Malicious PDF — malware analysis report

Static analysis result for SHA-256 941e0fc413df2df7…

MALICIOUS

PDF

34.5 KB Created: 2021-07-05 11:32:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-12
MD5: c21b7ef6acd6967f97fe4770c71299a1 SHA-1: d0db683e33c0d66e12a190f123b0c9e4208cf971 SHA-256: 941e0fc413df2df7e7a6971d1cff027cf6772e1145c6c48c3eae232d4416bb38
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/406889139/coin-master-free-mighty-lion-card-game-hack In PDF document text
    • https://lib.unitri.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/instagram-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-roblox-game-card_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/infinitejump-hack-roblox_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/get-free-lives-on-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/free-robux-link_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/2021-roblox-hacks-ispect_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-file-for-hack_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/hack-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/mcpe_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-assassin-hacks_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/freerobux-co_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/how-to-get-free-robux-without-email_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_off0000317e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x317E 22448 bytes
SHA-256: 93413f881e6e02ab44dc998066806d904138c2ee5334da2b5aa2e7f45d371024
font_01_sfnt_off00006377.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6377 18520 bytes
SHA-256: ee4afec022b53e314ef343abdfcb22d72a8c9dbbca4620ae26692d0cd1c018f4

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