Malicious PDF — malware analysis report

Static analysis result for SHA-256 74ffcae15908b943…

MALICIOUS

PDF

4.9 KB Created: 2021-07-04 12:42:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: d9da343fd2e5e5ee8b8abfd8e8022632 SHA-1: 5a86d19a92893dbfcdd3f2e796e7e08d4641fc29 SHA-256: 74ffcae15908b94345a97ddef7a32c5481123a31e982c5221f0e1bd6705ec5a7
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links designed to lure users into clicking on what appear to be game hacks and generators. These links redirect to malicious infrastructure, specifically identified as a known redirector. The document body and embedded URLs strongly suggest a phishing or scam attempt, likely to deliver further malware or steal credentials. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9428

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/406889139/coin-master-tricks-and-hacks-game-hack In PDF document text
    • https://lib.btkljogja.or.id/repository/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/dayz-3-beta-roblox-cheats-codes_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-roblox-grouup-bots_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-get-obc-in-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/play-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-northern-frontier-hack_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/btools-hack-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/cheats-for-roblox-for-money_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-dto-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/hack-xp-net-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-free-robux-in-roblox-2021_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-spins-coin-master-links-twitter_GM406889139.pdfIn PDF document text

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