Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7b5c6f45d5eed8…

MALICIOUS

PDF

33.4 KB Created: 2021-06-18 04:22:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 4fdb8748e2b287b1a859678045269de4 SHA-1: 6d6d2fd4e6f4a46a30ba784515650ad74d007dcf SHA-256: cd7b5c6f45d5eed8643808049e893c5da9b1e2174becf4e41e0b3eda67382d9d
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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.co/app/431946152/how-to-get-admin-on-roblox-with-cheat-engine-game-hack In PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/javascript-roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/code-roblox-free-items_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/coin-master-hack-pro_GM406889139.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-free-badges-game_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/noclip-roblox-cheat-engine-2021_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/is-there-a-way-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/hack-coin-master-download_GM406889139.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-us-robux_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/gaming-dunia-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/we-hack-com-robux_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/coin-master-free-spins-link-deutsch-ios_GM406889139.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-roblox-pikachu_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-verification_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-free-play_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/daily-coin-master-free-spins_GM406889139.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_off00002a2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A2A 22500 bytes
SHA-256: e2b7d079867af104fde0f04ea678509dd736a6617f80483a6c56010e602a2a22
font_01_sfnt_off00005be7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE7 19672 bytes
SHA-256: 365ef2d8874843a4e79f607c66c80e56581997f0a3ae52c52fea7b7ac07aaa17

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