MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1566.002 Spearphishing Link
T1204.001 User Execution: Malicious Link
The PDF document contains multiple heuristics indicating a malicious intent, including brand impersonation (Facebook) and a lure for free Robux, directing users to a suspicious URL. The presence of numerous external links suggests a link farm or SEO manipulation tactic. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9796
Heuristics 7
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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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PDF links to a 'free generator / game hack' redirector high 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.
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Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISHDocument impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.online/app/431946152/codes-how-to-get-free-robux-game-hack.
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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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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External URI info PDF_URIPDF contains an external URL action
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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.online/app/431946152/codes-how-to-get-free-robux-game-hack PDF link annotation
- http://pustakasma.nurulfikri.sch.id/repository/coin-master-free-spins-reddit_GM406889139.pdfIn PDF document text
- http://pustakasma.nurulfikri.sch.id/repository/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
- http://pustakasma.nurulfikri.sch.id/repository/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
- http://pustakasma.nurulfikri.sch.id/repository/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
- http://pustakasma.nurulfikri.sch.id/repository/pubg-uc-2021_GM1330123889.pdfIn PDF document text
- http://pustakasma.nurulfikri.sch.id/repository/roblox-avatar-free_GM431946152.pdfIn PDF document text
- http://pustakasma.nurulfikri.sch.id/repository/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
- http://pustakasma.nurulfikri.sch.id/repository/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
- http://pustakasma.nurulfikri.sch.id/repository/coin-master-sound-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
- http://pustakasma.nurulfikri.sch.id/repository/how-to-change-your-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
- http://pustakasma.nurulfikri.sch.id/repository/install-free-game-coin-master_GM406889139.pdfIn PDF document text
- http://pustakasma.nurulfikri.sch.id/repository/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
- http://pustakasma.nurulfikri.sch.id/repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
- http://pustakasma.nurulfikri.sch.id/repository/free-robux-link_GM431946152.pdfIn PDF document text
- http://pustakasma.nurulfikri.sch.id/repository/free-roblox-account-genrator_GM431946152.pdfIn PDF document text
- http://pustakasma.nurulfikri.sch.id/repository/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- http://pustakasma.nurulfikri.sch.id/repository/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
- http://pustakasma.nurulfikri.sch.id/repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
- http://pustakasma.nurulfikri.sch.id/repository/free-robux-script_GM431946152.pdfIn PDF document text
- http://pustakasma.nurulfikri.sch.id/repository/www-free-robux-com_GM431946152.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_004_off00005434.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x5434 | 25616 bytes |
SHA-256: f2f96e551ba086e576576c346d20038d9664b9d50d3e142dfa75a06bb9c559b2 |
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font_01_sfnt_off00009007.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9007 | 3512 bytes |
SHA-256: 20bf1697e2adf851d40ebe6783dfd7e3ad0961666681d856d811a603d9a71270 |
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font_02_sfnt_off00009b9a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9B9A | 18456 bytes |
SHA-256: e7ed60d24a78ba6057de20e743a58d73d760a91b60c41324c250f3bd6f119d62 |
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