MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically the URL https://ttraff.me/wix?keyword=railway+air+brake+system+seminar+report. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The presence of numerous other PDF links, many pointing to static.usrfiles.com, indicates a link farm strategy, likely to obscure the malicious redirector. The ML classifier strongly supports the malicious verdict.
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.me/wix?keyword=railway+air+brake+system+seminar+report
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_45d168df0d544de6a846328f3b998d86.pdf
- https://static.usrfiles.com/ugd/405339_15ec3f7dfd334142ad7de0bf02e61485.pdf
- https://static.usrfiles.com/ugd/99a8f2_d37705f71bc3441b8cf27e6213f81f96.pdf
- https://static.usrfiles.com/ugd/b8c837_76caa8574d1f42748c249e5a7a8c8f39.pdf
- https://static.usrfiles.com/ugd/0286dd_d71e3825dfeb4fb9b1defadaf1ca706a.pdf
- https://static.usrfiles.com/ugd/3ab5ed_5bde0771d6fb4b0780ebfde52cab7022.pdf
- https://static.usrfiles.com/ugd/9bd8c3_1cd2b59b902840d79c5a327ecf9c0f06.pdf
- https://cdn.shopify.com/s/files/1/0435/5905/9615/files/scalp_acupuncture_and_clinical_cases.pdf
- https://cdn.shopify.com/s/files/1/0439/3140/2395/files/garden_shed_plans_free.pdf
- https://cdn.shopify.com/s/files/1/0429/2627/6775/files/ragepovemasopa.pdf
- https://cdn.shopify.com/s/files/1/0434/3290/2806/files/44438280107.pdf
- https://cdn.shopify.com/s/files/1/0431/8229/3141/files/12355624.pdf
- https://static.usrfiles.com/ugd/469aea_2e26807ede794e84af9f8b07c3b55acd.pdf
- https://static.usrfiles.com/ugd/2b3f46_708f451648434578ab877a1df17a9024.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005e47.bin47f5b6657adebe841456ac11fdfd981776f5e1cb042605b02c711f364c31b3aa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E47 | 5372 bytes |
font_01_sfnt_off0000708a.bin7042648d2b5a39e324b9d6c197a248fc1ce7217c9768e0f4109386cf510c5dfe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x708A | 9900 bytes |
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