MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning attempt. One critical heuristic identified a link to a known malicious redirector at 'ttraff.ru', which is likely the primary malicious payload delivery mechanism. The ML classifier strongly indicated maliciousness, supporting the assessment of a malicious redirector attack pattern.
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=carranza+s+clinical+periodontology+9th+edition+pdf
- http://files.deanagrenier.com/uploads/1/3/0/7/130776423/7644917.pdf
- http://files.northcentralcivitans.org/uploads/1/3/0/7/130740062/mobuwibupanuwem_lurobeperum_gixotakuxedi_xajuzagelekegit.pdf
- http://files.jonathantsao.com/uploads/1/3/1/1/131164452/3927805.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28391359898.pdf
- https://cdn.shopify.com/s/files/1/0437/7021/6597/files/basarulimufeluzozajulor.pdf
- https://cdn.shopify.com/s/files/1/0437/0602/4101/files/poxaxasuvijuxojadusubo.pdf
- https://cdn.shopify.com/s/files/1/0437/0500/8293/files/verenepaduse.pdf
- https://cdn.shopify.com/s/files/1/0440/2970/6390/files/39512103097.pdf
- https://cdn.shopify.com/s/files/1/0428/3419/8684/files/bejutudifodokawaka.pdf
- https://cdn.shopify.com/s/files/1/0428/1470/1735/files/pozajemalejazikifo.pdf
- https://cdn.shopify.com/s/files/1/0430/8749/5321/files/79860801226.pdf
- https://cdn.shopify.com/s/files/1/0436/2688/9369/files/natomoxexebozuletivuwo.pdf
- https://cdn.shopify.com/s/files/1/0435/6859/5112/files/badudavofokasavexojosenug.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/1/0437/0500/8293/files/ver
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_007_off00009248.binf2d4269fc7184fdcc0682c2de40dfe021455e6c3caefe3067448808a9390b1e3 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x9248 | 21168 bytes |
font_00_sfnt_off00005aad.bin93522b279f88af7dbeefffd09bf86a5be6cf57aa60ac842ee9e33a7ea9932860 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5AAD | 5536 bytes |
font_01_sfnt_off00006d87.bind3e54e67aaff608345fd8598fbf0666d867916801274dff12695b6f264c94736 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D87 | 10884 bytes |
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