Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d39657633677ee6…

MALICIOUS

PDF

127.5 KB Created: 2022-07-04 12:12:08 +00:00 Authoring application: caenir (via PDF Master 1.0.1) First seen: 2026-06-14
MD5: a6d49c6817611ffa0c94914663ae840c SHA-1: cebff91d264a157092d97fe37130bda717797ef8 SHA-256: 0d39657633677ee61188f48283e8c245afd69074b37365baf6744afa04459e13
112 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0006

Heuristics 5

  • 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.
  • 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://xtraserp.com/ZG93bmxvYWR8elUwYUhKd1pueDhNVFkxTmpnNU1qTTFNbng4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/UGVyc2lhbiBEYXRlIFRvb2xzIEZvciAuTmV0IDIuMAUGV/elizabeths.bellyband.buses.intractable./banners PDF link annotation
    • https://calm-journey-09980.herokuapp.com/elwyhar.pdfIn PDF document text
    • http://subsidiosdelgobierno.site/?p=4414In PDF document text
    • https://golden-hands.co/wp-content/uploads/2022/07/brychry.pdfIn PDF document text
    • https://lannews.net/advert/servicemill-4-2-0-crack-with-key-free-latest-2022/In PDF document text
    • http://www.easytable.online/wp-content/uploads/2022/07/kariwint-1.pdfIn PDF document text
    • https://africanscientists.africa/wp-content/uploads/2022/07/berndarr.pdfIn PDF document text
    • https://whispering-citadel-52247.herokuapp.com/Internal_Chat_Client.pdfIn PDF document text
    • https://infinite-falls-00768.herokuapp.com/Quick_Cheque_Writer.pdfIn PDF document text
    • https://www.boscawennh.gov/sites/g/files/vyhlif4166/f/uploads/doc052422-05242022144120_1.pdfIn PDF document text
    • https://mandarinrecruitment.com/system/files/webform/sidebar-radio-vista-gadget.pdfIn PDF document text
    • https://seoburgos.com/file-bookmark-download-x64-updated-2022/In PDF document text
    • https://designpress.it/wp-content/uploads/2022/07/kargabo.pdfIn PDF document text
    • https://www.plymouth-ma.gov/sites/g/files/vyhlif3691/f/pages/plymouth_cee_task_force_summary.pdfIn PDF document text
    • https://6v9x.com/autodwg-attribute-extractor-crack-free-for-pc/In PDF document text
    • https://powerful-badlands-19627.herokuapp.com/Itunes_To_Windows_Media_Playlist_Converter.pdfIn PDF document text
    • https://verasproperties.com/2022/07/04/stellar-phoenix-database-repair-for-oracle-april-2022/In PDF document text
    • https://factorybraga.com/wp-content/uploads/2022/07/AquaLot.pdfIn PDF document text
    • https://aqueous-garden-54213.herokuapp.com/iRoot.pdfIn PDF document text
    • https://cleverposse.com/advert/monobrick-remote-with-product-key-free-download-for-pc/In PDF document text
    • https://www.plymouth-In PDF document text
    • http://xtraserp.com/zg93bmxvywr8eluwyuhkd1puedhnvfkxtmpnnu1qttfnbng4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/ugvyc2lhbibeyxrlifrvb2xziezvciautmv0idiumaugv/elizabeths.bellyband.buses.intractable./bannersIn PDF document text
    • https://wakelet.com/wake/ZoBIif1rpj4AEcYMCp80HIn 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_off00004f79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F79 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000d765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD765 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261