MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, identified as a link farm. One of these links, 'https://ttraff.cc/pify?keyword=bioquimica+clinica+baynes+pdf', points to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The document body contains garbled text but includes the same malicious URL and several benign-looking Shopify URLs, suggesting a lure to disguise the malicious redirect.
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.cc/pify?keyword=bioquimica+clinica+baynes+pdf
- http://files.nwcoasttrader.com/uploads/1/3/0/8/130815017/395bca25de47.pdf
- http://vemuzux.karenstever.com/uploads/1/3/1/4/131437812/nigififarovazela.pdf
- http://files.keyboards.es/uploads/1/3/1/4/131438501/gukerozokobetu.pdf
- http://files.nichehcb.com/uploads/1/3/0/7/130740367/funituwijudata-jitapo.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17810153535.pdf
- https://cdn.shopify.com/s/files/1/0431/6656/4507/files/80163730946.pdf
- https://cdn.shopify.com/s/files/1/0427/9340/2534/files/35337277374.pdf
- https://cdn.shopify.com/s/files/1/0431/0922/0501/files/xudakexonibewavolavigewi.pdf
- https://cdn.shopify.com/s/files/1/0430/4211/1650/files/18228196141.pdf
- https://cdn.shopify.com/s/files/1/0429/2280/3366/files/lukabesu.pdf
- https://cdn.shopify.com/s/files/1/0437/4380/5591/files/79509234115.pdf
- https://cdn.shopify.com/s/files/1/0433/1687/1336/files/5372838315.pdf
- https://cdn.shopify.com/s/files/1/0435/3651/5224/files/23320664016.pdf
- https://cdn.shopify.com/s/files/1/0441/0051/8040/files/bavifipe.pdf
- https://cdn.shopify.com/s/files/1/0437/1218/4474/files/24979394936.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_off00005d83.bin41d0a01d03638380f2aa3b3db517d02d31c07942691f57429cec9dca1fea0399 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D83 | 5620 bytes |
font_01_sfnt_off00007090.binacc054edbe4b277687ae1037066940aaf7a6158ce91e2b60fa1a1905db50c9c4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7090 | 9648 bytes |
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