MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
This PDF file contains a link that redirects to a known malicious infrastructure, specifically ttraff.ru, with a query parameter suggesting a lure related to 'java calculator code'. The PDF also exhibits characteristics of a link farm, embedding numerous external links, many of which point to Shopify-hosted PDFs. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed for malicious redirection.
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=java+calculator+code
- http://files.hearthsidecountry.com/uploads/1/3/1/4/131437423/779383.pdf
- http://files.wrhs65.net/uploads/1/3/1/4/131483279/nedumazakosamagizi.pdf
- http://files.urbanwordcollective.co.uk/uploads/1/3/1/8/131856162/bitaz_konixawusojap.pdf
- https://cdn.shopify.com/s/files/1/0433/3256/7195/files/zujefijaverutubebuxo.pdf
- https://cdn.shopify.com/s/files/1/0439/0692/4712/files/pemilawuvokir.pdf
- https://cdn.shopify.com/s/files/1/0432/2266/3325/files/fegesibij.pdf
- https://cdn.shopify.com/s/files/1/0437/9623/4400/files/9239271419.pdf
- https://cdn.shopify.com/s/files/1/0438/2438/2114/files/43448484712.pdf
- https://cdn.shopify.com/s/files/1/0429/8362/0767/files/vefore.pdf
- https://cdn.shopify.com/s/files/1/0434/5161/3334/files/68297948221.pdf
- https://cdn.shopify.com/s/files/1/0434/0659/0106/files/xedofi.pdf
- https://cdn.shopify.com/s/files/1/0434/1284/8790/files/30383225526.pdf
- https://cdn.shopify.com/s/files/1/0427/9812/1119/files/seworaletig.pdf
- https://cdn.shopify.com/s/files/1/0435/2756/9576/files/84949121108.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_off00005fd3.bin6b1a27d81a1d69a05a5b310e0d9cd94189b2ed5ecfb46a0ba6a8797949d93e01 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FD3 | 4804 bytes |
font_01_sfnt_off0000703f.bine1864dc5a650f00d0127d344e02242bfae63dcce884ac0af849d2132f5105be6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x703F | 14040 bytes |
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