MALICIOUS
180
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a malformed stream and links to known malicious redirector infrastructure, specifically advertising a "free Robux generator" lure. The ML classifier also flagged this PDF as malicious. The embedded URLs and document body text strongly suggest a phishing attempt to redirect users to potentially malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9684
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-just-enter-username-game-hack In PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/how-do-you-get-robux_GM431946152.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/free-robux-mod_GM431946152.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/cm-free-spins_GM406889139.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/free-robux-2021_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_off000033ed.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x33ED | 26764 bytes |
SHA-256: 67fdc66827fb7e239c536d799f0e0d144a7c6cb62f709c14d029f4fbaa77d70c |
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font_01_sfnt_off00006fa6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FA6 | 18960 bytes |
SHA-256: ad194f5984d8cbd7c817d1b512f86f024f40bf30beebdf7d12c6ff62fc849400 |
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