MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the same URL as the malicious redirector, suggesting an attempt to disguise a malicious link within academic-sounding text. The ML classifier also strongly indicated maliciousness.
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=how+to+report+intraclass+correlation+coefficient+apa
- http://files.mrsudbury.com/uploads/1/3/1/4/131453539/422f68238a2d0.pdf
- http://kuxob.nineteen09gifts.com/uploads/1/3/1/0/131070487/goxolazonojawirelap.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/9314/8313/files/47199347651.pdf
- https://cdn.shopify.com/s/files/1/0430/9745/6801/files/75756512652.pdf
- https://cdn.shopify.com/s/files/1/0432/6942/3269/files/zedajonurekere.pdf
- https://cdn.shopify.com/s/files/1/0432/6594/9862/files/bumunebuz.pdf
- https://cdn.shopify.com/s/files/1/0433/0445/2246/files/domexu.pdf
- https://cdn.shopify.com/s/files/1/0429/0379/7916/files/41286954172.pdf
- https://cdn.shopify.com/s/files/1/0434/3463/9522/files/pabewetujiwodu.pdf
- https://cdn.shopify.com/s/files/1/0431/1692/0996/files/xagiluxoxotegatolinaledop.pdf
- https://cdn.shopify.com/s/files/1/0429/3056/9382/files/8888907853.pdf
- https://cdn.shopify.com/s/files/1/0447/0842/9977/files/properties_of_alkyl_halides.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_off000061b2.bine6bfb9c9084d1a433636bb9467393291823b984e3b309187d68ab8ce69b16f67 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61B2 | 5064 bytes |
font_01_sfnt_off00007304.bin2ee47788dab5fc0c62801d104562573b933e18744c5ced6b7e6b5e0bdc221e29 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7304 | 10484 bytes |
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