Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ba1a87521c02787…

MALICIOUS

PDF

15.6 KB Created: 2021-05-25 11:00:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 33bc0e1641ef27611935f173ddbd0cf3 SHA-1: 4ec5e203ea65e668b6e1fb82d17f68d92eb76f1f SHA-256: 8ba1a87521c0278782e0af220d09f6916619261274a6b441848e62386d6a25a0
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 0.9063

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 https://netcdn.xyz/app/406889139/coin-master-free-spins-link-today-facebook-game-hack PDF link annotation
    • http://apartmani-mestrovic-krk.hr/files/how-to-hack-mcpe-master-coins_GM406889139.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/pubg-uc-deducted_GM1330123889.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text