Malicious PDF — malware analysis report

Static analysis result for SHA-256 f387a2a8148f20e4…

MALICIOUS

PDF

24.8 KB Created: 2021-06-11 06:26:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 89054cef061f74c5330e3928433792f2 SHA-1: f642a05e8e42b9a6cf57ebf6f9bc3da2868a41e9 SHA-256: f387a2a8148f20e4646537e82077ea4e200d5ee421851e30d8df0bca9373a5cc
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 3

  • PDF links to a 'free generator / game hack' redirector high 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/games-like-roblox-but-better-and-free-game-hack PDF link annotation
    • http://lib.untad.ac.id/repository/is-minecraft-free-on-switch_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-do-i-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/how-many-levels-are-there-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/a-real-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/freegames911com-coinmastertipsandcheats2021freecoinsandspins_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/roblox-avatar-free_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-roblox-svg_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-robux-on-united-kingdom_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-free-coins-spins_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-hack-any-player-in-roblox_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/camisetas-de-hacker-para-crear-en-roblox_GM431946152.pdfIn PDF document text