MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool sometimes used to create SEO spam or redirector pages. The primary malicious IOC is the ttraff.ru URL, which is a known malicious redirector.
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=chiang+mai+tourist+map+pdf
- http://files.fbccrescentcity.org/uploads/1/3/2/3/132303010/9294618.pdf
- http://files.lgproma.com/uploads/1/3/2/6/132681517/forujuwudidakufex.pdf
- http://files.rasaddleclublarkhill.com/uploads/1/3/0/8/130874360/wugotani.pdf
- https://cdn.shopify.com/s/files/1/0431/9969/2958/files/ludobakisamesufokevapur.pdf
- https://cdn.shopify.com/s/files/1/0434/6406/5190/files/11956799119.pdf
- https://cdn.shopify.com/s/files/1/0432/9511/3374/files/somugeto.pdf
- https://cdn.shopify.com/s/files/1/0434/2035/2677/files/5872727430.pdf
- https://cdn.shopify.com/s/files/1/0435/9972/4703/files/gekev.pdf
- https://cdn.shopify.com/s/files/1/0431/3264/9636/files/womiwogupadasegenexo.pdf
- https://cdn.shopify.com/s/files/1/0431/7328/1948/files/mabokuripunegilomabebivo.pdf
- https://cdn.shopify.com/s/files/1/0430/4958/2743/files/sasinesuzubuwumivofatud.pdf
- https://cdn.shopify.com/s/files/1/0433/4275/8053/files/25214231638.pdf
- https://cdn.shopify.com/s/files/1/0432/7194/6398/files/vaziv.pdf
- https://cdn.shopify.com/s/files/1/0429/8620/9439/files/xukoworirolimozug.pdf
- https://cdn.shopify.com/s/files/1/0432/3773/6603/files/42312113456.pdf
- https://cdn.shopify.com/s/files/1/0440/0958/6846/files/60709634171.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006578.bind5751f0148d3adb88a202bd64da9b9aaa12e8175c08a17a69525726c9abe9b31 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6578 | 5208 bytes |
font_01_sfnt_off000076f7.bin7bf28cf6e14d9c4155967aa07990d2ff003f86bb1087e07c6e30c503dfb20a5a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76F7 | 9428 bytes |
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