Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ddaf18dcefb8ce9…

MALICIOUS

PDF

34.5 KB Created: 2021-06-27 22:00:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-26
MD5: c03d886c5d3bd51046938e2254a41b3d SHA-1: 13868c39071b0e46a6cdc53e57023a3587184510 SHA-256: 3ddaf18dcefb8ce9ae6b35c665cff4a8c255057fa6e6395dc49312e2e105d518
200 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.co/app/431946152/hacking-roblox-items-game-hack In PDF document text
    • https://c2o-library.net/catalog/repository/instan-kill-boss-hack-script-dungeon-quest-roblox_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/moonactive-coin-master_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-free-daily-rewards_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-3d-roblox-gun-models_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/getrobux-ninja_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/hacked-my-instagram-roblox-id_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-needs-password_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-obby_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/hack-robux-ohne-cheat-engine_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/redeem-gift-card-roblox-free_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-free-robux-hack_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_off00002dfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DFB 22964 bytes
SHA-256: a02d72a548c2443ef2b88c7dd04497e183dc8519e3f0f223a8447752c6f3d900
font_01_sfnt_off000061ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61AC 19140 bytes
SHA-256: 89d6eaf8c2592543860d4e3b416f2c67394c6e1748a5e5cf30e2bd98be1d449c

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