Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3c9f5a6c7e20e4b…

MALICIOUS

PDF

53.5 KB Created: 2026-05-21 04:50:15 +00:00 Authoring application: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/148.0.0.0 Safari/537.36 (via Skia/PDF m148) First seen: 2026-05-21
MD5: 0c238f0804be61803bba90331f4c576e SHA-1: 0a041039309adb94ba96a56832056c4e63d93f80 SHA-256: b3c9f5a6c7e20e4bc2e8469015c3321703d0d47171dd7137660ce7a7823fedff
62 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0007

Heuristics 2

  • Invisible/repeated PDF links deliver payload file critical PDF_REPEATED_PAYLOAD_LINK_LURE
    PDF uses invisible link annotations and points to a direct payload download. Repeated invisible links or lure-like payload names such as document/unlock/verify archives match malware-delivery PDF carriers where the page is only a prompt and the real payload is fetched from the linked URL.
  • 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 https://dl.dropboxusercontent.com/scl/fi/owk8ru679w0xx45jnaf9m/Adobe-DC-Update-System.vbs?rlkey=0j7z366lfqhvywznuwh4t7s4s&st=hv0ov4da&dl=1 In PDF document text
🗂 Part of campaign: ifrype.com 6 samples

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68DB 13296 bytes
SHA-256: b4288e9483b272b67b64c42f83f2dfbfdea2bd7e5355cda70d1cbe9c194a0b26
font_01_sfnt_off0000910d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x910D 14684 bytes
SHA-256: 4ab383ec7711fe1768f462af2a3cb9633e9e4919321d9c49ea19e30dc886bf20
font_02_sfnt_off0000bd8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD8E 6636 bytes
SHA-256: 914e3d38932fbb47d652d5d7fb1b8cc69ab6f429b8ee14902264b83427a1d558

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