MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.cc, which is presented to the user as "study hall games unblocked". This suggests a social engineering tactic to drive traffic to malicious infrastructure. The PDF also contains a large number of external links, many hosted on static.usrfiles.com, indicating a potential link farm or content distribution network used for hosting malicious or benign payloads. The ML classifier strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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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://ttraff.cc/wix?keyword=study+hall+games+unblocked
- https://static.usrfiles.com/ugd/b8c837_c1d29e3d5b57467cb733da6a0c7d41b8.pdf
- https://static.usrfiles.com/ugd/b8c837_a55e0519319e4b03ae727583a567c2a0.pdf
- https://static.usrfiles.com/ugd/b8c837_175eddbbee2643abaa28acc967ce3714.pdf
- https://static.usrfiles.com/ugd/b8c837_344215e993c5403eb9505e7d16cfb44e.pdf
- https://static.usrfiles.com/ugd/ea78e0_1978e6f6af1d4dbe8d587d128f0d9508.pdf
- https://static.usrfiles.com/ugd/b8c837_d0815ec8331345a7bc46d36015fc39ff.pdf
- https://cdn.shopify.com/s/files/1/0436/4196/2649/files/67336018094.pdf
- https://cdn.shopify.com/s/files/1/0433/1867/3566/files/acertil_bula.pdf
- https://static.usrfiles.com/ugd/b8c837_b617370c43ad47229a90c2b3610463ac.pdf
- https://static.usrfiles.com/ugd/b8c837_40ecab15222e4f93acc8affd824c602a.pdf
- https://static.usrfiles.com/ugd/de65f7_c3fb1f0dc97540dc87775f172ee86cb7.pdf
- https://static.usrfiles.com/ugd/565485_4200357720c049a49d2d156d1d37d0f0.pdf
- https://static.usrfiles.com/ugd/b8c837_25f4a55853374376ac28586243a8f969.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000062b0.binc3d6791a1dd5d24242b17000fd551ead677119146535c1a78abc5f7382df68d0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62B0 | 5664 bytes |
font_01_sfnt_off000075db.bin4d7e9a1e48d09da28845aebcfbf5e9699267351b5129c0f6613381b3472f9c7b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75DB | 10024 bytes |
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