Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7c880dec28f9093…

MALICIOUS

PDF

8.1 KB Created: 2021-07-04 09:14:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d75c74ee5fac3f5fd745dbb5a18a64e1 SHA-1: 77244c238fa88bfa779b76143d6903cdc3a267f2 SHA-256: f7c880dec28f9093fba7cae0c65a103e0a8b6c6d36522937a07f23f2a6ec96fc
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that are explicitly identified as game hack lures. The primary link, http://netcdn.tw/app/406889139/coin-master-hack-apk-35-8-game-hack, is flagged as a redirector to a game hack. This suggests the document's purpose is to trick users into visiting malicious sites, likely for phishing or malware distribution. No scripts were extracted, but the presence of embedded URIs and the ML classifier's high confidence indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9860

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/coin-master-hack-apk-35-8-game-hack PDF link annotation
    • http://library.forda-mof.org/katalog/repository/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-free-2021_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-character-free_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/cpbildco-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/mangocheats-com-hack-coin-master-cheat_GM406889139.pdfIn PDF document text