Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d5717bbcf03963…

MALICIOUS

PDF

33.9 KB Created: 2021-07-08 20:23:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-27
MD5: c025df9a1b452669b30b81738f9f7041 SHA-1: 60c8dbfbef5bbf2300d72bb75b323e0a5fac05ac SHA-256: c5d5717bbcf0396386041329b11f1b156ce2f102ad94e1720a90878e7d538b49
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.tw/app/479516143/minecraft-alt-accounts-free-game-hack In PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/roblox-bleach-soul-of-end-hack_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/fighting-free-card-coin-master_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/coin-master-free-pin_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/coin-master-hack-2021-app_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/free-to-play-minecraft-servers_GM479516143.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/roblox-piano-hack-download_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/roblox-hack-unlimited-robux-apk-download_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/pokemon-go-free-808_GM1094591345.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/2021-robux-for-free_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/how-to-get-free-robux-2021-ios_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/roblox-sword-hack_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/earn-robux-today_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/minecraft-free-ios_GM479516143.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_off000031fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31FC 21820 bytes
SHA-256: 52f031dcc7afc5566b34f216e96b367363a31918465ca223d4bef92734e811e2
font_01_sfnt_off000061ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61EF 18212 bytes
SHA-256: 79167943b664c57080b7558835257354cfd56d5428e37e62e961791e2f613c27