MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=multiplying+and+dividing+mixed+fractions+worksheets+pdf'. The document body, though heavily obfuscated, contains references to 'wkhtmltopdf' and a URL that matches the redirector. This suggests the PDF is designed to redirect users to malicious content, likely for phishing or malware distribution.
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=multiplying+and+dividing+mixed+fractions+worksheets+pdf
- http://kujuse.taybankglass.com/uploads/1/3/2/7/132710797/7787928.pdf
- http://files.stephaniemarceau.com/uploads/1/3/2/8/132814306/dawesu-jonulofuwijoz-notininav.pdf
- http://files.bitstutorial.com/uploads/1/3/0/8/130874539/388675.pdf
- http://fazaxine.limousinesinaustin.com/uploads/1/3/2/3/132303035/74d7b5975f.pdf
- https://cdn.shopify.com/s/files/1/0435/8130/9085/files/poultry_production_in_the_tropics.pdf
- https://cdn.shopify.com/s/files/1/0430/8716/7645/files/difubagogejodebulov.pdf
- https://cdn.shopify.com/s/files/1/0448/1790/7874/files/ejercicios_resueltos_de_centro_de_gravedad_y_centroide.pdf
- https://cdn.shopify.com/s/files/1/0433/5363/7018/files/90084197558.pdf
- https://cdn.shopify.com/s/files/1/0434/5780/6486/files/audiometria_otorrinolaringologia.pdf
- https://cdn.shopify.com/s/files/1/0436/5844/4958/files/zubewakuvidesokivimomirug.pdf
- https://cdn.shopify.com/s/files/1/0436/5680/6553/files/38171336431.pdf
- https://cdn.shopify.com/s/files/1/0432/9766/9278/files/31862967635.pdf
- https://cdn.shopify.com/s/files/1/0430/8611/9079/files/zipureduniw.pdf
- https://cdn.shopify.com/s/files/1/0429/9957/8773/files/33400380167.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/
- https://cdn.shopify.com/s/files/1/0433/5363/7018/file
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000064a4.bin6faa779c3af20d7256cf440f7550885563c6c5e853ddbdddc074aafccc48db38 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64A4 | 5960 bytes |
font_01_sfnt_off000078e6.binbcc7b11e556164e8c22f5903f4effe0d01ebe2c361e08521d781d5168f5abf32 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78E6 | 9412 bytes |
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