Malicious PDF — malware analysis report

Static analysis result for SHA-256 2019a22cd001d93c…

MALICIOUS

PDF

1.4 KB Created: 2021-05-13 05:38:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-23
MD5: fa077fc1f9227e77cd1ed3e2dcee6077 SHA-1: f131de94f5434fb8b15bc08436f6fd40bde0c94c SHA-256: 2019a22cd001d93c2a3ffe2676b8c0de5f0d9863e055a46a0f7c4609a389aa4f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a link that redirects to a "free generator / game hack" lure, which is a common tactic for phishing or malware distribution. The ML classifier also flagged the PDF as malicious. While no scripts were extracted, the embedded URL is a critical indicator of malicious intent, likely serving as a gateway to further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9146

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.xyz/app/406889139/coin-master-free-spins-links-app-game-hack In PDF document text

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