MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. The document body also contains this URL along with numerous other Shopify-hosted PDF links, suggesting a link farm or SEO poisoning attempt. The ML classifier strongly indicated maliciousness, and the primary malicious IOC is the redirector URL.
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/wb?keyword=engineering%20tribology%20gwidon%20w.%20stachowiak%20pdf
- http://files.phoenixosteopathy.com/uploads/1/3/1/0/131070911/kuvijejitus.pdf
- http://files.thecbdshoppe.net/uploads/1/3/0/9/130969974/risuxefibu-miwileworine-xitamano-venutawer.pdf
- http://kowuri.baan-amorn.com/uploads/1/3/0/8/130814526/tevobikigewiwemanag.pdf
- http://jotugim.paula-rose.co.uk/uploads/1/3/1/3/131398455/32358ad71c9f1.pdf
- https://cdn.shopify.com/s/files/1/0445/6205/5332/files/jazz_blues_soloing_for_guitar.pdf
- https://cdn.shopify.com/s/files/1/0431/6525/3792/files/gakofekoko.pdf
- https://cdn.shopify.com/s/files/1/0437/9849/5389/files/ginefemo.pdf
- https://cdn.shopify.com/s/files/1/0438/2159/6834/files/34075638935.pdf
- https://cdn.shopify.com/s/files/1/0433/7677/1224/files/nexefagajorot.pdf
- https://cdn.shopify.com/s/files/1/0434/4047/2214/files/fubefezezobafaxujo.pdf
- https://cdn.shopify.com/s/files/1/0432/1234/1412/files/kabbalah_practica.pdf
- https://cdn.shopify.com/s/files/1/0434/1504/4252/files/3592785241.pdf
- https://cdn.shopify.com/s/files/1/0427/5165/6102/files/56801035880.pdf
- https://cdn.shopify.com/s/files/1/0431/2766/8890/files/27022035326.pdf
- https://cdn.shopify.com/s/files/1/0431/4424/9499/files/libro_administracion_de_recursos_humanos_snell_bohlander.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_off00005973.binf2c29fc24b15c65d492407c3c466da2c41aba495904153f31682dd62a5810664 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5973 | 5804 bytes |
font_01_sfnt_off00006d47.bin5bbf0d9adf7ffb2c5565e4954fe16e5aac5d9ccc0d8e06d4d4027c8d60a2e74c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D47 | 9824 bytes |
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