Malicious PDF — malware analysis report

Static analysis result for SHA-256 445297acfceaa7bb…

MALICIOUS

PDF

33.1 KB Created: 2021-06-26 18:14:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-07
MD5: ddec257d0d8c1b5c7c52d0c056790e61 SHA-1: 41ccc2a7b5fbd153dd14cd5591d8281a74037918 SHA-256: 445297acfceaa7bb3983c9e89cfdde59c458fa6cf81f1b1bdbcac59dc7af385d
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/kick-players-roblox-hack-game-hack In PDF document text
    • https://library.iuli.ac.id/repository/free-chest-coin-master_GM406889139.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/free-group-roblox_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/roblox-hacked-version_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/coin-master-bonus_GM406889139.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/coin-master-free-spins-link-no-verification_GM406889139.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/download-roblox-pc-hack_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/murder-mystery-free-code-knife-games-roblox_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/cch-ly-robux-free_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/server-for-pubg-uc_GM1330123889.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/coin-master-free-spins-2021-app_GM406889139.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/roblox-the-hood-hacks-2021_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/optifine-pe_GM479516143.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/20210-robux_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/roblox-how-to-get-free-money-in-jailbreak_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_off00002a96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A96 22416 bytes
SHA-256: 36558d7352947b334c3723b4730c05c90785b201ba96a45258d9012dca986d8b
font_01_sfnt_off00005c70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C70 19108 bytes
SHA-256: d5b189a79066764aa6400c9018ae795705ea63fd232cd9b3720a843605de0436

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