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.
• 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.
• 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
• 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/RXhjZXB0aW9uIEVmY3JlYXRlZXJyb3IgSW4gTW9kdWxlIERzb3VuZGRsbCBHdGEgNCBGaXgRXh/webmail/ginning.standouts?placemat.ZG93bmxvYWR8Qzl6Tm1RNGRIeDhNVFkxTmpjM01UZ3hPSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA PDF link annotation

  • https://automarkt.click/wp-content/uploads/2022/07/ArtCAM2014Fixed_FreeDownload.pdfIn PDF document text
  • http://www.benningtonfol.org/mario-is-missing-peaches-tale-v2-hack/In PDF document text
  • https://ksycomputer.com/videocad-8-professional-link/In PDF document text
  • https://autocracymachinery.com/redescobrindo-o-reino-pdf-download-better/In PDF document text
  • https://riberadelxuquer.com/wp-content/uploads/2022/07/cititav.pdfIn PDF document text
  • https://purosautoshouston.com/?p=30748In PDF document text
  • http://farmaniehagent.com/wp-content/uploads/2022/07/Jimmy_Eat_World_Bleed_American_Deluxe_Zip.pdfIn PDF document text
  • https://likesmeet.com/upload/files/2022/07/U5K2mPfN5Kus5hfsT3H9_02_24db4a2be937a966177e88f17f540eb7_file.pdfIn PDF document text
  • https://www.hhlacademy.com/advert/usbcrypt-10-9-5-_verified_-crack/In PDF document text
  • https://ssmecanics.com/neospeech-tts-voiceware-korean-yumi-voice-sapi5-vw-net-com-pointilles-b-new/In PDF document text
  • https://www.sabinaohio.us/sites/g/files/vyhlif6541/f/uploads/sewer_lateral_inspection_form_0.pdfIn PDF document text
  • http://jwmarine.org/remote-desktop-connection-7-1-client-download-windows-xp-__exclusive__/In PDF document text
  • https://davidhassmann.com/wp-content/uploads/2022/07/Ydgpatch_1_2_16_14_Rar.pdfIn PDF document text
  • http://www.ecomsrl.it/wp-content/uploads/2022/07/Xforce_Keygen_Adobe_Acrobat_Xi.pdfIn PDF document text
  • https://molenbeekshopping.be/wp-content/uploads/2022/07/tenwill.pdfIn PDF document text
  • https://dikatonerprint.com/kmspico-11-1-9-final-portable-office-and-windows-10-activator-extra-quality-download/In PDF document text
  • https://delicatica.ru/2022/07/02/superspeed-ramdisk-plus-12-crack-extra-quality-commandments/In PDF document text
  • https://fokusparlemen.id/wp-content/uploads/2022/07/IMyfoneUmate6816inclPatchSerialKey.pdfIn PDF document text
  • http://aparatefitness.com/?p=21009In PDF document text
  • http://launchimp.com/dil-se-720p-movie-free-download-best/In PDF document text
  • http://evacdir.com/rxhjzxb0aw9uievmy3jlyxrlzxjyb3igsw4gtw9kdwxlierzb3vuzgrsbcbhdgegncbgaxgrxh/webmail/ginning.standouts?placemat.zg93bmxvywr8qzl6tm1rngriedhnvfkxtmpjm01uz3hpshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbdaIn PDF document text
  • http://www.ecomsrl.it/wp-content/uploads/2022/07/xforce_keygen_adobe_acrobat_xi.pdfIn 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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