Malicious PDF — malware analysis report

Static analysis result for SHA-256 31ea5c5e8fb09348…

MALICIOUS

PDF

317.9 KB Authoring application: Skia/PDF m150 Google Docs Renderer First seen: 2026-05-24
MD5: 633f9f75a1543537243637adf0a7431b SHA-1: 2cee97b3e49de915b2355954a885a066c6ad417c SHA-256: 31ea5c5e8fb09348c7033b06afd1da784094943ec8e61103c5ad08252bcc6e5d
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_011_off000288dd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x288DD 152236 bytes
SHA-256: d9008e3fc4defd30dc2af30ce42f87246d6e70a2b9692ed669ead2d0e5b2d80c
stream_021_off0003b6ed.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3B6ED 18240 bytes
SHA-256: ab5f571bf0cd18a495d3ad2095b48edc8a90a4ff34d2cb5d46c82eaa51a75def
stream_025_off0003d669.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3D669 18240 bytes
SHA-256: 33e060654ed1208fc726f2323a8a9e7d9de6f6c8c2aedd340c7ed605b422fc95
font_01_sfnt_off00031bf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31BF1 40016 bytes
SHA-256: 0182b37f907b170eb7643082b0c7b3302a4d158fc72a4b3cc27563e8cc563543
font_02_sfnt_off0003722b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3722B 11800 bytes
SHA-256: dcfacf674d7b0931b82276b6a6a8a3b4f25ee4358c6f3451d753f926b76df495
font_03_sfnt_off00038c80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38C80 221900 bytes
SHA-256: 63a389b92a0afb112fe9670fcc0eb99aeef070253ea2a7d65e1e9c524fc27568
font_04_sfnt_off0003a0e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A0E8 51960 bytes
SHA-256: 62dea1b4a58003ce2f657e45d7bed0e0603b9d70c3ce6281d854f3b71d9f7d7c
font_05_sfnt_off00047d60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47D60 50400 bytes
SHA-256: 3933f0a171d2e1d52238afd1697f635a25c78debe3762eae68e9de3aebda16b8

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