MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external PDF links, many hosted on Shopify. The document body, though partially corrupted, contains text related to downloading PDFs and the 'ttraff.ru' URL, suggesting a lure to distribute more content or redirect users to malicious sites.
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=understanding+architecture+through+drawing+pdf+download
- http://files.solutionsinarchery.com/uploads/1/3/0/8/130813913/dudebi-kukabovuxetu.pdf
- http://files.bigthompsonuniservunit.com/uploads/1/3/0/7/130740053/b45c59229a.pdf
- http://files.jenniferowendavies.com/uploads/1/3/0/7/130775011/2356720.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/5123/8047/files/acta_constitutiva_empresa_constructora.pdf
- https://cdn.shopify.com/s/files/1/0435/5293/1995/files/69290972697.pdf
- https://cdn.shopify.com/s/files/1/0436/2862/6080/files/57494417893.pdf
- https://cdn.shopify.com/s/files/1/0431/7888/5280/files/kilikapepap.pdf
- https://cdn.shopify.com/s/files/1/0439/0807/1576/files/nanalelikurozevalomufu.pdf
- https://cdn.shopify.com/s/files/1/0431/1980/4578/files/72212803010.pdf
- https://cdn.shopify.com/s/files/1/0432/7089/7824/files/67348329882.pdf
- https://cdn.shopify.com/s/files/1/0430/4555/2277/files/dutuvi.pdf
- https://cdn.shopify.com/s/files/1/0434/7982/6597/files/kiwopeti.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vijufetibumumupaxewaromuw.pdf
- https://cdn.shopify.com/s/files/1/0432/4684/6107/files/31496864121.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004f67.bind1fadd33edf8f0faeb71fd328df73ee1dc413244e16ef628086522e3f4c8c6c5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4F67 | 5500 bytes |
font_01_sfnt_off00006233.bincf196afedd5374226a5002c1a5816f4429942a07851a2b0f189cc50d8e84ed5d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6233 | 10284 bytes |
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