MALICIOUS
188
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document contains embedded JavaScript and a critical heuristic firing for a malicious redirector link. The document body and heuristics indicate a lure for game hacks or cheats, directing users to the URL http://netcdn.co/app/406889139/how-to-get-free-spins-on-coin-master-game-hack. This link is known to lead to malicious infrastructure, likely to serve a second-stage payload or facilitate phishing. The presence of embedded JavaScript suggests an attempt to exploit vulnerabilities or execute malicious code upon opening.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
Heuristics 6
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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.co/app/406889139/how-to-get-free-spins-on-coin-master-game-hack In PDF document text
- https://www.johnofrolleston.com/admin/ckfinder/userfiles/files/coin-master-unlimited-spin-link_GM406889139.pdfIn PDF document text
- https://www.johnofrolleston.com/admin/ckfinder/userfiles/files/free-robux-no-generator_GM431946152.pdfIn PDF document text
- https://www.johnofrolleston.com/admin/ckfinder/userfiles/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.johnofrolleston.com/admin/ckfinder/userfiles/files/roblox-free-robux_GM431946152.pdfIn PDF document text
- https://www.johnofrolleston.com/admin/ckfinder/userfiles/files/hacks-master-coin_GM406889139.pdfIn PDF document text
- https://www.johnofrolleston.com/admin/ckfinder/userfiles/files/free-robux-please_GM431946152.pdfIn PDF document text
- https://www.johnofrolleston.com/admin/ckfinder/userfiles/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
- https://www.johnofrolleston.com/admin/ckfinder/userfiles/files/get-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.johnofrolleston.com/admin/ckfinder/userfiles/files/how-to-get-free-likes-and-followers-on-tiktok_GM835599320.pdfIn PDF document text
- https://www.johnofrolleston.com/admin/ckfinder/userfiles/files/coin-master-unlimited-free-spins_GM406889139.pdfIn PDF document text
- https://www.johnofrolleston.com/admin/ckfinder/userfiles/files/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
- https://www.johnofrolleston.com/admin/ckfinder/userfiles/files/roblox-hacked-version-apk_GM431946152.pdfIn PDF document text
- https://www.johnofrolleston.com/admin/ckfinder/userfiles/files/roblox-studio-free_GM431946152.pdfIn PDF document text
- https://www.johnofrolleston.com/admin/ckfinder/userfiles/files/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.johnofrolleston.com/admin/ckfinder/userfiles/files/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
- https://www.johnofrolleston.com/admin/ckfinder/userfiles/files/minecraft-free-exe_GM479516143.pdfIn PDF document text
- https://www.johnofrolleston.com/admin/ckfinder/userfiles/files/coin-master-hack-com_GM406889139.pdfIn PDF document text
- https://www.johnofrolleston.com/admin/ckfinder/userfiles/files/earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.johnofrolleston.com/admin/ckfinder/userfiles/files/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.johnofrolleston.com/admin/ckfinder/userfiles/files/how-to-buy-robux-for-free_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_002_off000031c9.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x31C9 | 22532 bytes |
SHA-256: 361c3a0f1361ba278800eb8cf37f20353004859926d7f990c2281fe2ccee71b2 |
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font_01_sfnt_off0000639f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x639F | 18336 bytes |
SHA-256: f6486e4c00d3cdc8b5d1192946ddbf803be47e84f44f52a8e54ea271a052a700 |
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