MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains the same URL and a large number of other URLs, many hosted on cdn.shopify.com, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly indicated maliciousness.
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=aristoteles+metafisica+pdf+gredos
- http://files.aplusoftexas.com/uploads/1/3/0/7/130740429/9395144.pdf
- http://xivepoto.salvationarmyjustice.ca/uploads/1/3/0/7/130776485/3108596.pdf
- http://jalapujim.janrosenberg.com/uploads/1/3/1/3/131383314/ad509ca8.pdf
- http://files.bzdickstudio.com/uploads/1/3/1/3/131380480/xoxuvawu.pdf
- https://cdn.shopify.com/s/files/1/0439/9045/0334/files/9646979918.pdf
- https://cdn.shopify.com/s/files/1/0428/8489/0790/files/40191222478.pdf
- https://cdn.shopify.com/s/files/1/0434/2562/8327/files/for_each_loop_javascript.pdf
- https://cdn.shopify.com/s/files/1/0433/8984/5671/files/export_3d_to_step.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gejazopemovaro.pdf
- https://cdn.shopify.com/s/files/1/0433/4750/9416/files/jetusafabivorula.pdf
- https://cdn.shopify.com/s/files/1/0429/5737/3589/files/definition_du_manager.pdf
- https://cdn.shopify.com/s/files/1/0437/6113/9861/files/work_experience_certificate_letter.pdf
- https://cdn.shopify.com/s/files/1/0429/4184/1571/files/brilliant_green_bile_broth.pdf
- https://cdn.shopify.com/s/files/1/0432/2741/4696/files/indent_in_excel.pdf
- https://cdn.shopify.com/s/files/1/0428/7270/1095/files/78457588684.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_off0000481b.bina041d5b53dfa95a3be56e6a1ae4ede775ed2a240fecd8436c0ddd0bea7b95549 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x481B | 5464 bytes |
font_01_sfnt_off00005a98.bin310471edd576723c76b15cd2da1cc29790b526323d9b741a5c88c36bd6e1d177 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A98 | 10992 bytes |
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