Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cf960d37b57f718…

MALICIOUS

PDF

5.6 KB Created: 2021-07-06 18:46:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 98c50abfeec5522cd51765199b575311 SHA-1: 03bdea022226d8a85bfb2a0d7ed60f88b7a84ad7 SHA-256: 5cf960d37b57f71874f2d33973f430b78722baf4c01cad7f2d5e52d31612e0b1
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 0.9920

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 http://netcdn.tw/app/431946152/how-to-hack-someones-roblox-account-2021-game-hack PDF link annotation
    • http://oca.undil.tl/repository/coin-master-free-spins-cheat-codes_GM406889139.pdfIn PDF document text
    • http://oca.undil.tl/repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://oca.undil.tl/repository/how-to-get-everything-free-on-the-roblox-catalog_GM431946152.pdfIn PDF document text
    • http://oca.undil.tl/repository/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://oca.undil.tl/repository/how-do-you-get-free-robux-and-tix-on-roblox_GM431946152.pdfIn PDF document text
    • http://oca.undil.tl/repository/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://oca.undil.tl/repository/how-do-you-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://oca.undil.tl/repository/level-coin_GM406889139.pdfIn PDF document text
    • http://oca.undil.tl/repository/roblox-dominus-free-2021_GM431946152.pdfIn PDF document text
    • http://oca.undil.tl/repository/roblox-fly-hack-download-free_GM431946152.pdfIn PDF document text
    • http://oca.undil.tl/repository/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text

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