MALICIOUS
220
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains multiple heuristics indicating malicious redirector links and a lure for game hacks. The primary malicious URL identified is https://netcdn.online/app/406889139/150-free-spins-coin-master-game-hack, which is likely used to deliver a second-stage payload. The document body, though heavily obfuscated, contains references to this URL and appears to be designed to trick users into clicking it.
Machine Learning
- Nyx PDF Classifier malicious score 0.9769
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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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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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.online/app/406889139/150-free-spins-coin-master-game-hack In PDF document text
- https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
- https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
- https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/coin-master-free-spin-reward-links_GM406889139.pdfIn PDF document text
- https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/free-coin-link-coin-master_GM406889139.pdfIn PDF document text
- https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/how-to-generate-free-coin-master-spin_GM406889139.pdfIn PDF document text
- https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
- https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
- https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
- https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/how-to-get-free-gear-in-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/coin-master-hack-online-generator_GM406889139.pdfIn PDF document text
- https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/oprewards-points-generator_GM431946152.pdfIn PDF document text
- https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
- https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/free-roblox-clothes-2021_GM431946152.pdfIn PDF document text
- https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/coin-master-codes_GM406889139.pdfIn PDF document text
- https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/how-many-free-spin-links-is-there-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/free-robux-real_GM431946152.pdfIn PDF document text
- https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/coin-master-free-spin-ml_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_004_off000053c0.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x53C0 | 25332 bytes |
SHA-256: f8a29f54bae4e3fb9f3353a799d0be9f646eaedd274e71873fdb0f30b54ccc8c |
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font_01_sfnt_off00008d00.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D00 | 2880 bytes |
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132 |
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font_02_sfnt_off000096ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x96EA | 18300 bytes |
SHA-256: a3dc9a6d4a02af618959bbf9fe7c329c9f9d103a3a18e22a11c930be4fd02f71 |
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