Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b1307473cc90909…

MALICIOUS

PDF

41.1 KB Created: 2021-07-06 21:10:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 56e1b6e32e5ca11013b5dcd4b4ba5f0c SHA-1: 178c9f5e3b2b84f984d35b514a6f2194b38b35ce SHA-256: 0b1307473cc909099cb0dbfd8c5ab465d50b037443479449eacd35f8d9149967
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a link that redirects to a URL advertising a game hack, which is a common lure for phishing or malware distribution. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6250

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/1330123889/pubg-uc-18-game-hack PDF link annotation