Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8569873d39b3ec…

MALICIOUS

PDF

40.0 KB Created: 2021-04-25 17:12:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-06
MD5: f5026d375a817deafa3cf0a0060ad4ec SHA-1: 69fc8774a51aa9038a8b48bbad60f22435b636fd SHA-256: aa8569873d39b3ec5d413a1ba81004759bdc510f0caaf4a67ae7c6d0354e9247
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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-get-free-robux-obby-game-hack In PDF document text
    • http://repository.poliven.ac.id/repository/free-rthro-roblox.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/gravity-switch-hack-roblox-2021.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/roblox-hack-script-ihyper.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-roblox-gift-card-number.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/how-to-get-free-robux-using-roblox-hack-tool.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/roblox-hack-2021-jailbreak.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/roblox-ss-executor-free-v3rmillion.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/descargar-hack-de-robux-para-roblox-2021.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/roblox-speed-hack-june-1-2021.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/get-friends-on-roblox-for-free.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
stream_003_off0000420e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x420E 24544 bytes
SHA-256: ae64cf0cbf02b88bb85533f2238704cbd4f2fa61acca563796f756616d0134bc
font_01_sfnt_off00007a1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A1F 18372 bytes
SHA-256: 8190d046e3a67b9f4ccf9f326e9662f9086c3e4bdd99b102debc3d4a594e1f10