Malicious PDF — malware analysis report

Static analysis result for SHA-256 b66f79f7d22188a7…

MALICIOUS

PDF

277.1 KB Authoring application: Skia/PDF m150 Google Docs Renderer First seen: 2026-05-22
MD5: a57f8b4d9f10dc51d33761fd36b47f78 SHA-1: cdced78e5fcdb666e4f1d2475ae167993807cb93 SHA-256: b66f79f7d22188a702f89085b874ae79d20a0d0f58d40f6f2b8a7a97107615ff
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 9

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_014_off00022132.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x22132 151220 bytes
SHA-256: 254fc6d9978b371a457f3202913e2e0fd79df9a658a1c7269bbf765c0363c3d4
stream_018_off0002d3e3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2D3E3 18240 bytes
SHA-256: ab5f571bf0cd18a495d3ad2095b48edc8a90a4ff34d2cb5d46c82eaa51a75def
stream_022_off0002f35f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F35F 18240 bytes
SHA-256: 33e060654ed1208fc726f2323a8a9e7d9de6f6c8c2aedd340c7ed605b422fc95
font_00_sfnt_off0001b8c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B8C9 219896 bytes
SHA-256: 2490916841451c46c3dd7e7d20a121960ff92d90b9a50c2276d2b2940d3ea8e4
font_01_sfnt_off0001d0ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D0ED 31356 bytes
SHA-256: dc24c0d6ff7df84618fb426e50a23f8205949e1a4833aab44670069e36afa9da
font_03_sfnt_off0002b0d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B0D6 13508 bytes
SHA-256: bd9e83287b0d68b69d51ade3b1a6d88c9d79616100fdc6bf8b94f35bdafefa18
font_04_sfnt_off0003267f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3267F 14716 bytes
SHA-256: 82168ca03b9f7621e2c0b36d64c8f9aea69ba405cab24ebac55b379f478b6d39
font_05_sfnt_off0003df24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DF24 50208 bytes
SHA-256: 305bf8c7a76ca05575d24c7c0fa3c8ce32844576d3cdaa976f680868b869fef6
font_06_sfnt_off0003ee8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3EE8C 47796 bytes
SHA-256: e63a51dfd52b6a8c3166c59ef4814eb245c5181b09637107ec97ab4eb48e1cf5

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