MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains the same URL and a related query string, suggesting an attempt to disguise malicious content as a technical document. The presence of numerous other links, many hosted on Shopify, indicates a link farm strategy, likely to obscure the malicious redirector. The ML classifier also strongly flagged this PDF as malicious.
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=c+class+template+array+size
- http://files.maxstrength.org/uploads/1/3/2/3/132302888/1b7e87.pdf
- http://files.alberta-legal.com/uploads/1/3/1/6/131636655/vijaguz.pdf
- http://files.ambrosechiropracticcare.com/uploads/1/3/2/6/132681657/49303b0898298f.pdf
- https://cdn.shopify.com/s/files/1/0432/3367/3380/files/vosisibogoj.pdf
- https://cdn.shopify.com/s/files/1/0447/4103/4135/files/ccie_routing_and_switching_v4._0_configuration_practice_labs.pdf
- https://cdn.shopify.com/s/files/1/0431/8865/0141/files/wogupesudeji.pdf
- https://cdn.shopify.com/s/files/1/0435/1311/8872/files/87751091601.pdf
- https://cdn.shopify.com/s/files/1/0432/0267/4845/files/69551553519.pdf
- https://cdn.shopify.com/s/files/1/0434/8870/6717/files/html_to._net_core_2.pdf
- https://cdn.shopify.com/s/files/1/0429/2745/6419/files/15125569803.pdf
- https://cdn.shopify.com/s/files/1/0431/6754/7546/files/kofiwekimalupelutez.pdf
- https://cdn.shopify.com/s/files/1/0431/3631/9645/files/applications_of_nanotechnology_in_material_science.pdf
- https://cdn.shopify.com/s/files/1/0432/4527/3251/files/46802955902.pdf
- https://cdn.shopify.com/s/files/1/0431/8176/8872/files/raxokipa.pdf
- https://cdn.shopify.com/s/files/1/0438/3378/6525/files/tolib.pdf
- https://cdn.shopify.com/s/files/1/0429/6572/9429/files/27338591597.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_off0000669c.bin3128a251d4e1126c3c4b87e0bfc74941e34bb1e040d61d24b1d61a5ee5b12101 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x669C | 5136 bytes |
font_01_sfnt_off00007805.bin989d6b3a4e6b784339d052ad9a0499c8d9c4d939c0fb258607bd4d15f53e21ba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7805 | 15856 bytes |
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