MALICIOUS
200
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains multiple links to known malicious redirectors and lures users with a fake CAPTCHA and "free generator" content, aiming to trick them into clicking through. The primary malicious URL identified is https://netcdn.xyz/app/431946152/free-robux-hacks-no-verification-game-hack, which is associated with a game hack lure. The document body and heuristics indicate a social engineering tactic to drive users to potentially download further malicious payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.8060
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/431946152/free-robux-hacks-no-verification-game-hack In PDF document text
- https://www.summerland.com.tw/upload/files/coin-master-hack-using-lucky-patcher_GM406889139.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/coin-master-hack-ios-jailbreak_GM406889139.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/best-free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/no-human-verification-coin-master-hack_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_002_off00003177.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x3177 | 25828 bytes |
SHA-256: 4ee3da2d939a2abb4828f776bdc2c16f678a89123edb0739e404601119569ca6 |
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font_01_sfnt_off00006b36.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B36 | 2832 bytes |
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2 |
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font_02_sfnt_off000074e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74E6 | 18772 bytes |
SHA-256: addbd32849de550f6a3cbf56c70cbffa7cf804e2f09d57d2f784457513eafccd |
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