MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file exhibits malicious behavior by acting as a link farm, directing users to potentially harmful websites. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that the embedded URL 'https://ttraff.ru/wix?keyword=great+depression+worksheets+middle+s' leads to known malicious redirector infrastructure. The 'PDF_SEO_LINK_FARM' heuristic further confirms the intent to distribute numerous external links, likely for SEO manipulation or to spread malware. No scripts were extracted from this sample.
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.ru/wix?keyword=great+depression+worksheets+middle+s
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://static.usrfiles.com/ugd/b8c837_9ab8d2e2da394f6191214d53b1402e32.pdf
- https://static.usrfiles.com/ugd/b8c837_085437aa8ead483f82bd694a5c504171.pdf
- https://static.usrfiles.com/ugd/b8c837_0444f4670e5641759cd886d5c46e78c8.pdf
- https://static.usrfiles.com/ugd/b8c837_9e3b4622226e425fbc95cc7d4cf7127b.pdf
- https://static.usrfiles.com/ugd/b8c837_510266711ea44240aaaeddf1757f5147.pdf
- https://static.usrfiles.com/ugd/b8c837_2ac059802fc34f08872ac0a45fc587c4.pdf
- https://static.usrfiles.com/ugd/b8c837_e861cdc6299c4cf8adb30d40da9b057c.pdf
- https://cdn.shopify.com/s/files/1/0431/5919/1712/files/sejaked.pdf
- https://cdn.shopify.com/s/files/1/0449/7873/3224/files/neumonia_guia_de_practica_clinica.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005d17.bin6554cc3d1596b0ab267ffe0549bb5ac3589bb7f04bfe7741582e9fc18b82708c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D17 | 5176 bytes |
font_01_sfnt_off00006e91.bine89c0c9ac93b9165469d791d59ef00f8ef8ea910ed50da657844237ec4b98edf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E91 | 10428 bytes |
font_02_sfnt_off00009243.bin05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9243 | 4324 bytes |
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