MALICIOUS
220
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external files, many of which are likely part of a link farm designed to attract traffic. One prominent URL, https://netcdn.xyz/app/406889139/free-spin-coin-master-link-2021-game-hack, is identified as a malicious redirector. The document body and heuristics suggest a lure related to game hacks and free currency, aiming to trick users into clicking these links. No scripts were extracted, but the extensive linking and redirector usage indicate a malicious intent to lead users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9969
Heuristics 5
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PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LUREPDF'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.
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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Embedded URL info EMBEDDED_URLOne 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/free-spin-coin-master-link-2021-game-hack In PDF document text
- http://achauco.vn/public/upload/files/roblox-promo-codes-2021-robux_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
- http://achauco.vn/public/upload/files/coin-master-hack-tips_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/coin-master-hack-app-android-download_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/minecraft-java-edition-free-download-for-android_GM479516143.pdfIn PDF document text
- http://achauco.vn/public/upload/files/coin-master-free-spins-link-iphone_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/coin-master-hack-download-ios_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/roblox-login-hack_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
- http://achauco.vn/public/upload/files/free-rewards-coin-master_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/coin-master-hack-club_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/coin-master-hack-tool-generator_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/download-coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/mangocheats-com-hack-coin-master-cheat_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
- http://achauco.vn/public/upload/files/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/free-roblox-accounts-with-robux_GM431946152.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.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_003_off00004d9e.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x4D9E | 24820 bytes |
SHA-256: f4e7dafa1434fc48df5362a38e41e585f70c098d34d32d781a30faf6a0c89300 |
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font_01_sfnt_off00008740.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8740 | 18456 bytes |
SHA-256: e9900cc34792e9e10189734f2c0a95be85fa7d2c8d6cb23872c5da80ce816735 |
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