Malicious PDF — malware analysis report

Static analysis result for SHA-256 16bc385b6d1e35a0…

MALICIOUS

PDF

355.7 KB Authoring application: Skia/PDF m150 Google Docs Renderer First seen: 2026-05-19
MD5: 4c2fd3abbbdc059fe42916f30ba22666 SHA-1: c189cc06e720c8c0daa4622d6905b813a0865be5 SHA-256: 16bc385b6d1e35a0ae287edbd5bd0131e62c70eb5d7162e6fcbc8681614908e8
80 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0001

Heuristics 2

  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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.
🗂 Part of campaign: volaris.com 813 samples

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 8

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_025_off00028440.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x28440 150324 bytes
SHA-256: 561eda1700772b61ca698ef14949bb075dbe3e5e16fd5e4a349d11dc76a69131
stream_044_off00040903.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x40903 18240 bytes
SHA-256: 40e421321e795e26ef42df8f532d3ea5ea8f2c595c2f46e8bbf04c2cd9121b4a
stream_052_off00044ee4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x44EE4 18240 bytes
SHA-256: 33e060654ed1208fc726f2323a8a9e7d9de6f6c8c2aedd340c7ed605b422fc95
font_01_sfnt_off00034947.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34947 69904 bytes
SHA-256: 97693be0065bc17cabd8a1533b5039d9b0bff7563ff221d5b33ea2a01270e6d6
font_02_sfnt_off0003977e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3977E 13508 bytes
SHA-256: bd9e83287b0d68b69d51ade3b1a6d88c9d79616100fdc6bf8b94f35bdafefa18
font_03_sfnt_off0004772e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4772E 221276 bytes
SHA-256: 01a01b542b1e8ae81e180080da0c94ab10a5d3050fe6bed23c16a66f3204eb74
font_04_sfnt_off00055298.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55298 13792 bytes
SHA-256: a057924d03d1b49c03817e5d18c7eb6f786732407869540be0e8b5e2969a5307
font_05_sfnt_off000559af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x559AF 47820 bytes
SHA-256: c37ff9f7ac38071c5562ac4531b40d9dd44e418c77721c770c79c0dc31a9a670

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