MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to funnel traffic to malicious sites. The document also features a large number of embedded links to other PDFs hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly indicated maliciousness, supporting the presence of these malicious indicators.
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=ejercicios+programacion+lineal
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/0242/9593/files/18175609798.pdf
- https://cdn.shopify.com/s/files/1/0429/0379/7913/files/31469321815.pdf
- https://cdn.shopify.com/s/files/1/0437/5298/0641/files/xamika.pdf
- https://static.usrfiles.com/ugd/b8c837_8fb55a0add6e4304b3a96b56f0bdc8e2.pdf
- https://static.usrfiles.com/ugd/b8c837_2d8de324a7ad4c1e9be21432f537f8eb.pdf
- https://cdn.shopify.com/s/files/1/0430/9748/9572/files/abap_in_21_days.pdf
- https://cdn.shopify.com/s/files/1/0434/8107/1782/files/50924995616.pdf
- https://cdn.shopify.com/s/files/1/0435/0600/8216/files/sizasewawaga.pdf
- https://cdn.shopify.com/s/files/1/0435/5696/2465/files/ecology_vocabulary_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0437/3390/9665/files/55034357218.pdf
- https://cdn.shopify.com/s/files/1/0435/8340/6239/files/unit_of_analysis_definition_research.pdf
- https://cdn.shopify.com/s/files/1/0432/5661/0971/files/mixopida.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_off0000753c.bin9273a16168ffb925a13e3978019229c9dbc1a7682f19e418528b90181cddd7d5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x753C | 5284 bytes |
font_01_sfnt_off00008728.bin815b9e1e0d5172e48c858575cd3d5f3293c48d9a3a3424bbdbe66b60d5149bcc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8728 | 11928 bytes |
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