Malicious PDF — malware analysis report

Static analysis result for SHA-256 445b07d8e3b107b2…

MALICIOUS

PDF

35.1 KB Created: 2021-06-28 20:18:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-11
MD5: 25d2ff81e6142e95399c9e2c293f4f36 SHA-1: e5f83ba944e4cbaf9decf9ba7e2a27e8753e94b2 SHA-256: 445b07d8e3b107b21321397c14340b1d8657eef343f037889ed216d6f0f0cc14
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/free-roblox-executor-2021-stable-no-crash-game-hack In PDF document text
    • https://opac.itp.ac.id/repository/robux-hack-2021-creado-por-hackdejuegosapk-roblox-tm_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/games-that-have-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/roblox-hack-no-human_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/como-hackear-cualquier-juego-de-roblox-2021_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-spin-and-daily-news-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/roblox-hacker-tshirts-images_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/hackeado-net-roblox_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-h-robux-game_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/how-to-hack-coin-master-using-es-file_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/roblox-a_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/pokemon-go-free-83_GM1094591345.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/cheats-for-mm2-roblox_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/the-most-opiest-script-hack-in-roblox_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/ahjefhz-roblox-hack_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/how-to-get-free-robux-2021-no-downloading_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_off0000307f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x307F 22476 bytes
SHA-256: 1486cf0ab44cb6668ece9707a599b19826b27975f70032268820597f586c6169
font_01_sfnt_off000062c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C4 19464 bytes
SHA-256: 48e8c89eb7eaf6408e8dea8e63bb6585fc19a0822796c41da1ad12eff754df7e

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