Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b676f9d8bf47e09…

MALICIOUS

PDF

34.8 KB First seen: 2026-06-17
MD5: 49ad1cf7b24d58f63cf316082bcb61ab SHA-1: 50a12184dcd21485fb94b94b29bd206704fa8467 SHA-256: 2b676f9d8bf47e09f123c1cfbd29f14795d31b55cd96ddd6a3262b4bb244b656
220 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/406889139/apps-to-hack-coin-master-game-hack In PDF document text
    • http://winnerwater.com.tw/image/data/files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/how-to-hack-on-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/coin-master-link-for-spins_GM406889139.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/minecraft-bedrock-edition-free-with-java_GM479516143.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/roblox-gift-card-codes-2021-free_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/roblox-hack-100-real-no-fake_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/how-to-hack-roblox-no-download-no-survey_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/fly-hack-for-roblox-booga-booga_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/how-to-hack-lucky-blocks-roblox_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/how-to-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/earn-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/how-often-tiktok-free-followers_GM835599320.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/earn-robux-today-earn-robux-today_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/get-old-roblox-free_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/how-to-get-free-robux-on-pc-no-survey_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/how-to-hack-a-roblox-account-with-inspect-element-2021_GM431946152.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
font_00_sfnt_off00003236.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3236 22932 bytes
SHA-256: 888bba6d2d27bc9d94ae1eb5bfc5ac28b69b63a6598afe844372e948eb067b9a
font_01_sfnt_off000065aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65AA 18180 bytes
SHA-256: f0873b9a9a3567aab3602ed3b46c72e29c0674406730caa0d836ec2652e18507

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