MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The primary malicious URL identified is https://ttraff.ru/pify?keyword=epidemiologia+basica+2+edi%25C3%25A7%25C3%25A3o+pdf, which likely serves as a gateway to further malicious content. The ML classifier also strongly indicated maliciousness.
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=epidemiologia+basica+2+edi%25C3%25A7%25C3%25A3o+pdf
- http://files.pbttaxsolutions.co.uk/uploads/1/3/0/7/130776445/6256105.pdf
- http://files.tarotartist.net/uploads/1/3/2/6/132681938/8280551.pdf
- http://files.c3industriesllc.com/uploads/1/3/1/3/131381919/e1716c61f4.pdf
- http://files.anglersadvantage.ca/uploads/1/3/2/8/132814476/5936485.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0440/1758/2230/files/71959833697.pdf
- https://cdn.shopify.com/s/files/1/0437/4292/0869/files/pendulum_chart.pdf
- https://cdn.shopify.com/s/files/1/0438/0036/3169/files/94447055758.pdf
- https://cdn.shopify.com/s/files/1/0435/0479/5800/files/big_data_analytics_with_spark_and_hadoop.pdf
- https://cdn.shopify.com/s/files/1/0430/1157/1865/files/west_s_business_law_12th_edition.pdf
- https://cdn.shopify.com/s/files/1/0431/1125/2132/files/gutudulevuwovip.pdf
- https://cdn.shopify.com/s/files/1/0433/6661/3141/files/76272699808.pdf
- https://cdn.shopify.com/s/files/1/0439/9408/7582/files/suvemozewazij.pdf
- https://cdn.shopify.com/s/files/1/0434/0151/1077/files/67387183032.pdf
- https://cdn.shopify.com/s/files/1/0432/4674/7803/files/fejifetid.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_off00005dc9.bin0ac6745da3cdddf4e3da4728b04a074bed7e9a97a663ff0f6658f346327def23 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DC9 | 6108 bytes |
font_01_sfnt_off000071b0.bin22c2a2a225dadabf31507fea9531b8e95e2530c31742c61f80c556abe797a239 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71B0 | 12432 bytes |
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