Malicious PDF — malware analysis report

Static analysis result for SHA-256 23657ee0ab7d2e77…

MALICIOUS

PDF

122.5 KB Created: 2022-07-25 19:53:41 +00:00 Authoring application: lyvysach (via PDF Master 1.0.1) First seen: 2026-05-17
MD5: fbe985bae3ddbb0063866a98459525d4 SHA-1: 803ce746c08652c10b7f32220ddcbe96a932601c SHA-256: 23657ee0ab7d2e7707bf43eb2b18cafd7b4564815cb628f9f5f5dd48ffff10f6
249 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0005

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 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://awarefinance.com/?heartworms=concern/UGhpciBIZXJhIFBoZXJpIGhkIGRvd25sb2FkIDcyMHAUGh/feasted/hearthealth.ZG93bmxvYWR8Rmc0YjNOME9IeDhNVFkxT0RJeE9EazROWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA PDF link annotation
    • https://guest-bloggers.com/wp-content/uploads/alecacke.pdfIn PDF document text
    • http://media.snuff24.se/2022/07/yelearya.pdfIn PDF document text
    • https://www.jpgcars.com/blog/151682In PDF document text
    • http://debbiejenner.nl/extremekaraokev30crack-updated/In PDF document text
    • https://weilerbrand.de/wp-content/uploads/2022/07/CorelDRAWGraphicsSuiteX7v1710572KeygenOnlyCORErar_BETTER.pdfIn PDF document text
    • https://www.chemfreecarpetcleaning.com/tommy-jaud-hummeldumm-ebook-free-download-repack/In PDF document text
    • http://xn----7sbahcaua4bk0afb7c9e.xn--p1ai/raycity-official-server/In PDF document text
    • https://moronencaja.com/wp-content/uploads/2022/07/Wondershare_Filmora_60112_Portableepub.pdfIn PDF document text
    • https://homedust.com/vmcnetflix-netflix-watch-now-on-your-media-center-extender/In PDF document text
    • https://bestrest.rest/wp-content/uploads/2022/07/EmpireEarth2003466cracknocdrar.pdfIn PDF document text
    • https://www.onlineusaclassified.com/advert/punto-de-venta-sicar-cracked-install/In PDF document text
    • https://turn-key.consulting/2022/07/25/windows-7-orjinal-yapma-cw-indir-gezginler/In PDF document text
    • https://wanoengineeringsystems.com/sony-vegas-7-0b-with-serial-rar-verified/In PDF document text
    • https://npcfmc.com/dt04-img-pes-2013-rar/In PDF document text
    • https://leasetrade.se/wp-content/uploads/2022/07/giansel.pdfIn PDF document text
    • http://heritagehome.ca/advert/aaina-indian-full-movie-on-dailymotion-best/In PDF document text
    • https://lannews.net/advert/google-sketchup-pro-2018-v18-1-1456-x86x64-keygen-high-quality/In PDF document text
    • https://beautysecretskincarespa.com/2022/07/25/solution-manual-system-dynamics-4th-edition-katsuhiko-ogata-pdf-extra-quality/In PDF document text
    • https://www.raven-guard.info/orange-tree-samples-corebass-pear-kontaktdynamics-work/In PDF document text
    • https://datingmarriagehub.com/wp-content/uploads/2022/07/Club_International_Magazine_Online.pdfIn PDF document text
    • https://weilerbrand.de/wp-In PDF document text
    • https://www.chemfreecarpetcleaning.com/tommy-jaud-hummeldumm-ebook-free-download-In PDF document text
    • https://moronencaja.com/wp-In PDF document text
    • https://beautysecretskincarespa.com/2022/07/25/solution-manual-system-dynamics-4th-edition-In PDF document text
    • https://datingmarriagehub.com/wp-In PDF document text
    • http://awarefinance.com/?heartworms=concern/ughpcibizxjhifbozxjpighkigrvd25sb2fkidcymhaugh/feasted/hearthealth.zg93bmxvywr8rmc0yjnome9iedhnvfkxt0rjee9eazrowhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbdaIn 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
🗂 Part of campaign: secureserver.net 1471 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000365d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x365D 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000be49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE49 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261