Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e11723840f4798…

MALICIOUS

PDF

33.0 KB Created: 2021-07-05 20:51:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-20
MD5: 3d8f22d8dbe6de7939b1eb8c12be1d5b SHA-1: 01e0794d2ab02e9d0f941789980adf046047032b SHA-256: d3e11723840f4798a32eed183947aa2052e4d4a6a03357920fe9fef6c4692981
160 Risk Score

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/406889139/free-coin-master-spins-game-hack In PDF document text
    • https://fib.ub.ac.id/sac/repository/how-to-get-the-antine-villa-roblox-free_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-roblox-com_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-hacks-to-get-in-people-acounts_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/labyrinth-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/best-free-hacked-client_GM479516143.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-free-login-and-password_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/lockview-hack-roblox_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/2021-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/cheat-robux-roblox-2021-free_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/apk-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/robux-free-2021_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-download-pc-free_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-to-get-free-robux-no-phone-number_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/tiktok-free-comments_GM835599320.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_off00002ce2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE2 22296 bytes
SHA-256: 9615713664cbcfc5f863dbceb220c2ec622da79198be2fab8bd84560fdd65a8f
font_01_sfnt_off00005e89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E89 18176 bytes
SHA-256: d879af8bc9fc9deb269bc048f5c37c8554bb873823b666d5fc770bf8781c9e47

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