MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a mass external link farm, with a primary malicious redirector URL embedded within the document body. This URL, when clicked, leads to a lure page for 'chemistry notes pdf igcse', which then redirects to a malicious site. The ML classifier strongly indicates maliciousness, and the PDF structure is consistent with SEO-based spam campaigns.
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=chemistry+notes+pdf+igcse
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_0914cf91d1d74eb097ffca1d1712fcdc.pdf
- https://static.usrfiles.com/ugd/b8c837_da67616249a94069aded818778114e0a.pdf
- https://static.usrfiles.com/ugd/5fd5c1_1ab3a647097a4bbb88ede2c6f99d0e3a.pdf
- https://static.usrfiles.com/ugd/a44510_5a420258d78c4448a88b1ca594fc0f74.pdf
- https://static.usrfiles.com/ugd/625844_9b4f8db7534444c4b2f648f2f28dee2d.pdf
- https://static.usrfiles.com/ugd/b8c837_f5f3e3d5a9e3433186ffa68aeeea68e6.pdf
- https://static.usrfiles.com/ugd/b8c837_d4cae5fa94474288b9034178c808b59d.pdf
- https://static.usrfiles.com/ugd/455f95_03f8126e18d34cbfa5e05ee83a88b6fb.pdf
- https://static.usrfiles.com/ugd/4c3d6a_0b06a16178314e6aadbe708a2ee5789a.pdf
- https://static.usrfiles.com/ugd/76156b_f72e4a20f1584dc9993d177a865402ef.pdf
- https://static.usrfiles.com/ugd/f2c1dc_2f2567d02a4f4bc989ab3c61698bb9e6.pdf
- https://static.usrfiles.com/ugd/314c35_7a515845b34c48dbbb97b8b4d4a1dabc.pdf
- https://static.usrfiles.com/ugd/b4a829_6ba4a22f549d43ed9832c6a0e5c1a85e.pdf
- https://static.usrfiles.com/ugd/756799_5e2f0dee14b54b4798388f1f2a37a21a.pdf
- https://static.usrfiles.com/ugd/b8c837_eea4112683c54a28bbe9606a482bf2ab.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_off0000563d.bind7ca8ead6decc6c0b59947ff9173470a54a4dd048b275651524d2cec9ca5d5bd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x563D | 5332 bytes |
font_01_sfnt_off00006846.bin63742d2bbf63a83035027f6bb60bd4372b66978372c0c15808864f3d86eaabaf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6846 | 10280 bytes |
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