Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf6b82481b790d0b…

MALICIOUS

PDF

170.8 KB Authoring application: Skia/PDF m150 Google Docs Renderer First seen: 2026-05-25
MD5: 6cdf32e95f0d1ef01815fe329dc6b34e SHA-1: b0103027e7e27a22953b3fef4c947eb71f5626f9 SHA-256: cf6b82481b790d0b2220d895a0208d70c86d4dba14e999d7fed1152f56a4abcb
80 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large amount of repetitive text, identified as a travel-support phone scam lure. This suggests the document is designed to trick the recipient into calling a fraudulent number, likely for financial gain or to extract personal information. No scripts or external URLs were extracted, limiting further analysis.

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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_013_off0001c319.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1C319 150912 bytes
SHA-256: 03e7bf5b53b00c0e939d72a9417288aea1ee8f40f68c247b63de8444f314f464
font_01_sfnt_off000251a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x251A9 220780 bytes
SHA-256: f91b363df35c89abd10f1b74970f2be596ef427093c0804e3a9d6a9cb3588a76
font_02_sfnt_off000263da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x263DA 47796 bytes
SHA-256: e63a51dfd52b6a8c3166c59ef4814eb245c5181b09637107ec97ab4eb48e1cf5
font_03_sfnt_off00029cea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29CEA 6096 bytes
SHA-256: 03c02e05377f87b7ffcfeecda6ee9d693b22f57d196f7e92f5eec09b0c4d8096

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