MALICIOUS
180
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a malformed exploit stream and links to known malicious redirector infrastructure, specifically advertising a "free Robux" generator. The ML classifier also flagged this PDF as malicious. The embedded URLs suggest a lure for game-related cheats or currency, which is a common social engineering tactic to drive users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.8596
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 https://netcdn.xyz/app/431946152/free-robux-co-game-hack In PDF document text
- https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/getrobux-come_GM431946152.pdfIn PDF document text
- https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/coinmaster_GM406889139.pdfIn PDF document text
- https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
- https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
- https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/free-coin-master-spins-2021-link_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_off0000322f.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x322F | 24720 bytes |
SHA-256: 44601cd42e8666052457fd1db7a1234fc7b73cfe4e355a8c8d13205ca37e7936 |
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font_01_sfnt_off00006af6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AF6 | 8132 bytes |
SHA-256: e6d68e720ea5acf9dccbf7ffde18db6f65c62a99ab7725aa43e30329033a7787 |
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font_02_sfnt_off000085e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x85E3 | 18012 bytes |
SHA-256: 3ef9e48aa3d97d4217e004f7625a8cbae9320a74231b80a01553f6433e422360 |
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