MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=marginal+and+absorption+costing+pdf'. The document body, though heavily corrupted, also contains this URL and numerous other Shopify-hosted PDF links, suggesting a link farm or redirection scheme designed to lead users to malicious content. The ML classifier strongly supports the malicious nature of this PDF.
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=marginal+and+absorption+costing+pdf
- http://files.jalcinstruments.com/uploads/1/3/1/4/131436991/9568094.pdf
- http://files.fernandanavarro.net/uploads/1/3/2/7/132710491/c8f39e.pdf
- http://xazuleba.qrbundling.com/uploads/1/3/0/8/130814397/fff0083a4.pdf
- https://cdn.shopify.com/s/files/1/0440/6539/0757/files/jugidivuzo.pdf
- https://cdn.shopify.com/s/files/1/0428/7696/0924/files/luxalon.pdf
- https://cdn.shopify.com/s/files/1/0447/3644/6613/files/gta_5_playlists.pdf
- https://cdn.shopify.com/s/files/1/0439/3412/2139/files/carrageenan_cancer.pdf
- https://cdn.shopify.com/s/files/1/0430/2091/0746/files/31574558118.pdf
- https://cdn.shopify.com/s/files/1/0436/8600/2843/files/83519675012.pdf
- https://cdn.shopify.com/s/files/1/0431/0876/1764/files/dagarebidobonijixaw.pdf
- https://cdn.shopify.com/s/files/1/0434/6537/5908/files/29494782141.pdf
- https://cdn.shopify.com/s/files/1/0431/7344/5792/files/2818127963.pdf
- https://cdn.shopify.com/s/files/1/0434/8208/7588/files/zonim.pdf
- https://cdn.shopify.com/s/files/1/0430/3860/5461/files/78887081937.pdf
- https://cdn.shopify.com/s/files/1/0435/3916/9429/files/dowitukepisepujeteputiz.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_off00006931.bin571ec8b5d1855f3c0f48b1abc6d1b46e9bf571d4d4909f1b38fe1c79fa5f98c3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6931 | 5468 bytes |
font_01_sfnt_off00007bde.binbadeac3cd445f995c179fb76a34dd60214837d06db227018d5171e84997edcdf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BDE | 10100 bytes |
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