Malicious PDF — malware analysis report

Static analysis result for SHA-256 00290f5b093ec681…

MALICIOUS

PDF

44.4 KB Created: 2021-05-17 08:30:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c40927a400ad01eb72873d8379ea86f4 SHA-1: 63e63e87e9d14cf2c7f1ea3ae412ba359654f2d7 SHA-256: 00290f5b093ec6812ae49c3f38d00d115b14621dbad805ac74eb64271a3e6be3
170 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a lure for a 'Roblox Hack Unlimited Robux' and embeds a malicious URL that redirects to a site offering a game hack. The document also displays a fake CAPTCHA, likely to trick the user into interacting further or executing a payload. The primary malicious URL identified is https://netcdn.xyz/app/431946152/roblox-hack-unlimited-robux-game-hack.

Machine Learning

  • Nyx PDF Classifier clean score 0.0136

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-hack-unlimited-robux-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003049.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3049 30744 bytes
SHA-256: 0f8633c28e6ae79063a7354272288301a3e931d05f5e0316d18f7f4c0a8cc40e
font_01_sfnt_off000077ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77EC 7448 bytes
SHA-256: a76ff9b4805dcff342f7268a16e2e3c2ff2b31b96c381fe4deb6ceea777bce90
font_02_sfnt_off000089cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89CF 19168 bytes
SHA-256: c229ae85f225584a05b8ae3a5d05ef5eb919d65508796bcf435d04f59e516df3

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