Malicious PDF — malware analysis report

Heuristics 9

• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://medvor.ru/uplcv?utm_term=lively+wallpaper+cars PDF link annotation

  • http://cgpharma.in/cote_dor_import/admin/ckfinder/userfiles/files/wunesevuxorebokadax.pdfIn PDF document text
  • https://windscrm.net/files/file/12776437233.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/rimexabevivatuxifeji.pdfIn PDF document text
  • http://marsalanoleggio.it/userfiles/files/gekexosuzipaje.pdfIn PDF document text
  • https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/kkcctacuib8rv09fjj7bkvrcqp/zasalaxikuximasasatuzaxa.pdfIn PDF document text
  • http://xn--2o2b17g32e8xisqq.com/userData/board/file/44774509479.pdfIn PDF document text
  • https://satnamunicipalcorporation.com/admin/ckfinder/userfiles/files/70667150235.pdfIn PDF document text
  • http://ekstelekom.com/userfiles/file/63706113439.pdfIn PDF document text
  • http://am-assets.com/aom/magnolia/userfiles/file/mugakurugesojevosuduve.pdfIn PDF document text
  • http://www.kevimotor-rock.hu/files/files/60234290092.pdfIn PDF document text
  • https://bankkartya.hu/js/ckfinder/userfiles/files/52890546723.pdfIn PDF document text
  • https://phu-komplex.pl/pliki/file/rosexalufogonojukasaj.pdfIn PDF document text
  • https://bbu.vn/Images_upload/files/87782806279.pdfIn PDF document text
  • http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132b8a14bcdb---danifunimubaguvigarere.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133c65c48593---xesejexojed.pdfIn PDF document text
  • http://qianlong99.org/ckfinder/userfiles/files/wifukojukiju.pdfIn PDF document text
  • http://www.pavimentosyreformasferlu.es/ckfinder/userfiles/files/35901191701.pdfIn PDF document text
  • https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/3b2e4a65542eabb007e2fa88b5ec86a7/68884870481.pdfIn PDF document text
  • https://atrax.hr/files/nupozude.pdfIn PDF document text
  • https://minervatech.work/js/ckfinder/userfiles/files/90239803302.pdfIn PDF document text
  • http://anael.fr/fckeditor/userfiles/file/mobifaf.pdfIn PDF document text
  • http://ambulanceservice.pl/userfiles/file/10627798642.pdfIn PDF document text
  • http://pusheng168.com/uploadfiles/20210911005638.pdfIn PDF document text
  • http://ownlines.com/upfiles/file/49281028156.pdfIn PDF document text
  • http://zs.tom.ru/jsplugins/ckfinder/userfiles/files/vonufumiwubelisigipotu.pdfIn 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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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