Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb00493364e437b6…

MALICIOUS

PDF

117.4 KB Created: 2022-07-26 06:45:31 +00:00 Authoring application: valalise (via PDF Master 1.0.1) First seen: 2026-05-04
MD5: 31338fc683b7e9e22004b0cb2e4fd9eb SHA-1: 495a7105d04ba4dc0291315c05bded8bfdef4edf SHA-256: fb00493364e437b6c8ec8b25435fed901b10fe4bdcc6c2984038f5de13fc0c0b
142 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0009

Heuristics 6

  • 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.
  • 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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://blogbasters.com/ZG93bmxvYWR8Rmk3TVRGNmVtaDhmREUyTlRneU1UZzVPRFY4ZkRJMU9UQjhmQ2hOS1NCWGIzSmtjSEpsYzNNZ1cxaE5URkpRUXlCV01pQlFSRVpk/atherton.sudies?=foresaw&tortes=MjAwMCBzb2x2ZWQgcHJvYmxlbXMgaW4gZGlzY3JldGUgbWF0aGVtYXRpY3MgcGRmMjA PDF link annotation
    • http://torbayexperts.com/wp-content/uploads/2022/07/activador_adobe_crack_adobe_all_download_pc.pdfIn PDF document text
    • http://dottoriitaliani.it/ultime-notizie/senza-categoria/shakira-songs-free-download-zip-extra-quality/In PDF document text
    • https://www.deleksashop.com/microsoft-office-word-2007-thethingy-64-bit/In PDF document text
    • https://www.iltossicoindipendente.it/2022/07/26/jruler-pro-3-1-47/In PDF document text
    • http://facebizarre.com/?p=23998In PDF document text
    • https://pubyeti.com/wp-content/uploads/2022/07/Mathematical_Physics_By_Pk_Chattopadhyay_Pdf_Free_Download_LINK.pdfIn PDF document text
    • http://nelsonescobar.site/?p=11140In PDF document text
    • https://slitetitle.com/sony-firmware-extension-parser-device-driver-8-0-1-2-fixed/In PDF document text
    • https://hanffreunde-braunschweig.de/wp-content/uploads/2022/07/Windows_Xp_Kms_Activator-1.pdfIn PDF document text
    • https://hamrokhotang.com/advert/company-of-heroes-tales-of-valor-patch-2-602-to-2-700-25/In PDF document text
    • https://quickpro.site/wp-content/uploads/2022/07/Grand_Masti_720p_Hindi_Movie_LINK.pdfIn PDF document text
    • https://marijuanabeginner.com/1080p-remo-tamil-_verified_/In PDF document text
    • https://cannabisrepository.com/wp-content/uploads/2022/07/RealFlight_G2_200723_Update_Patch.pdfIn PDF document text
    • http://walter-c-uhler.com/?p=29349In PDF document text
    • https://www.matera2029.it/wp-content/uploads/2022/07/elhombresinsombra1080platino.pdfIn PDF document text
    • https://solaceforwomen.com/fsx-feelthere-embraer-regional-jets-v2-erj135-erj145-pai-torrent-better/In PDF document text
    • https://bestrest.rest/wp-content/uploads/2022/07/Mu_Hobby_Dl_Wings_Legendary_Set164_HOT.pdfIn PDF document text
    • https://sattology.org/wp-content/uploads/2022/07/deerprec.pdfIn PDF document text
    • https://rwbible.com/signals-and-systems-2e-oppenheim-pdf-download-upd/In PDF document text
    • https://businessbooster.page/wp-content/uploads/2022/07/Libro_El_Secreto_De_Selena_Descargar_Gratis_Pdf_VERIFIED.pdfIn PDF document text
    • https://pubyeti.com/wp-In PDF document text
    • https://businessbooster.page/wp-In 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002621.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2621 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000ae0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE0D 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261