Malicious PDF — malware analysis report

Static analysis result for SHA-256 823a11206008eebb…

MALICIOUS

PDF

16.1 KB Created: 2021-06-08 14:28:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9f387a8145cbe7e65a20403b3cbc12aa SHA-1: 805bf38bf44084e5ad7bb7d77e167ef0f2b668c9 SHA-256: 823a11206008eebbb200e66618840acdd4b583b9ba97bb0e44fc3dcada3f3d91
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising free game currency and hacks. The primary lure URL is https://netcdn.tw/app/431946152/conseguir-robux-gratis-hack-game-hack, which is designed to trick users into clicking through to potentially harmful content. The document body, though heavily obfuscated, contains references to this lure and other similar URLs hosted on moskewicz.com.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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.tw/app/431946152/conseguir-robux-gratis-hack-game-hack In PDF document text
    • http://moskewicz.com/images/coin-master-hack-ios_GM406889139.pdfIn PDF document text
    • http://moskewicz.com/images/coins-master_GM406889139.pdfIn PDF document text
    • http://moskewicz.com/images/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
    • http://moskewicz.com/images/free-robux-just-click_GM431946152.pdfIn PDF document text
    • http://moskewicz.com/images/hacker-texting-simulator-simulator-roblox-code_GM431946152.pdfIn PDF document text
    • http://moskewicz.com/images/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://moskewicz.com/images/pubg-uc-2021_GM1330123889.pdfIn PDF document text
    • http://moskewicz.com/images/free-robux-no-verification-or-offers_GM431946152.pdfIn PDF document text
    • http://moskewicz.com/images/coin-master-hacks-to-get-spins_GM406889139.pdfIn PDF document text
    • http://moskewicz.com/images/pokemon-go-free-accounts-2021_GM1094591345.pdfIn PDF document text
    • http://moskewicz.com/images/download-hacked-games-roblox_GM431946152.pdfIn PDF document text
    • http://moskewicz.com/images/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://moskewicz.com/images/robux-download_GM431946152.pdfIn PDF document text
    • http://moskewicz.com/images/roblox-girl-avatar_GM431946152.pdfIn PDF document text

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