Malicious PDF — malware analysis report

Static analysis result for SHA-256 78205c55e529ae69…

MALICIOUS

PDF

33.5 KB Created: 2021-06-26 08:48:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-16
MD5: 0bd8e86b3d28c77d09cc2c2e63acbeee SHA-1: 7e82341023fce55f54ecc1fdb3c89a6acb796b3d SHA-256: 78205c55e529ae692a8036eb0d9fabde2393cc9498ab47e264a7330636cd25ae
220 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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-accounts-for-work-scam-roblox-game-hack In PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/dbr-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-change-your-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/hack-in-roblox-to-unlock-elemental-dragon_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/hack-de-roblox-para-tener-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-get-free-robux-no-verifying_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-get-free-robux-without-human-verification-on-ios_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/free-robux-gift-card-may-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-get-free-gear-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/free-robux-download_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/roblox-cb-ro-hack-download_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/good-codes-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/hacking-code-text-chat-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/roblox-robux-hack-mod_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/get-free-robux-without-getting-apps_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/roblox-how-to-get-the-animal-hoodies-free_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/free-roblox-exploit-level-7-olimpois_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/best-way-to-make-free-robux-2021_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_off00002c04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C04 22040 bytes
SHA-256: 475ddc87ada23e0718531e8ccd1bccf30b988b4f94b7ea42ec0ae7966fe52648
font_01_sfnt_off00005cae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CAE 19520 bytes
SHA-256: 65ef7e24083cb40419a75b05d6ecdc047ff5467554375c231a552bbc8bb327e2

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