Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2cf717db2e5c26…

MALICIOUS

PDF

33.9 KB Created: 2021-07-02 00:54:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-21
MD5: e95f4d3f0c3cd06d6b9f75c7c040d3a2 SHA-1: 4693d1b82fa53eba2176f987205d097d0edfb49a SHA-256: af2cf717db2e5c26248d0cb1e99e95404e14000fedc92decae375e0db0491777
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.co/app/431946152/roblox-com-roblox-play-now-for-free-game-hack In PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-spins-hacktman_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-get-free-robux-no-human-verification-on-laptop_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-get-free-robux-banana-website_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-download_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-we-get-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-get-free-roblox-premium_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-hack-com_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-aimbot-cheat-engine_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-minecraft-skins-girl_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/animation-pack-roblox-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-hack-merder-mistery-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/i-caught-my-mom-cheating-in-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-spins-gratis_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/hacks-for-camping-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/real-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-buy-stuff-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/is-there-a-free-version-of-minecraft_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-hack-dragon-ball-rage-roblox-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_off00002eba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EBA 21516 bytes
SHA-256: c5cccd6ffc7a2a0d13e647238710d4187a90197296f19d09c1d84e4ddda8b87e
font_01_sfnt_off00005df7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF7 19464 bytes
SHA-256: 7324836145f8043416fe812104bf893f33c9fb3360efdf22451e859cf406ad76

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