Malicious PDF — malware analysis report

Static analysis result for SHA-256 f142a2cf18fe85e6…

MALICIOUS

PDF

12.1 KB Created: 2021-07-19 09:02:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: d32576d28c86b4e1aa5e35c7b4bc7043 SHA-1: 2e3f71a2d1b9c28d67776bb25fdbc2b022544bf8 SHA-256: f142a2cf18fe85e6ee3eff22fb954a2b1d36fca3c324b6a941584956347ac033
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 0.8767

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/479516143/how-do-you-get-minecraft-for-free-game-hack PDF link annotation
    • http://srisaket.nfe.go.th/UserFiles/File/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • http://srisaket.nfe.go.th/UserFiles/File/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
    • http://srisaket.nfe.go.th/UserFiles/File/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • http://srisaket.nfe.go.th/UserFiles/File/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text