Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c07bce4c74a54d1…

MALICIOUS

PDF

13.4 KB Created: 2021-06-03 13:51:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 7d85ca8b7f83f1ef4b4c4edbfdc9d2a9 SHA-1: 9a0dd30d3c698a6f0026b8b9b54ee02a8617fd1f SHA-256: 0c07bce4c74a54d187d6a49130d81af55a8bf5132d90534607ecc5ed03fa0ebf
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that lead to known malicious redirector infrastructure, specifically advertising a 'robux hack no human verification'. The document body, though partially garbled, also contains similar lure text and URLs. The presence of these links and the lure strongly suggests a phishing or scam attempt designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9630

Heuristics 3

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.online/app/431946152/robux-hack-no-human-verification-game-hack In PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/cIn PDF document text

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