MALICIOUS
260
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document is designed as a lure, presenting itself as a 'Free Robux Generator' to trick users into clicking malicious links. The document contains a large number of embedded URLs, many of which point to a redirector infrastructure hosted at http://netcdn.co/app/431946152/free-robux-generator-no-download-no-surveys-2021-game-hack and IP addresses like http://103.40.122.33. These links likely lead to further malicious content or exploit delivery. The malformed stream length heuristic suggests an attempt to hide malicious code within the PDF structure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
Heuristics 7
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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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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/431946152/free-robux-generator-no-download-no-surveys-2021-game-hack In PDF document text
- http://103.40.122.33/akasia/repository/is-there-a-free-trial-for-roblox-bc_GM431946152.pdfPDF link annotation
- http://103.40.122.33/akasia/repository/can-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
- http://103.40.122.33/akasia/repository/free-robux-generator-no-survey-no-download-2021_GM431946152.pdfIn PDF document text
- http://103.40.122.33/akasia/repository/roblox-support-hacked_GM431946152.pdfIn PDF document text
- http://103.40.122.33/akasia/repository/roblox-get-any-item-off-the-catalogue-for-free-2021_GM431946152.pdfIn PDF document text
- http://103.40.122.33/akasia/repository/hack-roblox-pc-download-scripts-no-noclip_GM431946152.pdfIn PDF document text
- http://103.40.122.33/akasia/repository/free-robux-no-scam_GM431946152.pdfIn PDF document text
- http://103.40.122.33/akasia/repository/roblox-full-version-free-download-apk_GM431946152.pdfIn PDF document text
- http://103.40.122.33/akasia/repository/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
- http://103.40.122.33/akasia/repository/hacker-png-roblox_GM431946152.pdfIn PDF document text
- http://103.40.122.33/akasia/repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
- http://103.40.122.33/akasia/repository/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
- http://103.40.122.33/akasia/repository/how-to-get-anything-for-free-on-roblox-2021_GM431946152.pdfIn PDF document text
- http://103.40.122.33/akasia/repository/free-minecraft-capes_GM479516143.pdfIn PDF document text
- http://103.40.122.33/akasia/repository/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
- http://103.40.122.33/akasia/repository/mcpe-116_GM479516143.pdfIn PDF document text
- http://103.40.122.33/akasia/repository/how-to-cheat-in-roblox-ro-ghoul_GM431946152.pdfIn PDF document text
- http://103.40.122.33/akasia/repository/free-robux-site_GM431946152.pdfIn PDF document text
- http://103.40.122.33/akasia/repository/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://103.40.122.33/akasia/repository/minecraft-hack-mod_GM479516143.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_off00002ffd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2FFD | 22260 bytes |
SHA-256: 176ba550b917b6ba32d404d7124e7ca92271faf1c2eaf56f3cceed91655329b8 |
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font_01_sfnt_off0000618a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x618A | 20096 bytes |
SHA-256: cd8d610abffcfa555b6b0575b6b4a45e01cef2ebcf46a9743c1018a7b8c36bd2 |
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