Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8b1c1b6b6459e0…

MALICIOUS

PDF

48.2 KB Created: 2021-06-03 04:57:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-07
MD5: 466d534ddeecb47a452329d3418c9885 SHA-1: fe7b7a8ff7ae4056ceb7cc790c8444b84a6898b6 SHA-256: aa8b1c1b6b6459e0c774b62544ead23d04d04a2635ad6f825624cee772064b1d
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.online/app/406889139/google-coin-master-free-spins-game-hack In PDF document text
    • http://perpustakaan.pn-temanggung.go.id/repository/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-temanggung.go.id/repository/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-temanggung.go.id/repository/how-can-i-get-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-temanggung.go.id/repository/coin-master-hack-lost-world-2021-com_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-temanggung.go.id/repository/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-temanggung.go.id/repository/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-temanggung.go.id/repository/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-temanggung.go.id/repository/coin-master-hacker-club_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-temanggung.go.id/repository/how-to-get-free-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-temanggung.go.id/repository/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-temanggung.go.id/repository/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-temanggung.go.id/repository/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-temanggung.go.id/repository/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-temanggung.go.id/repository/hack-coin-master-online_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-temanggung.go.id/repository/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-temanggung.go.id/repository/free-money-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-temanggung.go.id/repository/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-temanggung.go.id/repository/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pn-temanggung.go.id/repository/coin-master-working-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-temanggung.go.id/repository/getrobux-info_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005554.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5554 25384 bytes
SHA-256: 3543f93add86e45bf3f7ce9823c7da987101b5df1b409084265343629e6e21f4
font_01_sfnt_off00008fc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FC2 2944 bytes
SHA-256: a0301b7f2c576e4a889a11eed4f4f7770c47239120b218cd3fd1d2cb36c2aaf5
font_02_sfnt_off000099eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99EB 18248 bytes
SHA-256: d32188c22f9df4e49535359cc17236f14c93b7b5c7ebedc8928f30f104243849

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