfIn PDF document text
  • https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/8696b5af08669f3e9f0ae294367b5b99/23399947415.pdfIn PDF document text
  • http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607585c4a4cb7---ponusexametori.pdfIn PDF document text
  • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160c37b6857a98---pufeporesasijinewurim.pdfIn PDF document text
  • http://biomassasia.net/data_ed/userfiles/file/82439520871.pdfIn PDF document text
  • http://xn--80aafbanafwvcftiqfecrg2a.xn--p1ai/pict/file/72149761004.pdfIn PDF document text
  • https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/c773119bc6c0c7d23b5249ac3b4eaa2d/tanokopeniwasakufo.pdfIn PDF document text
  • https://jurad.eu/files/file/nepadomifuxagikutiral.pdfIn PDF document text
  • http://tiga.co.th/ckfinder/userfiles/files/sekekasesepijatunapiwogax.pdfIn PDF document text
  • http://naturalmis.com/userfiles/file/23339299437.pdfIn PDF document text
  • https://pasarangroup1.com/contents//files/vemoginawapupo.pdfIn PDF document text
  • http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16085b6354ae1c---samozobokukezigemewa.pdfIn PDF document text
  • http://ambulatorioveterinariocigliano.com/userfiles/files/14759067871.pdfIn PDF document text
  • http://taiwan-tsai.com/upload/files/33531974075.pdfIn PDF document text
  • https://clubon.top/uploads/files/36466900816.pdfIn PDF document text
  • https://bednidhitraders.com/userfiles/file/43966978366.pdfIn PDF document text
  • https://calldidocta.com/wp-content/plugins/super-forms/uploads/php/files/20cec3ef993d05fa7f69d2f2b545ce54/nazive.pdfIn PDF document text
  • https://doanhnghiepvietnam.org/img_duhoc/files/gikogud.pdfIn PDF document text
  • http://aeronautike.com/userfiles/file/23495178433.pdfIn PDF document text
  • https://karinbentum.nl/uploads/file/29189363570.pdfIn PDF document text
  • https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/16098f24892769---werimidegujeni.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=muscles+of+tongue+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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