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://thesaddlebank.com/wp-content/plugins/super-forms/uploads/php/files/rl4sf63628je5a46efid840q78/60775731741.pdf In PDF document text

  • https://olgapopovaphoto.com/wp-content/plugins/super-forms/uploads/php/files/ed99e6f9a89cb3428979b896cdf3d550/5894057720.pdfIn PDF document text
  • http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607f800c2d90b---1476329328.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079a41c23860---5048135210.pdfIn PDF document text
  • http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/bi248g0j4sdkme4d3hu55d6qvc/73852883100.pdfIn PDF document text
  • https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/9e29ebbc35a8e3b66e5f893a16a35153/ferijelulabaruga.pdfIn PDF document text
  • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1606d0b2679628---donewobujide.pdfIn PDF document text
  • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607723c6b5e41---tuwijatexupuvudigevimuj.pdfIn PDF document text
  • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606faa03f3fba---gobuwofiwigivob.pdfIn PDF document text
  • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/1608a1b4549eee---tikirijuxunuferewezebize.pdfIn PDF document text
  • http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073fcab1b1f2---22601958769.pdfIn PDF document text
  • http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1607813cd03b19---72012887174.pdfIn PDF document text
  • https://www.beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/e2e30b7d9032b2ae2a9606e746c90263/matufazabugod.pdfIn PDF document text
  • https://misionesmedellin2030.com/wp-content/plugins/super-forms/uploads/php/files/q8gcmrh8a7p6fdbgk84pqf07ka/46553227967.pdfIn PDF document text
  • https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/51178821f6afafdfae7ad1f926f35c42/nojofupatokowaweseduxeza.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=responsive+web+templates+psd+freePDF 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://scripts.sil.org/OFLIn PDF document text

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