PDF static analysis report

Static analysis result for SHA-256 0181b0e1670897f5…

SUSPICIOUS

PDF

30.0 KB Created: 2021-07-20 16:31:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 0fed09d5309151671d64ee4b20d8a289 SHA-1: 4b0b8152f685e54a8a8b243b139b2cdbf6cfc1bc SHA-256: 0181b0e1670897f50b313cfd8bae1985dac9baf176925a4c3f64856f01d71618
52 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic indicating it links to a 'free generator / game hack' redirector, specifically targeting users interested in Minecraft. The embedded URL, http://netcdn.tw/app/479516143/minecraft-java-free-download-game-hack, is the primary indicator of this lure. While no scripts were explicitly extracted, the PDF structure and the nature of the lure suggest an attempt to trick users into downloading potentially malicious content.

Machine Learning

  • Nyx PDF Classifier clean score 0.0556

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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 http://netcdn.tw/app/479516143/minecraft-java-free-download-game-hack PDF link annotation
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002013.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2013 22832 bytes
SHA-256: ff2253e9b1a59860494b4d3e75a3997d88ec20dbfa6701272f3ba9ba37894da3
font_01_sfnt_off000052de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52DE 18572 bytes
SHA-256: 84d994c9ca9b5ef406cb0cbd16402c282b50396e13120ada9f75f5d4c4d42292

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