MALICIOUS
200
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document contains a lure for a "free generator" and displays a fake CAPTCHA to trick users into interacting with malicious links. The embedded URL `https://netcdn.xyz/app/406889139/free-pet-food-for-coin-master-game-hack` is identified as a known malicious redirector. The document body also contains numerous links to other PDF files hosted on `achauco.vn`, suggesting a potential chain of malicious downloads or redirects.
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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Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHADocument displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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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-pet-food-for-coin-master-game-hack In PDF document text
- http://achauco.vn/public/upload/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/free-roblox-groups-with-funds_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/minecraft-bedrock-edition-pc-free_GM479516143.pdfIn PDF document text
- http://achauco.vn/public/upload/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/free-online-spins-coin-master_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/how-to-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/minecraft-bedrock-client_GM479516143.pdfIn PDF document text
- http://achauco.vn/public/upload/files/can-i-hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/free-robux-thumbnail_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/robux-games_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/robux-converter_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/coin-master-hack-review_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/free-robux-pins_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/robux-xyz_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/robux-free-c_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
- http://achauco.vn/public/upload/files/free-robux-promo-codes-2021_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_off00004b43.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x4B43 | 29816 bytes |
SHA-256: 2d3a6275f821398f6fff21875db68d16e8f6e6978a59994e4fd7210a1f7780c8 |
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font_01_sfnt_off00008aca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8ACA | 18040 bytes |
SHA-256: 80b08f0f47efeae7474973f213c4bda075b9244837f94a62dadeca22caed91d8 |
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