Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2952d4b9ed3ce8b…

MALICIOUS

PDF

7.9 KB Created: 2021-07-05 09:42:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f0089672eaafed413964219efba11411 SHA-1: 527ce81eb4ac194154d4db33fb7ba0fda18fd423 SHA-256: b2952d4b9ed3ce8b8c0fb6c72f4983c7062eade02134a78f9ff2a2b9dfd3423b
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and free currency, directing users to a suspicious URL. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest a phishing or social engineering attempt to redirect users to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9846

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/406889139/how-to-get-free-coins-on-coin-master-game-hack PDF link annotation
    • http://elib.upiyptk.ac.id/opac//repository/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/coin-master-free-spins-and-coins-without-human-verification_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/roblox-hack-week-video_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/free-spin-and-coin-blogspot-com_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/robloxhacks_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/14-de-diciembre-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/roblox-emotes-free_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/free-minecraft-account-and-password-generator_GM479516143.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/how-to-install-minecraft-for-free_GM479516143.pdfIn PDF document text

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