MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, including one pointing to known malicious redirector infrastructure at `https://ttraff.ru/wb?keyword=practical%20optimization%20methods%20pdf`. The document body, though heavily obfuscated, also contains this URL, suggesting a lure to external content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious redirector attempt.
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/wb?keyword=practical%20optimization%20methods%20pdf
- http://files.thenestwhitefish.com/uploads/1/3/1/4/131410952/7c132fe09bc4c.pdf
- http://files.resfeberrecollections.com/uploads/1/3/1/4/131437487/piduvekejov.pdf
- http://files.bdickinsonart.com/uploads/1/3/1/6/131637055/gibosefuzoko-dusobeforadewiz-rugawiwe-midogoz.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0438/4188/0224/files/barud.pdf
- https://cdn.shopify.com/s/files/1/0432/2004/1886/files/54867085533.pdf
- https://cdn.shopify.com/s/files/1/0431/8570/1019/files/zanibedaputu.pdf
- https://cdn.shopify.com/s/files/1/0428/9685/1111/files/65712091936.pdf
- https://cdn.shopify.com/s/files/1/0433/9079/5934/files/migob.pdf
- https://cdn.shopify.com/s/files/1/0435/1442/9608/files/bisakamubolumerurawi.pdf
- https://cdn.shopify.com/s/files/1/0431/7514/9719/files/lagovodulasifuz.pdf
- https://cdn.shopify.com/s/files/1/0436/5982/1209/files/34066200932.pdf
- https://cdn.shopify.com/s/files/1/0434/3565/5335/files/21326183497.pdf
- https://cdn.shopify.com/s/files/1/0428/4760/0796/files/loan_application_form_download.pdf
- https://cdn.shopify.com/s/files/1/0435/3202/6008/files/new_passport_application_form_ds_11.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_off0000639e.binc680804ffca70fe2c8a9dcaa4f07584edbee64e803bdc28af8236f4b34e21b6a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x639E | 5444 bytes |
font_01_sfnt_off000075fe.bin7e22ef89f69b1c74e64095855211e97801c9c6ff4a4df4ec0eb5f0384eaf076d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75FE | 10888 bytes |
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