Malicious PDF — malware analysis report

Heuristics 8

• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Cracked-software lure uses shortlink/download gateway critical PDF_CRACKED_SOFTWARE_SHORTLINK_LURE
  PDF visible text advertises a crack, serial number, archive, or pirated-software download and pairs it with a shortlink or encoded download gateway. This is a high-confidence social-engineering carrier for unwanted software or droppers; the PDF itself is not a parser exploit.
• 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.
• Cracked-software lure uses download-gateway redirectors high PDF_CRACKED_SOFTWARE_REDIRECTOR_LINK_FARM
  PDF contains multiple cracked-software/keygen/serial-key lure links together with long encoded download-gateway URLs or known crack-download redirector hosts. This is stronger than generic piracy vocabulary: the document is an SEO lure that funnels users through redirect/download infrastructure commonly used for adware, unwanted software, or droppers.
• PDF links to a cracked-software download doorway (base64-obfuscated) high PDF_CRACKED_SOFTWARE_DOWNLOAD_DOORWAY
  PDF's embedded link hides a pirated-software title as a base64 blob inside the URL path/query (and/or carries the ``download|`` doorway-template marker), rather than in visible text. This is a TCPDF-generated SEO doorway that ranks for software-piracy searches and funnels users to fake 'crack/keygen' download pages distributing adware, potentially-unwanted programs, or droppers. The base64 encoding is deliberate obfuscation to evade plaintext lure rules; the PDF itself carries no parser exploit — the risk is the linked crack-download destination.
• PDF link farm advertises cracked/pirated software medium PDF_CRACKED_SOFTWARE_LURE
  PDF contains many clickable links whose targets use cracked-software, keygen, serial-key, or warez vocabulary. These are SEO-spam lure documents that rank for software-piracy searches and route users to fake 'crack' download pages distributing potentially-unwanted programs, adware, or droppers. The PDF itself carries no exploit — the risk is the linked destinations.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://evacdir.com/approximating/.bristly.W0ZVTExdIHBybzEwMCA1LjE4IGN6IGNyYWNrW0Z?evasion]=absoluteley=ZG93bmxvYWR8ZGk4ZFdoamFYeDhNVFkxTkRrNE9URTJNbng4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA.clave PDF link annotation

  • https://ubipharma.pt/2022/06/12/sigasi-better-keygen/In PDF document text
  • https://evol.ai/dgex/index.php/advert/visual-studio-2017-crack-iso-with-product-key-download-better/In PDF document text
  • https://www.turksjournal.com/wp-content/uploads/2022/06/RagelanguagepackSKIDROW.pdfIn PDF document text
  • https://biancaitalia.it/wp-content/uploads/2022/06/15708_Manual_Examen_Psicometrico_Imss_Word_Descargar_Gratis_Trabajos_Pdf.pdfIn PDF document text
  • https://www.vsv7.com/upload/files/2022/06/rsFrUhycahGkuW8fJMBg_12_c3dc07f948b8386d9d4747e877f900d2_file.pdfIn PDF document text
  • https://deardigitals.com/virtualdjpro7freedownloadfullversiontorrent/In PDF document text
  • https://houstonhousepc.com/pulpmotion-advanced-3-core-keygen-mac/In PDF document text
  • https://www.sosho.pk/upload/files/2022/06/KssSOYSq3ZQVCLmRgBaG_12_a9bd3ad478889ed60b017d1bf365bd20_file.pdfIn PDF document text
  • https://ezeizanoticias.com.ar/advert/call-of-duty-modern-warfare-2-download-torent-tpb-pcgolkes/In PDF document text
  • http://rastadream.com/?p=14649In PDF document text
  • http://stashglobalent.com/?p=29156In PDF document text
  • https://plainbusiness.net/?p=29744In PDF document text
  • https://liquidonetransfer.com.mx/?p=15860In PDF document text
  • https://topshoppingpro.online/wp-content/uploads/2022/06/Mvtec_Halcon_120_Crack_78_UPD.pdfIn PDF document text
  • https://roundabout-uk.com/wp-content/uploads/fidpea.pdfIn PDF document text
  • https://vkraini.com/upload/files/2022/06/SDFFwzoGCtCAw6RxUvpo_12_a9bd3ad478889ed60b017d1bf365bd20_file.pdfIn PDF document text
  • https://tuinfonavit.xyz/?p=8577In PDF document text
  • https://workplace.vidcloud.io/social/upload/files/2022/06/nbZ5RHRNsc4N39eCHtYG_12_a9bd3ad478889ed60b017d1bf365bd20_file.pdfIn PDF document text
  • http://iptvpascher.com/?p=13727In PDF document text
  • https://koi-rausch.de/wp-content/uploads/rainaet.pdfIn PDF document text
  • http://evacdir.com/approximating/.bristly.w0zvtexdihbybzewmca1lje4ign6ignyywnrw0z?evasion]=absoluteley=zg93bmxvywr8zgk4zfdoamfyedhnvfkxtkrrne9urtjnbng4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda.claveIn PDF document text
  • http://evacdir.com/approximating/.bristly.W0ZVTExdIHBybzEwMCA1LjE4IGN6IGNyYWNrW0Z?evasion]�soluteley=ZG93bmxvYWR8ZGk4ZFdoamFYeDhNVFkxTkRrNE9URTJNbng4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA.claveIn PDF document text
  • http://www.tcpdf.orgIn 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/xap/1.0/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://www.aiim.org/pdfa/ns/extension/In PDF document text
  • http://www.aiim.org/pdfa/ns/schema#In PDF document text
  • http://www.aiim.org/pdfa/ns/property#In PDF document text
  • http://www.aiim.org/pdfa/ns/id/In PDF document text

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