Malicious PDF — malware analysis report

Static analysis result for SHA-256 258ad51d2548afde…

MALICIOUS

PDF

113.3 KB Created: 2022-09-11 17:43:41 +00:00 Authoring application: quawon (via PDF Master 1.0.1) First seen: 2026-07-12
MD5: 10b0609cac966f87a9d7c30b5546b3bd SHA-1: fdc0df4f464efaa247fe6d5aeb645ac9cc691e72 SHA-256: 258ad51d2548afded2f100b1472f3bfa8cbe7a9dd7c7d96a53ff678122daf0b8
104 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0016

Heuristics 4

  • 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 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.
  • 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://bestentrypoint.com/woman.dillon?ZG93bmxvYWR8Zno3TVRBMmN6WjhmREUyTmpJMk9EQXpPVEI4ZkRJMU9UQjhmQ2hOS1NCWGIzSmtjSEpsYzNNZ1cxaE5URkpRUXlCV01pQlFSRVpk=dGl2byBkZXNrdG9wIHBsdXMgbGljZW5zZSBrZXkgY3JhY2sdGl/fending/robbed/caliph/summable.unscrewing PDF link annotation
    • https://smartsizebuildings.com/advert/download-_top_-shoemaster-v-7-1-13/In PDF document text
    • http://www.khybersales.com/2022/09/11/mvtec-halcon-12-0-crack-patcher-link/In PDF document text
    • https://www.batiksukses.com/nursing-theory-of-carmelita-c-divinagracia/In PDF document text
    • http://lavavajillasportatiles.com/?p=84778In PDF document text
    • http://vietditru.org/advert/crack-top-veronisoft-ip-net-checker-v1-4-6-7-x64-laxity/In PDF document text
    • https://instafede.com/dll-files-fixer-v3-1-81-2801-preactivated-link/In PDF document text
    • https://atiqxshop.nl/wp-content/uploads/2022/09/Download_EXCLUSIVE_Bunny_Hop_Jump_Cs_16_11.pdfIn PDF document text
    • http://aqaratalpha.com/?p=53359In PDF document text
    • https://www.scoutgambia.org/wp-content/uploads/2022/09/giffnerv.pdfIn PDF document text
    • http://www.distributorbangunan.com/?p=89771In PDF document text
    • https://parsiangroup.ca/2022/09/titanic-hd-movies-in-hindi-__exclusive__/In PDF document text
    • https://news.mtkenya.co.ke/advert/graffixpro-studio-activation-ser-exclusive/In PDF document text
    • http://sourceofhealth.net/wp-content/uploads/2022/09/Cs_16_Wallhack_Opengl32dll_Download_Skype.pdfIn PDF document text
    • http://go-premiums.com/wp-content/uploads/2022/09/Ploytec_USB_ASIO_USB_2_Audio_Driver_2840_For_Win_XP_Win_Vista.pdfIn PDF document text
    • http://climabuild.com/cast-away-2000-bluray-720p-900mb-ganool/In PDF document text
    • http://fabianozan.com/?p=22722In PDF document text
    • https://entrelink.hk/political/pueblo-enfermo-de-alcides-arguedas-pdf/In PDF document text
    • https://shobeklobek.com/winavivideoconverterv11614734serial/In PDF document text
    • https://www.iltossicoindipendente.it/wp-content/uploads/2022/09/gaslato.pdfIn PDF document text
    • https://innovacioncosmetica.com/civilization-5-trainer-10017rar-verified/In PDF document text
    • https://atiqxshop.nl/wp-In PDF document text
    • http://sourceofhealth.net/wp-In PDF document text
    • http://go-premiums.com/wp-content/uploads/2022/09/Ploytec_USB_ASIO_USB_2_AIn PDF document text
    • http://bestentrypoint.com/woman.dillon?zg93bmxvywr8zno3tvrbmmn6wjhmreuytmpjmk9eqxppvei4zkrjmu9uqjhmq2hos1ncwgizsmtjsepsyznnz1cxae5urkpruxlcv01pqlfsrvpk=dgl2bybkzxnrdg9wihbsdxmgbgljzw5zzsbrzxkgy3jhy2sdgl/fending/robbed/caliph/summable.unscrewingIn 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000157c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x157C 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off00009d68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D68 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261

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