Malicious PDF — malware analysis report

Static analysis result for SHA-256 258f82b2564c7ffd…

MALICIOUS

PDF

129.5 KB Created: 2022-08-16 03:38:58 +00:00 Authoring application: quebel (via PDF Master 1.0.1) First seen: 2026-07-12
MD5: 5fe198da46582c401d7e4cc52ea83457 SHA-1: 2bfb9cf7b6a006e4c4bf236636dbf3a0eaf58103 SHA-256: 258f82b2564c7ffdbb64167c5165aeaae84d4c56c4bad083d8b7a7123bd15f04
104 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0063

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://evacdir.com/francorchamps/pushbike.sensitized?Y2FuZHkgbWF0Y2ggLSBmcmVlIHJvYnV4Y2F=buckthorn&ZG93bmxvYWR8QUsxTW1WdGRueDhNVFkyTURZeE1qQXpNSHg4TWpVNE4zeDhLRTBwSUVobGNtOXJkU0JiUm1GemRDQkhSVTVk=landfilling...silken PDF link annotation
    • https://www.coussinsdeco.com/how-to-find-out-how-much-money-is-on-a-roblox-gift-card-latest/In PDF document text
    • https://rednails.store/what-are-promo-codes-for-free-robux/In PDF document text
    • https://brutalrecords.com/coming-soon/In PDF document text
    • http://www.kitesurfingkites.com/free-games-to-play-online-without-downloading-anything-roblox-april-2022/In PDF document text
    • https://movingservices.us/index.php/2022/08/16/you-promised-my-son-free-robux-gif-latest/In PDF document text
    • http://dmmc-usa.com/?p=32179In PDF document text
    • https://greatriverfamilypromise.org/roblox-redeem-code-games-free-download-2022/In PDF document text
    • https://ebimarketing.com/wp-content/uploads/2022/08/vassale.pdfIn PDF document text
    • http://amlakparleman.com/wp-content/uploads/2022/08/play_roblox_for_free_online.pdfIn PDF document text
    • https://oceanofcourses.com/wp-content/uploads/2022/08/jalgera.pdfIn PDF document text
    • https://rodillosciclismo.com/sin-categoria/how-much-money-does-17-000-robux-cost-free-latest/In PDF document text
    • https://houstonhousepc.com/one-way-to-get-free-robux/In PDF document text
    • https://pure-forest-17986.herokuapp.com/free_promo_codes_for_robux_2020.pdfIn PDF document text
    • http://contabeissemsegredos.com/how-to-i-get-free-robux/In PDF document text
    • https://tidmodell.no/wp-content/uploads/2022/08/hungjim.pdfIn PDF document text
    • http://evacdir.com/francorchamps/pushbike.sensitized?y2fuzhkgbwf0y2gglsbmcmvlihjvynv4y2f=buckthorn&zg93bmxvywr8qusxtw1wdgruedhnvfkyturzee1qqxpnshg4twpvne4zedhlrtbwsuvobgntoxjku0jium1gemrdqkhsvtvk=landfilling...silkenIn 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_off0000381a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x381A 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000c006.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC006 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261