Malicious PDF — malware analysis report

Static analysis result for SHA-256 c388838a39dec21e…

MALICIOUS

PDF

287.3 KB Authoring application: Skia/PDF m150 Google Docs Renderer First seen: 2026-05-19
MD5: aa33af9d28894ca63fccd8fc9cc7ceae SHA-1: c875b40f31c7ccec5f7c3df182948a8a3b52d254 SHA-256: c388838a39dec21e651a48b97036ddcf9efca27d514dd8b67cc0a7184bb5c021
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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_024_off00033e0c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33E0C 151768 bytes
SHA-256: f4dd8cd091dd6a94d21a6dd777f5beeea2d45d8879c5f976d49069c0f6816bdc
font_00_sfnt_off0002d7cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D7CD 217192 bytes
SHA-256: ce7bc35b7c7996fcde4d21a6d5c57529790ffbba4bf041e52f21f8ad11bb865b
font_01_sfnt_off0002e632.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E632 28648 bytes
SHA-256: 802e4082079eeda0e06a5a32776f4654ec58de6653383537d7d9d4856feca066
font_02_sfnt_off00030dee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DEE 68044 bytes
SHA-256: 30a1711a17150b1f93e8bc270542b3ea727f110981bbfdf7c67865e851d7aed5
font_04_sfnt_off0003e853.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E853 10772 bytes
SHA-256: a38386d235cb8fde479c073bbabeeb44e7f5c480001fd3def913e27b42b7ec0a
font_05_sfnt_off0004416b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4416B 1304 bytes
SHA-256: cbfa16375d287df96228bb989136541e05983183430ce318396dbd9f24e17c32

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