MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'machine learning' and the wkhtmltopdf tool, suggesting a lure. The primary attack pattern involves redirecting users to malicious infrastructure via these links.
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.com/wb?keyword=que%20es%20el%20machine%20learning%20pdf
- http://files.camera1.ca/uploads/1/3/1/3/131380413/pizixejawij.pdf
- http://files.mountaincelebrations.co.uk/uploads/1/3/0/8/130813378/6210473.pdf
- http://files.printfinishingstore.com/uploads/1/3/1/3/131398573/527217.pdf
- http://files.ellianajolenasbows.com/uploads/1/3/0/8/130813852/lurem-koxubuxobowe.pdf
- http://files.carlbergbo.com/uploads/1/3/0/7/130775850/df66c75d2.pdf
- https://cdn.shopify.com/s/files/1/0428/5697/2455/files/65551285806.pdf
- https://cdn.shopify.com/s/files/1/0431/2583/3884/files/panexojozamujolusu.pdf
- https://cdn.shopify.com/s/files/1/0429/7841/0655/files/tixexeze.pdf
- https://cdn.shopify.com/s/files/1/0432/7931/9196/files/dinarevejuxokedotexivefi.pdf
- https://cdn.shopify.com/s/files/1/0433/5606/1850/files/87936917590.pdf
- https://cdn.shopify.com/s/files/1/0437/7182/2229/files/zukuropejeg.pdf
- https://cdn.shopify.com/s/files/1/0434/1334/0316/files/zupin.pdf
- https://cdn.shopify.com/s/files/1/0432/4874/6651/files/kigisujanipupalatud.pdf
- https://cdn.shopify.com/s/files/1/0431/0781/1482/files/23301481323.pdf
- https://cdn.shopify.com/s/files/1/0437/9043/4456/files/dexogab.pdf
- https://cdn.shopify.com/s/files/1/0434/0921/1549/files/getupunotifononuboraxag.pdf
- https://cdn.shopify.com/s/files/1/0428/5906/9599/files/14131382057.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_off00007d62.binac7bb00c24640a9b4a4cbaf40ba97c3e3f40e752a333d161ff74ea69e1bd32ca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D62 | 5324 bytes |
font_01_sfnt_off00008f49.bine4e6c0a16f98644a926497a2e70f2bd23bab159b0ff386ecf9c7059029799f03 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F49 | 11100 bytes |
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