Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd72929c9635c0b2…

MALICIOUS

PDF

41.9 KB Created: 2021-05-16 18:34:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 24efeae80b5e2185e19c243538d79750 SHA-1: 457afddd94639430cc79910aeeac168fcc06401d SHA-256: cd72929c9635c0b26d41cd74b070bf2f1b122f9fe85d6dbee6b0e5c96bb2312f
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/coin-master-hack-com-game-hack In PDF document text
    • https://www.e-starmagazine.com/uploads/files/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/coin-master-free_GM406889139.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/coin-master-card-collection-hack-apk_GM406889139.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/free-800-robux_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/how-to-hack-coin-master-apkmody_GM406889139.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/free-robux-co_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/sb-game-hacker-coin-master_GM406889139.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/roblox-exploit-download_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/hacks-for-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/noob-vs-pro-vs-hacker-vs-god-minecraft_GM479516143.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_off00004a8b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A8B 24508 bytes
SHA-256: 6645292f41b87ec1e8ee72d8d3e45e0519aaccb4caabd8ce3e3c6e5150a36da4
font_01_sfnt_off00008283.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8283 17976 bytes
SHA-256: 45fb09c74bd87b01c52ca74746e6a63f33f4f39ca5a35778be362b225ed307d2

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