MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised with a seemingly innocuous keyword. The ML classifier strongly indicates maliciousness. The document body, though partially corrupted, contains the same URL and a reference to a PDF file hosted on Shopify, suggesting a link farm or redirection tactic. No scripts were extracted, limiting the analysis of the execution chain.
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=refrigerated+breast+milk+storage+guidelines
- http://files.dkgmd.org/uploads/1/3/1/4/131438443/5917786.pdf
- http://files.pleasurepie.org/uploads/1/3/0/7/130776508/rijimo.pdf
- http://files.reading2reading.com/uploads/1/3/0/9/130969555/49253ecafb.pdf
- http://files.archieparnell4congress.com/uploads/1/3/0/7/130775379/vomibazoti.pdf
- https://cdn.shopify.com/s/files/1/0428/6388/6495/files/vinapusevorujijizowedemo.pdf
- https://cdn.shopify.com/s/files/1/0440/5254/5701/files/bilanz_beispiel.pdf
- https://cdn.shopify.com/s/files/1/0429/7916/4314/files/45473492735.pdf
- https://cdn.shopify.com/s/files/1/0430/8130/2167/files/ramix.pdf
- https://cdn.shopify.com/s/files/1/0450/1697/3476/files/62218610838.pdf
- https://cdn.shopify.com/s/files/1/0433/5340/7646/files/b_r_bhat_modern_probability_theory.pdf
- https://cdn.shopify.com/s/files/1/0430/7963/1012/files/87217446328.pdf
- https://cdn.shopify.com/s/files/1/0430/7186/4993/files/57003577382.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78046530146.pdf
- https://cdn.shopify.com/s/files/1/0440/9848/6424/files/57650587021.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_off00006896.bind3d5404705d87c1021576f289ac4dea428b33c47878d6be9f668604bad7c7dc2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6896 | 5440 bytes |
font_01_sfnt_off00007b06.bin9b78149065fadcd1fb743b507aa48b8e36f599c456187c9c435cf6d58baa7cca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B06 | 10564 bytes |
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