MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One of the primary links, 'https://ttraff.ru/pify?keyword=histologi+arteri+pdf', is identified as a known malicious redirector. This suggests the document is part of a link farm designed to lure users to malicious sites. 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=histologi+arteri+pdf
- http://files.20thlondon.com/uploads/1/3/1/3/131398095/4de26d6.pdf
- http://puzanijo.theoutstandingguides.com/uploads/1/3/0/7/130776031/c84c3d9.pdf
- http://files.emilyrbarratt.co.uk/uploads/1/3/1/4/131453944/a4e7ed7509af5.pdf
- http://zofed.elynyd.com/uploads/1/3/2/7/132740494/b6e2c5f7.pdf
- http://files.rockdogltd.com/uploads/1/3/0/8/130813546/fadutinan-kopizerexi-likep.pdf
- https://cdn.shopify.com/s/files/1/0430/2379/4337/files/loduxozubafami.pdf
- https://cdn.shopify.com/s/files/1/0438/9653/7243/files/swashbuckler_5e_build.pdf
- https://cdn.shopify.com/s/files/1/0430/9997/9930/files/75974322228.pdf
- https://cdn.shopify.com/s/files/1/0428/5405/6092/files/resume_templates_open_office.pdf
- https://cdn.shopify.com/s/files/1/0432/4871/3896/files/90057166562.pdf
- https://cdn.shopify.com/s/files/1/0436/9973/2634/files/84487779714.pdf
- https://cdn.shopify.com/s/files/1/0431/5863/4658/files/56046750146.pdf
- https://cdn.shopify.com/s/files/1/0430/2068/1377/files/15474300949.pdf
- https://cdn.shopify.com/s/files/1/0438/0144/4512/files/feranenikubavafedafufuxel.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006595.bin4731516ac98411cfeaf23895a099fe4228f40cb583365cf7033c9d76a7b3d955 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6595 | 4852 bytes |
font_01_sfnt_off00007629.bin7b7d7ca8f768e39889ffe7d2e68874034f347693367f6b221e925a4bde5045cd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7629 | 10244 bytes |
font_02_sfnt_off0000992c.bince7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x992C | 4324 bytes |
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