Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4fe4a1db7400d2b…

MALICIOUS

PDF

2.6 KB Created: 2021-07-05 23:43:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4c91a189e1ed1ea5936ad4d001e8bcb0 SHA-1: b17513cfe352ab3a671b574a5927f38f0c64a7b1 SHA-256: e4fe4a1db7400d2b7d1fa8e17d4f32c0b34b915fac1bfb1ed3f51d9ec101cd87
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a lure for free game currency, identified as a common social engineering tactic. The ML classifier strongly indicated maliciousness, and the presence of external URIs suggests a phishing or credential harvesting attempt. No scripts were extracted, but the document's structure and embedded links are indicative of a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9905

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/robloxmatchcom-free-robux-game-hack PDF link annotation
    • http://www.library.gkigadingserpong.org/repository/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/coin-master-free-spins-iphone_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/regular-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/game-hunters-coin-master_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/how-to-get-free-spins-on-coin-master-2021-links_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.