MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.ru. This URL is presented as 'building maintenance inspection forms', a common lure. The ML classifier strongly indicated maliciousness, and the PDF structure is consistent with a link farm designed to redirect users to malicious infrastructure.
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=building+maintenance+inspection+forms
- http://files.brightstarkids.com/uploads/1/3/0/9/130969211/mesozakavokep.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/miveguxuxububepevomozit.pdf
- https://cdn.shopify.com/s/files/1/0427/7121/8588/files/88753890408.pdf
- https://cdn.shopify.com/s/files/1/0432/2469/4942/files/fisipafidizitufutulanovu.pdf
- https://cdn.shopify.com/s/files/1/0437/7178/9470/files/48696361354.pdf
- https://cdn.shopify.com/s/files/1/0431/9513/8208/files/26696263883.pdf
- https://cdn.shopify.com/s/files/1/0432/3213/3278/files/56041428036.pdf
- https://cdn.shopify.com/s/files/1/0433/4610/0377/files/61525036814.pdf
- https://cdn.shopify.com/s/files/1/0435/2586/5636/files/veresunemukemufijorun.pdf
- https://cdn.shopify.com/s/files/1/0436/7400/9753/files/build_muscle_without_weights.pdf
- https://cdn.shopify.com/s/files/1/0431/6138/7170/files/26045689315.pdf
- https://cdn.shopify.com/s/files/1/0440/1784/4382/files/mamubeketebixokox.pdf
- https://cdn.shopify.com/s/files/1/0433/5747/0870/files/madotut.pdf
- https://cdn.shopify.com/s/files/1/0428/1637/2892/files/vishnu_aparajita_stotram.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_off00005fbf.bin179804fc0378ba869c7de04cb7d65f876c51c519eba63af7ac879b241d21b853 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FBF | 5524 bytes |
font_01_sfnt_off00007268.bin8d0a26290ec8f4b1dcfaa937ee0e90d1702f00ab04a83f025481453f0f0aed12 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7268 | 9540 bytes |
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