PDF static analysis report

Static analysis result for SHA-256 2bf4944d1e783e83…

SUSPICIOUS

PDF

34.7 KB Created: 2021-05-24 04:51:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 97104f847e016182698ccdf3e8486645 SHA-1: ac96dda821a4fa8507a8cfb9e780c2c977109ff2 SHA-256: 2bf4944d1e783e8390dd17611e6ad2051eca016f6f5b2db51a4f5f282ba48d6e
52 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains heuristics indicating it links to a "free generator / game hack" lure, specifically mentioning Robux. The document body and embedded URLs reinforce this, pointing to sites offering "Robux Free Co" and "free robux on roblox". This suggests a phishing or scam attempt designed to trick users into visiting malicious sites, potentially for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier clean score 0.1044

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/robux-free-co-game-hack PDF link annotation
    • https://istanagloves.com/ckfinder/userfiles/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn 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_002_off00002d1d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2D1D 25680 bytes
SHA-256: 90eee5f1fa55fbcbd4dbded9ee6c321d16d5d95fb336322c46bdeda25d06e3f6
font_01_sfnt_off00006780.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6780 18012 bytes
SHA-256: 3f1ded8a9c51e4f0f41c660fd84d3573ebe8f92a83837bcaa523a9614d650e73

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