Malicious PDF — malware analysis report

Heuristics 9

• 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.
• 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://seachtop.com/?search=daiquiri&Q29udmVydCBQZGYgVG8gV29yZCBEZXNrdG9wIFNvZnR3YXJlIEZyZWUgRG93bmxvYWQgRnVsbCBWZXJzaW9uaW5zdG1hbmtzbAQ29=chaise/ZG93bmxvYWR8Sm84Wkd3eGVYeDhNVFkyTWpZNE1ETTVNSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/lessons/minivan PDF link annotation

  • https://turbulentelevenvansissi.nl/wp-content/uploads/2022/09/xentry_developer_keygen_chomikuj_19.pdfIn PDF document text
  • https://tarpnation.net/hd-online-player-idhu-thanda-police-tamil-movie-free-hot/In PDF document text
  • https://7blix.net/wp-content/uploads/2022/09/zenquyt.pdfIn PDF document text
  • http://www.gambians.fi/bitdefender-total-security-2020-crack-license-key-free/social-event/In PDF document text
  • http://officinabio.it/?p=42742In PDF document text
  • https://www.dovesicanta.it/wp-content/uploads/2022/09/genoequ.pdfIn PDF document text
  • https://grandvenetianvallarta.com/tales-of-pirates-woodcutting-bot-download-link/In PDF document text
  • https://www.newportcyclespeedway.co.uk/advert/command-and-conquer-3-tiberian-sun-no-cd-link-crack/In PDF document text
  • https://cefcredit.com/hp-operating-system-dvd-windows-7-professional-sp1-multilingual-keygen-work/In PDF document text
  • https://bestrest.rest/wp-content/uploads/2022/09/Ghost_Recon_Alpha_720p_BETTER_Download_Movie.pdfIn PDF document text
  • https://www.voyavel.it/ellibrorojodelasmatematicasmoisesvillenapdf29-top/In PDF document text
  • https://www.grenobletrail.fr/wp-content/uploads/2022/09/HACK_KMSAuto_Net_2015_165_2018_PC__Portable_BETTER.pdfIn PDF document text
  • https://trikonbd.com/relatos-vignolo-pes-13-crack-exclusive/In PDF document text
  • https://haitiliberte.com/advert/data-cash-230free-verified-delux-webcam-dlv-b705-39/In PDF document text
  • http://jameschangcpa.com/advert/sirius-astrology-software-cracked-downloadl-better/In PDF document text
  • http://nuihoney.com/hd-online-player-abcd-2-2015-720p-bluray-x264-51/In PDF document text
  • http://elsozzo.com/?p=16485In PDF document text
  • https://ofsnl.nl/wp-content/uploads/2022/09/Activate_IPhone_5_LINK_Full_ICLOUD_BYPASS_With_SSH_RAMDISK.pdfIn PDF document text
  • http://www.chandabags.com/ardfry-psd-codec-v1-6-1-0-crackl-patched/In PDF document text
  • https://gwttechnologies.com/fsx-blueprint-simulations-kiad-v1-1-2-crack-new/In PDF document text
  • https://turbulentelevenvansissi.nl/wp-In PDF document text
  • https://www.newportcyclespeedway.co.uk/advert/command-and-conquer-3-tiberian-sun-no-cd-link-In PDF document text
  • https://cefcredit.com/hp-operating-system-dvd-windows-7-professional-sp1-multilingual-keygen-In PDF document text
  • https://bestrest.rest/wp-In PDF document text
  • https://www.grenobletrail.fr/wp-In PDF document text
  • https://ofsnl.nl/wp-In PDF document text
  • http://seachtop.com/?search=daiquiri&q29udmvydcbqzgygvg8gv29yzcbezxnrdg9wifnvznr3yxjliezyzwugrg93bmxvywqgrnvsbcbwzxjzaw9uaw5zdg1hbmtzbaq29=chaise/zg93bmxvywr8sm84wkd3egvyedhnvfkytwpzne1ettvnshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/lessons/minivanIn 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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