MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/wix?keyword=schoolboy+q+blank+face+lp+zip'. The ML classifier also strongly indicated maliciousness. The document body contains garbled text but includes the primary malicious URL, suggesting a lure to external content. The presence of many Shopify-hosted PDFs, while individually benign, contributes to the overall SEO-based link farm strategy.
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/wix?keyword=schoolboy+q+blank+face+lp+zip
- https://cdn.shopify.com/s/files/1/0437/5894/4405/files/78306263189.pdf
- https://cdn.shopify.com/s/files/1/0430/9375/4009/files/novirepikegez.pdf
- https://cdn.shopify.com/s/files/1/0428/4160/4263/files/xetasuwa.pdf
- https://cdn.shopify.com/s/files/1/0428/6296/8991/files/binomial_distribution_examples.pdf
- https://cdn.shopify.com/s/files/1/0428/4393/0791/files/83244399197.pdf
- https://cdn.shopify.com/s/files/1/0429/2991/4012/files/tratado_de_direito_penal_bitencourt.pdf
- https://static.usrfiles.com/ugd/ade4e6_691dcd6f313c41019a91349ce82e4aeb.pdf
- https://static.usrfiles.com/ugd/b8c837_16d63047691748e19d09bcab43da2467.pdf
- https://static.usrfiles.com/ugd/b8c837_64a5360b754243ffa1bec505528476f8.pdf
- https://static.usrfiles.com/ugd/d9d1f5_332a6af93cd74de2bd22bf25331e50f6.pdf
- https://static.usrfiles.com/ugd/f55bec_8dffee07b04445cdafffab9c1aef35b2.pdf
- https://static.usrfiles.com/ugd/b8c837_70794ba9d425445caab772f7e50515e8.pdf
- https://static.usrfiles.com/ugd/d9d1f5_60c52c18ac314ec1bd6534ddb8b469d5.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_off00005b9b.bin33bad35ce78c19925a88c6936ce38b0efd90d20e927816dcf20fbab01c824824 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B9B | 5412 bytes |
font_01_sfnt_off00006e12.bin5314372d928d3b14e4be698fb919c76dae6e9b0e7d8556ede09cb1d3ce1271b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E12 | 10600 bytes |
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