Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac53ba441d68afbc…

MALICIOUS

PDF

278.6 KB Authoring application: Skia/PDF m150 Google Docs Renderer First seen: 2026-05-19
MD5: 37bd78ab7432c1f4a3db622ccbbbd23f SHA-1: 48879e621f628cc1b0c73ea8d30030166ac757d4 SHA-256: ac53ba441d68afbc7228d4f196e6d2ef2dacf793631497b101974c7f0a7dd968
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: shared payload 83dc1e0edb 30 samples

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_014_off00024000.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x24000 150232 bytes
SHA-256: 83dc1e0edb107feb1c6af14daa51609ee91b56dd8d1f4bcb421c8c61ff4b68f6
font_01_sfnt_off00034a57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34A57 220192 bytes
SHA-256: 916bac5003c0d664f8573a3542a6e2e312f91941748641c5211fbf19ac5dd68d
font_02_sfnt_off00035b3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35B3B 51960 bytes
SHA-256: 10d5a026135e644b2cf1e05c67708a8f2de3a22d5088acded7913ac5a6c9274f
font_03_sfnt_off000370de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x370DE 47796 bytes
SHA-256: e63a51dfd52b6a8c3166c59ef4814eb245c5181b09637107ec97ab4eb48e1cf5
font_04_sfnt_off00044521.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44521 17272 bytes
SHA-256: 2e43a4083ec8d0f0efbeffa93fd97b66f568ddcadd32a9075f54d856dcebd319

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