Malicious PDF — malware analysis report

Static analysis result for SHA-256 4787b657b52b2675…

MALICIOUS

PDF

33.8 KB Created: 2021-06-23 15:19:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-20
MD5: 55b462bc1efa398bf5d32afd9af7def8 SHA-1: 143507af1c3c93b09ad6443d4c62cdbac835fce5 SHA-256: 4787b657b52b26752c5bd8f604883304ea8f75f625350f06b9408040cca32532
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.co/app/431946152/tp-hacks-roblox-game-hack In PDF document text
    • http://lib.smklabor.sch.id/repository/hacking-denisdaily-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/descargar-hacks-para-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/robux-come_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/is-roblox-being-hacked-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-ninja-legends-free-vip-server-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-hack-levels-on-roblox-paintball_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/minecraft-logo-maker-free_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-images_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-hack-into-peoples-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-map_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-www-com_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/app-hack-online-roblox-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-speed-hack-android_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/money-hack-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-get-free-coins-on-robowling-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-dominus-roblox-console_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_off00002e4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E4C 22132 bytes
SHA-256: f3b88630f02e39ed7fbb0593e93fbbaefa62a2cceeed9f04173b8162da0ea3a3
font_01_sfnt_off00005f56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F56 18832 bytes
SHA-256: 650e77a9375584713368e82236728b322c0565fadc08f6528eb094dfc749a04f