MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains embedded links, one of which, 'https://ttraff.ru/pify?keyword=estados+financieros+pdf+unam', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other links to PDF files, suggesting a lure to download further content. The ML classifier strongly indicates maliciousness, and the presence of a link farm heuristic further supports a malicious intent to redirect users.
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=estados+financieros+pdf+unam
- http://files.manjaroresort.com/uploads/1/3/1/3/131398347/jexerijawebewo.pdf
- http://files.rusticedenphotos.com/uploads/1/3/0/7/130739398/91bb7b561.pdf
- http://gadaxakex.stmaryslbc.com/uploads/1/3/0/7/130776738/7965862.pdf
- https://cdn.shopify.com/s/files/1/0431/5598/0439/files/dudelife.pdf
- https://cdn.shopify.com/s/files/1/0435/9720/1576/files/33278104210.pdf
- https://cdn.shopify.com/s/files/1/0434/0131/4456/files/79653687280.pdf
- https://cdn.shopify.com/s/files/1/0433/5278/5055/files/9860010669.pdf
- https://cdn.shopify.com/s/files/1/0434/9375/2997/files/bigafetajuseni.pdf
- https://cdn.shopify.com/s/files/1/0429/3342/0195/files/99131948910.pdf
- https://cdn.shopify.com/s/files/1/0429/1241/5897/files/vakuromiwapokosubezavop.pdf
- https://cdn.shopify.com/s/files/1/0448/3085/1233/files/inventory_costing_methods.pdf
- https://cdn.shopify.com/s/files/1/0433/9705/4631/files/94526414343.pdf
- https://cdn.shopify.com/s/files/1/0437/5327/5546/files/tizirofipoledenafo.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_off00006e26.bine677205dbc3e56cc3658cacc6405918c620c62814fe341e6f79545b9a79b46dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E26 | 5228 bytes |
font_01_sfnt_off00007fd3.binc7f7dbdc92b21c73879f3f8ce4301718ec5434be235dabb5673b2fad690dd1fa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FD3 | 15700 bytes |
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