Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d3e1a2691e4204b…

MALICIOUS

PDF

394.6 KB Authoring application: Skia/PDF m150 Google Docs Renderer First seen: 2026-05-29
MD5: 70331266b1273ef5a2c09e36f6ba28d0 SHA-1: fc162b3419a9de2d46991f8988165c2863fdda15 SHA-256: 4d3e1a2691e4204bce8531339e308a02cf20a4fac3a0654a7588d7411cc6db2b
84 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0007

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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 https://www.expedia.com?utm_source=chatgpt.com PDF link annotation
    • https://www.expedia.com/service?utm_source=chatgpt.comIn PDF document text
    • https://www.expedia.com/Flights?utm_source=chatgpt.comIn PDF document text
    • https://www.expedia.com/Hotels?utm_source=chatgpt.comIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_032_off00042aa8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x42AA8 152360 bytes
SHA-256: 792805a010b89926f2e5d32bc92416db8b6fd629926b2e3f7cd6bbcc7b5a9e19
stream_042_off0004f03d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F03D 18240 bytes
SHA-256: 33e060654ed1208fc726f2323a8a9e7d9de6f6c8c2aedd340c7ed605b422fc95
font_00_sfnt_off0003754e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3754E 130404 bytes
SHA-256: 26726d87d231045431aa25d25e3103103fa557af37af4e2f37300c87753e2e8d
font_01_sfnt_off0004234c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4234C 15348 bytes
SHA-256: f6acb7189296e2249ef99728e05cc41a02a1234e2d79838fccfcea17e9509413
font_03_sfnt_off0005ba5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BA5D 217296 bytes
SHA-256: 9348191a920dca39cff044c9a671fc79a9077059997c68372ba0a762dcd100ca

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