Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fa155630f7c37bc…

MALICIOUS

PDF

226.2 KB Authoring application: Skia/PDF m150 Google Docs Renderer First seen: 2026-05-19
MD5: 505a59e1ee501bc676a9b4befffea2ce SHA-1: ab95e7c2f930a349579e2b29f4c52c5cf0fae1b0 SHA-256: 4fa155630f7c37bc25d6a59531f8e33286edd63a250a9a4588533f3ca9e0fef4
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 a5284592d3 46 samples

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00020a5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20A5F 11756 bytes
SHA-256: 1ed189952e2d1563755a1d7e1e03904ead9c3a212f7ae1f77a5ea633b21c42bc
font_01_sfnt_off00021f97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21F97 22200 bytes
SHA-256: a5284592d379f3d159c2c558c41d69bb7e0e16a0745209e79521b49f334639b8
font_02_sfnt_off0003070c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3070C 21692 bytes
SHA-256: 1ea0b7d0c124c705b780ae1f41b1fe405756a166f428d56dec17809b79027e66
font_03_sfnt_off000311f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x311F4 290636 bytes
SHA-256: 082c5622f6346b6c17f4bb364e396debbd0984cf502b6d1919d0f2be9631f7bd
font_04_sfnt_off00031d82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31D82 45440 bytes
SHA-256: df9715da8bb7c731bf8f324a29fc480781919f6fb5dfc6296b72fb5acdca555e
font_05_sfnt_off000360fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x360FC 12104 bytes
SHA-256: 883364879ae20622a8b3200a2459700638e5f0c62bda57e83de43d2f0488aba1

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