Malicious PDF — malware analysis report

Static analysis result for SHA-256 d03a7ae26643885e…

MALICIOUS

PDF

318.7 KB Authoring application: Skia/PDF m150 Google Docs Renderer First seen: 2026-05-25
MD5: e1ee7d9462ea75ff6e9f4d6778666d28 SHA-1: bc287ee0abd397018972147a86fe60e48c5a77a4 SHA-256: d03a7ae26643885ea3ce3a02181600c7e27978f19fc5ed0bb3a771191a1464d0
80 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF document that contains a large number of phone numbers, consistent with a travel support phone scam. The heuristic 'SE_TRAVEL_SUPPORT_PHONE_SCAM' indicates a high repetition of phone numbers, and 'SE_CALLBACK_LURE' confirms the pattern of a callback phishing or tech-support scam. No scripts were extracted, and the document body is heavily obfuscated, preventing further analysis of specific lures.

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_off000288d5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x288D5 152236 bytes
SHA-256: d9008e3fc4defd30dc2af30ce42f87246d6e70a2b9692ed669ead2d0e5b2d80c
stream_021_off0003ba14.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3BA14 18240 bytes
SHA-256: ab5f571bf0cd18a495d3ad2095b48edc8a90a4ff34d2cb5d46c82eaa51a75def
stream_025_off0003d990.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3D990 18240 bytes
SHA-256: 33e060654ed1208fc726f2323a8a9e7d9de6f6c8c2aedd340c7ed605b422fc95
font_01_sfnt_off00031be9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31BE9 41184 bytes
SHA-256: 7792c7cfab777d336618eefe3c43c359a54a3270eebee36cddb8ce3843379a5c
font_02_sfnt_off00037552.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37552 11800 bytes
SHA-256: dcfacf674d7b0931b82276b6a6a8a3b4f25ee4358c6f3451d753f926b76df495
font_03_sfnt_off00038fa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38FA7 221900 bytes
SHA-256: 63a389b92a0afb112fe9670fcc0eb99aeef070253ea2a7d65e1e9c524fc27568
font_04_sfnt_off0003a40f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A40F 51960 bytes
SHA-256: 62dea1b4a58003ce2f657e45d7bed0e0603b9d70c3ce6281d854f3b71d9f7d7c
font_05_sfnt_off00048087.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48087 50400 bytes
SHA-256: 3933f0a171d2e1d52238afd1697f635a25c78debe3762eae68e9de3aebda16b8

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