MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains a link to a known malicious redirector, ttraff.ru, disguised as a library committee meeting report. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains the malicious URL and other links, suggesting a lure to external malicious content. No scripts were extracted, but the presence of a malicious redirector is a strong indicator of a phishing or malware distribution attempt.
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=library+committee+meeting+report
- http://files.esilwater.com/uploads/1/3/1/4/131453021/taxosibu.pdf
- https://cdn.shopify.com/s/files/1/0429/9204/2137/files/nazusa.pdf
- https://cdn.shopify.com/s/files/1/0436/2112/2208/files/igcse_cambridge_international_mathematics_0607_extended_book.pdf
- https://cdn.shopify.com/s/files/1/0428/2905/4118/files/starbound_full_game_free.pdf
- https://cdn.shopify.com/s/files/1/0440/6178/6262/files/list_of_herbivores_carnivores_and_omnivores_animals_with_pictures.pdf
- https://cdn.shopify.com/s/files/1/0431/4516/7008/files/complete_edm_handbook.pdf
- https://cdn.shopify.com/s/files/1/0435/0948/1626/files/asexual_reproduction_in_fungi.pdf
- https://cdn.shopify.com/s/files/1/0430/6095/3249/files/biological_classification_neet_mcq_download.pdf
- https://cdn.shopify.com/s/files/1/0432/4383/1464/files/jadinex.pdf
- https://cdn.shopify.com/s/files/1/0435/9749/6488/files/enlaces_quimicos_ionicos_y_covalentes.pdf
- https://cdn.shopify.com/s/files/1/0432/7145/4883/files/buddha_story_in_malayalam.pdf
- https://cdn.shopify.com/s/files/1/0430/8048/2967/files/dukim.pdf
- https://cdn.shopify.com/s/files/1/0433/8424/2334/files/wudunaw.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005cd9.binbf8b618f587785a888832d6c8602cf1daa7084d933d627d2dec9008ae9bb08fd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5CD9 | 5228 bytes |
font_01_sfnt_off00006e8d.binf6b459790b75ca7726b80cbb50943d81350964f24c2744e1c84f3bdf883c6ee9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E8D | 9920 bytes |
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