MALICIOUS
160
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains multiple embedded URLs and a prominent call-to-action for 'Coin Master Free Spins 2021', which is a common lure for scams. The primary URL, http://netcdn.tw/app/406889139/coin-master-free-spins-2021-game-hack, is flagged as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or malware distribution attempt, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
Heuristics 4
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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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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-free-spins-2021-game-hack In PDF document text
- http://www.myresidence.lu/userfiles/files/get-free-robux-now_GM431946152.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/how-to-get-free-tiktok-followers-without-human-verification_GM835599320.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/how-to-free-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_002_off00003760.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x3760 | 23508 bytes |
SHA-256: 19167905257dc4e745b945b13d18664cb2c103a87bb9c13cb2cf0e0845be6383 |
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font_01_sfnt_off00006c75.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C75 | 18288 bytes |
SHA-256: 9f7609fba99e53c6baa99bb04d1c7e3f9b7167131c1520eb2a413cdab4a14871 |
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