Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d38394c3822e8d0…

MALICIOUS

PDF

35.2 KB Created: 2021-06-20 00:03:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-14
MD5: fc3a30bd3eb18a99befcbca6317db023 SHA-1: 811203aedd8cb7429dcde5c07a3befd779a9c665 SHA-256: 0d38394c3822e8d07093d686c6a196589ea60e1dbf660564f6ca79458a175fa8
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-robux-no-scams-no-verification-just-username-and-amount-game-hack In PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/how-to-make-a-free-server-in-minecraft-java_GM479516143.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/hack-roblox-gratuito_GM431946152.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/keyon-air-hack-is-model-roblox_GM431946152.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/optifine-mcpe_GM479516143.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/how-do-you-get-robux-for-free-on-laptop_GM431946152.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/roblox-dashing-simulator-hack_GM431946152.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/free-likes-for-tiktok_GM835599320.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/2021-free-robux-hacks_GM431946152.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/free-robux-today_GM431946152.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/i-want-free-robux_GM431946152.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/free-roblox-followers_GM431946152.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/how-to-get-minecraft-bedrock-for-free-with-java_GM479516143.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/free-coin-master-account_GM406889139.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/cute-free-roblox-clothes_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_off0000326b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x326B 21944 bytes
SHA-256: 4477f8dd5ca2b652b38b3b722da3f402ec1c5539bdc6b9568ef9af3fcdd38baa
font_01_sfnt_off000062a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A7 19676 bytes
SHA-256: b1041a6b12b08e79f068098028f6bb10e2503d6b895f5fd596947c384fe5bddc

Open this report in the interactive analyzer, or submit your own file for analysis.