Malicious PDF — malware analysis report

Static analysis result for SHA-256 641f13fa8b03f2d2…

MALICIOUS

PDF

5.3 KB Created: 2021-07-03 22:28:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 93f3266d82bfb53b18043498743d283f SHA-1: d82926941378622a76d9b875c0c54ccaba36a2f6 SHA-256: 641f13fa8b03f2d234810fb0c0de9816597a67c15110a6966743e0458a70b35f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator' or 'game hack' lures. The embedded URLs, such as http://netcdn.tw/app/431946152/roblox-free-robux-codes-2021-game-hack, are designed to trick users into visiting potentially harmful sites. The ML classifier also flagged this PDF as malicious, supporting the assessment of a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8995

Heuristics 3

  • 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.
  • 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/431946152/roblox-free-robux-codes-2021-game-hack In PDF document text
    • https://asiavisiontreks.com/userfiles/files/honest-robux-hack-may-2021_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/500-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/link-coin-master_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/get-robux-com_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/how-to-hack-blox-watch-on-roblox_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/how-to-hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/coin-master-free-spins-2021-blogspot_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/how-to-get-free-robux-2021-inspect-element_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/free-robux-without-survey_GM431946152.pdfIn PDF document text

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