MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that lead to a redirector service, which in turn points to a link farm of other PDFs. The document body, though corrupted, contains text related to 'diffusion and osmosis problems worksheet answer key' and a URL that matches the redirector. This suggests a phishing or scam attempt to direct users to malicious content.
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/pify?keyword=diffusion+and+osmosis+problems+worksheet+answer+key
- http://minur.moosethemorkie.com/uploads/1/3/2/7/132740405/56c15ad6b.pdf
- http://lepaz.bijouxblues.com/uploads/1/3/0/7/130776485/suriniku.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://cdn.shopify.com/s/files/1/0430/6472/1562/files/tebosekiv.pdf
- https://cdn.shopify.com/s/files/1/0433/5498/0505/files/62301319627.pdf
- https://cdn.shopify.com/s/files/1/0435/4909/8148/files/febutivulo.pdf
- https://cdn.shopify.com/s/files/1/0434/6845/6086/files/facebook_liker_cheat.pdf
- https://cdn.shopify.com/s/files/1/0433/9033/7189/files/nuxolasurotexutaveraguzu.pdf
- https://cdn.shopify.com/s/files/1/0428/2544/9628/files/lojalisisowe.pdf
- https://cdn.shopify.com/s/files/1/0435/8271/8107/files/judenarikapuletob.pdf
- https://cdn.shopify.com/s/files/1/0431/4929/5776/files/mukazomusazugusam.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_off00006020.bin9035e0aef3c2a06e166a54401461c0e93fe48fe28761f6e725e957cf8cf0322a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6020 | 5560 bytes |
font_01_sfnt_off000072e9.bin455598e64352316dc8ee869ad2fb0f521502352f2cb838c54a2d9d826e79f868 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72E9 | 10812 bytes |
font_02_sfnt_off000097a2.binb50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x97A2 | 4324 bytes |
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