Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2a03f66dc348b4d…

MALICIOUS

PDF

41.6 KB Created: 2021-05-14 09:26:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 20dadec45107391db457d966215bc937 SHA-1: a05597171c5798c2e9ee144d7df884641bedb52c SHA-256: a2a03f66dc348b4d2bf00b12ca0c6d3ca00c9d35163c46bd33d5205b4f305c4f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF contains multiple links pointing to known malicious redirector infrastructure, specifically designed to lure users with promises of game hacks or generators. The document body, though heavily obfuscated, contains URLs that align with the heuristic findings of malicious redirector links and game hack lures. The primary malicious URL identified is https://netcdn.xyz/app/406889139/daily-spin-game-hack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/daily-spin-game-hack In PDF document text
    • https://abqyorkrite.org/images/coin-master-free-spin-app-apk_GM406889139.pdfIn PDF document text
    • https://abqyorkrite.org/images/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/how-to-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/weird-roblox_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/get-me-robux_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/lazyblocks-com-robux_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/today-coin-master-spin-free_GM406889139.pdfIn PDF document text
    • https://abqyorkrite.org/images/minecraft-free-reddit_GM479516143.pdfIn PDF document text
    • https://abqyorkrite.org/images/coin-master-hack-unlimited-spins-game-download_GM406889139.pdfIn PDF document text
    • https://abqyorkrite.org/images/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://abqyorkrite.org/images/minecraft-app-store-free_GM479516143.pdfIn PDF document text
    • https://abqyorkrite.org/images/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • https://abqyorkrite.org/images/free-roblox-app_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/give-free-robux_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://abqyorkrite.org/images/coin-master-hack-game-download-mod-apk_GM406889139.pdfIn PDF document text
    • https://abqyorkrite.org/images/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/coin-master-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000047ce.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47CE 25088 bytes
SHA-256: 7e304e17bb563562a99fcb6ce00e0dd5e3b9e46effd685f88b44fa7dc2c0729d
font_01_sfnt_off0000816b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x816B 17896 bytes
SHA-256: f5c28686dcaa6e4f5af5eb824d4c2910815e14a2156f8517a627a86c98a11a8a

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