Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b1b230e847e1782…

MALICIOUS

PDF

2.6 KB Created: 2021-07-02 05:03:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: f18bc3c905365fa5a12cb0aa1fa22a22 SHA-1: ea3a6c31377e92bcd879c40778f6fdf63d823aae SHA-256: 9b1b230e847e1782bcef09d6c074e72b8a35fdc365f16fad44da580ee1c244ba
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one identified as a malicious redirector, designed to lure users with promises of game hacks and free items. The primary malicious link is http://netcdn.co/app/431946152/free-boho-salon-roblox-application-game-hack, which is part of a known malicious redirector infrastructure. The document body and embedded URLs suggest a phishing attempt related to popular games and applications.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9905

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 http://netcdn.co/app/431946152/free-boho-salon-roblox-application-game-hack In PDF document text
    • http://www.valenciamaids.com/userfiles/files/free-roblox-gear_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/how-to-get-free-coins-on-tiktok_GM835599320.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/how-to-free-robux-no-hack_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/minecraft-wurst-client_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/hack-client_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/how-to-make-a-free-server-in-minecraft-java_GM479516143.pdfIn PDF document text

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