PDF static analysis report

Static analysis result for SHA-256 a294f4e2c734513c…

SUSPICIOUS

PDF

42.7 KB Created: 2021-05-10 14:19:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: bb8ec76b61ef668bc625358f8e39b043 SHA-1: 907e6fe078c960ad139f50e15c08950d58d89251 SHA-256: a294f4e2c734513ce929d7b094eae2acb291d161c8e8f0f89c9e0cba78b417c3
52 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a fake CAPTCHA lure and a visual download button, both designed to trick the user into interacting with the document. The embedded URI points to a suspicious URL, likely intended to host a malicious payload or redirect to a phishing site. No scripts were extracted, but the overall pattern suggests a social engineering attack to drive users to a compromised resource.

Machine Learning

  • Nyx PDF Classifier clean score 0.0344

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/431946152/roblox-sued-game-hack PDF link annotation
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000032fa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32FA 37544 bytes
SHA-256: ced5c45ad1e6f4c16d0a2b2c405cbdb2b7612e23a0f3c918060db064b6266faa
font_01_sfnt_off00008692.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8692 18100 bytes
SHA-256: ceb05d308fc17805291ab9e53434ca96f69a4d98ec9d0cd75399c721fdce8c16