MALICIOUS
240
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links to external resources, including a known malicious redirector at http://netcdn.co/app/406889139/coin-master-free-codes-game-hack. The document body and heuristics indicate a lure for game hacks and free items, suggesting a phishing or malware distribution attempt. The malformed stream length heuristic indicates potential exploitation of PDF vulnerabilities.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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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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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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.co/app/406889139/coin-master-free-codes-game-hack In PDF document text
- https://s4sbrochure.org.uk/admin/ckfinder/userfiles/files/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://s4sbrochure.org.uk/admin/ckfinder/userfiles/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
- https://s4sbrochure.org.uk/admin/ckfinder/userfiles/files/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
- https://s4sbrochure.org.uk/admin/ckfinder/userfiles/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
- https://s4sbrochure.org.uk/admin/ckfinder/userfiles/files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
- https://s4sbrochure.org.uk/admin/ckfinder/userfiles/files/lastrick-com-coin-master-hack_GM406889139.pdfIn PDF document text
- https://s4sbrochure.org.uk/admin/ckfinder/userfiles/files/coin-master-hack-apk-ios-download_GM406889139.pdfIn PDF document text
- https://s4sbrochure.org.uk/admin/ckfinder/userfiles/files/how-to-get-free-minecraft-coins_GM479516143.pdfIn PDF document text
- https://s4sbrochure.org.uk/admin/ckfinder/userfiles/files/free-robux-images_GM431946152.pdfIn PDF document text
- https://s4sbrochure.org.uk/admin/ckfinder/userfiles/files/hack-coin-master-app_GM406889139.pdfIn PDF document text
- https://s4sbrochure.org.uk/admin/ckfinder/userfiles/files/pokemon-go-free-remote-raid-pass-march-2021_GM1094591345.pdfIn PDF document text
- https://s4sbrochure.org.uk/admin/ckfinder/userfiles/files/how-to-play-roblox-for-free_GM431946152.pdfIn PDF document text
- https://s4sbrochure.org.uk/admin/ckfinder/userfiles/files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://s4sbrochure.org.uk/admin/ckfinder/userfiles/files/woman-roblox_GM431946152.pdfIn PDF document text
- https://s4sbrochure.org.uk/admin/ckfinder/userfiles/files/minecraft-server-free-trial_GM479516143.pdfIn PDF document text
- https://s4sbrochure.org.uk/admin/ckfinder/userfiles/files/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
- https://s4sbrochure.org.uk/admin/ckfinder/userfiles/files/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
- https://s4sbrochure.org.uk/admin/ckfinder/userfiles/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://s4sbrochure.org.uk/admin/ckfinder/userfiles/files/free-robux-instantly_GM431946152.pdfIn PDF document text
- https://s4sbrochure.org.uk/admin/ckfinder/userfiles/files/coin-master-free-spins-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.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00003032.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x3032 | 22712 bytes |
SHA-256: 73436a1ca9aa622b3ff6c479f51ea1a6055983dc156016f2903044131c37cc74 |
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font_01_sfnt_off0000630e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x630E | 18172 bytes |
SHA-256: da47515c3b4c9ce74a6a7925be58a2cec6625ddcee19f7c3d533689243930cbf |
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