Malicious PDF — malware analysis report

Static analysis result for SHA-256 65b9dd86cd52365e…

MALICIOUS

PDF

2.6 KB Created: 2021-07-01 13:40:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 8753f238182b3bac2e898124b327312a SHA-1: 95f500512f38fb82873ac17bbe50087e8badf0b0 SHA-256: 65b9dd86cd52365e2f46769dd650154bd4ead3e03a426fecdadc93b4dd49a4d9
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, one of which redirects to malicious infrastructure associated with game hacks and cheats. The document body and embedded links strongly suggest a lure to download potentially unwanted or malicious software. No scripts were extracted, but the PDF structure and embedded URLs indicate a social engineering tactic to trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

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/descargar-roblox-hackeado-robux-infinitos-game-hack In PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-pc-hack_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-super-jump-cheat-engine_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-exploits-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/300-daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-stream-roblox_GM431946152.pdfIn PDF document text

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