MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, suggesting a link farm or SEO poisoning tactic. One of the embedded URLs, 'https://ttraff.ru/pify?keyword=bibliography+examples+pdf', is identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same malicious URL and other PDF links.
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=bibliography+examples+pdf
- http://pazujaw.cfpcf.org/uploads/1/3/1/6/131607131/firubiso-napuzexiberaz.pdf
- http://files.stunningsphynxkitten.com/uploads/1/3/0/7/130775679/4134fad61.pdf
- http://files.rachelsweetdesign.com/uploads/1/3/1/3/131398479/vikebimixil_temenitifuk_dukemub_detidiwoledar.pdf
- https://cdn.shopify.com/s/files/1/0431/8851/9074/files/monofuse.pdf
- https://cdn.shopify.com/s/files/1/0429/0733/6867/files/pantech_duo_com.pdf
- https://cdn.shopify.com/s/files/1/0436/1325/7885/files/lupugifagijiwavekavi.pdf
- https://cdn.shopify.com/s/files/1/0431/9323/7665/files/54858028346.pdf
- https://cdn.shopify.com/s/files/1/0430/5331/8306/files/lubifoferosumas.pdf
- https://cdn.shopify.com/s/files/1/0433/4754/2175/files/30881231453.pdf
- https://cdn.shopify.com/s/files/1/0434/3323/0488/files/17183587174.pdf
- https://cdn.shopify.com/s/files/1/0431/7170/9092/files/95877387704.pdf
- https://cdn.shopify.com/s/files/1/0439/5276/7131/files/sobesa.pdf
- https://cdn.shopify.com/s/files/1/0431/1977/1799/files/kudegunadogitavu.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/76222514852.pdf
- https://cdn.shopify.com/s/files/1/0434/1871/4277/files/novudisovisavivusejetod.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_off00005fe2.bince467401f6a11fb3987aefa45e255948647e5fde7de6233f82728a5613e3128f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FE2 | 5812 bytes |
font_01_sfnt_off0000738b.bin7d590cdd65352662b958185937ed3cb7cf246fd7e3215b61a38ce34b9cd75f41 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x738B | 10120 bytes |
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