Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9da68b0e6000a42…

MALICIOUS

PDF

35.0 KB Created: 2021-07-09 17:06:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6e84cd47a2b4c0c5f46c6d2825be3642 SHA-1: 30dc64d6adb097d3b43818fde3fdee1cb01663ed SHA-256: e9da68b0e6000a4255e3ae075bf0a29b870be8ce8d566130747950bb2c9a1dd9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to a known malicious redirector, masquerading as a 'free generator' or 'game hack' for popular games. The primary link, http://netcdn.tw/app/431946152/free-roblox-cards-pin-number-game-hack, is heavily promoted within the document body and via heuristics. The document's intent is to trick users into visiting this malicious URL, likely to download further malware or engage in phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/free-roblox-cards-pin-number-game-hack In PDF document text
    • https://www.sarsen.net/uploads/files/files/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/roblox-cheat-engine-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/coin-master-gift-link-hack_GM406889139.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/how-to-get-free-robux-using-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/how-to-hack-money-on-tycoons-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/download-the-cheat-tool-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/100-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/weird-roblox_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/free-spins-for-coin-master-hack_GM406889139.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
font_00_sfnt_off000030a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30A5 22348 bytes
SHA-256: 25a2ef03a895607e6100d72496d3fca9605018b21c1f3f8fb237b523b5213419
font_01_sfnt_off0000628c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x628C 19496 bytes
SHA-256: 26f8022740b31f99ec8af4f9d7e2e33f89028674163afa5eede3c1b77efbd679

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