Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e35a94a602da742…

MALICIOUS

PDF

40.4 KB Created: 2021-04-28 12:28:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 8068940c1f37fb295d459505301bba49 SHA-1: 1a243daeb754d3365aeaad5b50272115950172a9 SHA-256: 4e35a94a602da742ccaea64a3a3579296271276259adbd1f40050205ae4b13b0
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 4

  • 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.
  • 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/how-to-get-free-robux-in-roblox-on-ipad-game-hack In PDF document text
    • http://digilib.ivet.ac.id/repository/roblox-vehicle-simulator-hack-2021.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/roblox-hacks-board.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/roblox-locus-how-to-get-free-robux.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/free-robux-generator-without-downloading-apps.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/roblox-cool-free-tshirts.pdfIn PDF document text
    • http://digilib.ivet.ac.id//repository/free-roblox-gui.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/how-to-hack-money-in-roblox-lumber-tycoon-2.pdfIn PDF document text
    • http://digilib.ivet.ac.id//repository/john-doe-hacker-in-roblox.pdfIn PDF document text
    • http://digilib.ivet.ac.id//repository/how-to-steal-people-stuff-in-roblox-hacks.pdfIn PDF document text
    • http://digilib.ivet.ac.id//repository/best-way-to-get-robux-for-free-2021.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004106.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4106 25284 bytes
SHA-256: 58434cf2bfea1d0aab69e4fc0b3821a4964915fd40eff1ab0c65ade362eb6185
font_01_sfnt_off000079e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79E6 18932 bytes
SHA-256: a5045cd4a6fd9ad627bc185c85d424786b756f0c38b45702ec37e300884813d3

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