PDF static analysis report

Static analysis result for SHA-256 664dbd955df51d57…

SUSPICIOUS

PDF

37.2 KB Created: 2021-05-15 00:35:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: a21017c6c39d9944d70c6d45737e2ed7 SHA-1: c9d083416c9ae1b191850df058b20e9b53ec832a SHA-256: 664dbd955df51d57e887c8b35df87ef36f71a5c917f9095f947721efd76b67cb
52 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as suspicious. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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 https://netcdn.xyz/app/431946152/free-robux-that-actually-works-2021-game-hack PDF link annotation
    • https://collectrobuxIn PDF document text
    • 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
stream_003_off00003332.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3332 24756 bytes
SHA-256: 49ab4c1747b1a77d7aab9ca99a3e79fb68f0aa8793f5c79673d586483bab0216
font_01_sfnt_off00006c16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C16 19536 bytes
SHA-256: e162f10ab45425f1911b766a767f4688be22e04cba15be94f938466a51fc2df0

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