Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b68000c65ebb838…

MALICIOUS

PDF

47.6 KB Created: 2021-06-09 13:57:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-17
MD5: fc3a01fd85fa87ee5bab6aaec74837fd SHA-1: f426d91c37097441005756470f3037aaa8131592 SHA-256: 2b68000c65ebb838f488ee401e0f0aae55687cdcafbcdccd42242cd349cce38a
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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.tw/app/431946152/1-million-robux-game-pass-free-game-hack In PDF document text
    • http://lib.fisipumt.ac.id//repository/minecraft-java-edition-free-download-for-android_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-generator-2_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-free-tokens-in-minecraft-ps4_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/send-me-500-2021-spins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-hacks-for-gold-cards_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/make-your-own-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-many-levels-does-coin-master-have_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/download-coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/oprewards-com-earn_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/hack-coin-master-for-android_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/heroes-online-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-really-works_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/where-can-i-get-free-spins-for-coin-master_GM406889139.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_off00004f0b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F0B 24936 bytes
SHA-256: 5039faed0533f2581d76df2a4f3858d57ccd07d018c714d6c7fdb2c9c18482c6
font_01_sfnt_off0000883d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x883D 3928 bytes
SHA-256: 8621c8d502ef3782778d9f8a6275bb869c86817d512651ca4fd19fb1e249c467
font_02_sfnt_off00009522.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9522 19152 bytes
SHA-256: b9a42305a22a6414328050ca6ea36b8992154b25257bde5bb6123f21fc200c3b