MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link to `ttraff.ru`, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'organic chemistry 1 for dummies pdf' and the URL itself, suggesting a lure. The presence of multiple external PDF links, some pointing to benign Shopify domains and others to potentially malicious ones, indicates a link farm or redirection scheme. The ML classifier strongly flagged this PDF as malicious.
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=organic+chemistry+1+for+dummies+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/6290de_c29876ece0bd42e5851d7d1231114019.pdf
- https://static.usrfiles.com/ugd/b8c837_ebc206580f4e41639b32a3acb87238f6.pdf
- https://static.usrfiles.com/ugd/a59130_4fa1a7fe58b2458490c9a452f039c55b.pdf
- https://static.usrfiles.com/ugd/db1da1_9124cfb98fae4347a3a72e04fb1f7009.pdf
- https://static.usrfiles.com/ugd/b8c837_25286c4c53824c33bd323f6e63ff0e53.pdf
- https://cdn.shopify.com/s/files/1/0433/9073/0398/files/vanokujexet.pdf
- https://cdn.shopify.com/s/files/1/0431/8094/9659/files/controle_maths_seconde_statistiques.pdf
- https://cdn.shopify.com/s/files/1/0431/3514/0007/files/21431122660.pdf
- https://cdn.shopify.com/s/files/1/0430/9804/6621/files/2593130001.pdf
- https://cdn.shopify.com/s/files/1/0433/8666/7158/files/manual_de_serigrafia.pdf
- https://cdn.shopify.com/s/files/1/0432/7673/0533/files/certified_accounting_technician_reviewer.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_off00006202.bin6c0344769c4863f86a8f552f7dfa5f709bd29b2bc288e2fdf1b5ac60212c516c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6202 | 5720 bytes |
font_01_sfnt_off0000754d.bin264e61fecb49f3e736a87f0754419a63a48c6e83da840f66f996c4aad5f5a79f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x754D | 9908 bytes |
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