Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5dc20341d03c211…

MALICIOUS

PDF

46.7 KB Created: 2021-05-13 05:30:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 8faa7f88e24fa08a98de51cfd42d3fe6 SHA-1: 3d716124f063c250cd7e286e04569ee5dd441468 SHA-256: c5dc20341d03c211e94849d2f84070648883783c17b5d5337f7ce550ec753f8a
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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.xyz/app/431946152/roblox-hackers-list-game-hack In PDF document text
    • https://www.taline.hr/files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.taline.hr/files/microsoft-store-robux_GM431946152.pdfIn PDF document text
    • https://www.taline.hr/files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://www.taline.hr/files/working-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.taline.hr/files/free-robux-link_GM431946152.pdfIn PDF document text
    • https://www.taline.hr/files/300-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.taline.hr/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.taline.hr/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.taline.hr/files/minecraft-ore-finder-mod_GM479516143.pdfIn PDF document text
    • https://www.taline.hr/files/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • https://www.taline.hr/files/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
    • https://www.taline.hr/files/coin-master-70-spin-link_GM406889139.pdfIn PDF document text
    • https://www.taline.hr/files/coin-master-hack-2021-without-human-verification_GM406889139.pdfIn PDF document text
    • https://www.taline.hr/files/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.taline.hr/files/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://www.taline.hr/files/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdfIn PDF document text
    • https://www.taline.hr/files/ro-ghoul-script_GM431946152.pdfIn PDF document text
    • https://www.taline.hr/files/get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.taline.hr/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.taline.hr/files/how-to-hack-roblox-games_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_003_off000047e1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47E1 28796 bytes
SHA-256: 44adfaeab1cc76158ebd6c8a92eceaa1785205ec6c6e6a35b41586ed80016a62
font_01_sfnt_off000089dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89DC 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off0000938c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x938C 18408 bytes
SHA-256: 45c5ba74f98a8c25ccf9e099d511e9a8e2c804404353a175448a141859ab4e90

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