MALICIOUS
180
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a malformed stream and links to a known malicious redirector infrastructure disguised as a game hack. The ML classifier strongly indicates maliciousness. The document body and embedded URLs suggest a lure for game-related cheats, likely leading to further malicious content or downloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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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 http://netcdn.tw/app/406889139/coin-master-hack-online-pc-game-hack In PDF document text
- https://nhaphangjapan.vn/public/upload/files/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/can-you-use-cheat-engine-in-2021-roblox_GM431946152.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/static-moonactive-net-rewards-2021_GM406889139.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/coin-master-free-spins-16-04-19_GM406889139.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/roblox-hack-no-survey-2021_GM431946152.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/how-to-get-free-robux-by-roblox_GM431946152.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/javascript-code-roblox-hack_GM431946152.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/free-roblox-accountws_GM431946152.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/roblox-jailbreak-cheat-codes-and-hacks-for-samsung_GM431946152.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/free-animation-roblox-studio_GM431946152.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/how-to-get-2021-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/free-roblox-redeem-codes-that-haven-39_GM431946152.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/hack-de-robux-funcionando-2021-100-para-hacer-bromas_GM431946152.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/boombox-backpack-free-roblox_GM431946152.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/hack-menus-for-roblox_GM431946152.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/how-to-hack-someones-minecraft-account_GM479516143.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_002_off00003241.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x3241 | 23316 bytes |
SHA-256: 5cc5ba6ff8025e97a7f6b71492712f76205c0448a4f66b99c48a788532b29656 |
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font_01_sfnt_off000066e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66E8 | 18232 bytes |
SHA-256: 2e126d135fd472f17e04e2c2670c366e67c2359c8a974fc9d6678d50609a09dc |
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