Malicious PDF — malware analysis report

Static analysis result for SHA-256 566ba476d0a027b8…

MALICIOUS

PDF

20.7 KB Created: 2021-05-11 04:09:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: e3582dbbd22487df7847796e034c5e53 SHA-1: 238575a02284f14cf85c6ca4a94462a17cda36ed SHA-256: 566ba476d0a027b8a3073864eff2b307a8af5816b9ffc193838eaa345b016c8a
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links designed to lure users into believing they can obtain free game currency or hacks. These links redirect to known malicious infrastructure, specifically a URL associated with a 'free generator / game hack' lure. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves social engineering through deceptive content to drive users to potentially malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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 https://netcdn.xyz/app/431946152/make-free-robux-game-hack In PDF document text
    • https://weddingcards-expert.tw/upload/files/blogspot-coin-master_GM406889139.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/was-minecraft-ever-free_GM479516143.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/how-to-get-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/coin-master-hack-version-2021-download_GM406889139.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/coin-master-apk-hack-32_GM406889139.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/coin-master-free-spins-1701-20_GM406889139.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/how-to-get-java-minecraft-free_GM479516143.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/free-roblox-clothes-boy_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/free-minecraft-client_GM479516143.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/minecraft-menu_GM479516143.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/roblox-robux-generator_GM431946152.pdfIn PDF document text

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