MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.ru) or are structured to appear as legitimate documents on file-sharing services. The ML classifier strongly indicates maliciousness. The primary attack pattern involves a link farm designed to redirect users to potentially harmful content, leveraging SEO-like naming conventions for the PDF files.
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=alimentos+ricos+en+fibra+dietetica+pdf
- http://files.faratuckerlcsw.com/uploads/1/3/1/8/131857920/641b8047b5.pdf
- http://files.emmieannealdersontheatre.com/uploads/1/3/0/7/130775306/67545ec.pdf
- http://sakesaj.fairytalejourneysbyalanna.com/uploads/1/3/1/6/131637814/3294612.pdf
- http://sobokasob.dosterleadershipconference.com/uploads/1/3/1/1/131164250/giwotu.pdf
- https://cdn.shopify.com/s/files/1/0428/3206/8775/files/nubabewavorojedeworad.pdf
- https://cdn.shopify.com/s/files/1/0435/9425/2456/files/bevewuwazojaniwiwa.pdf
- https://cdn.shopify.com/s/files/1/0430/3106/8825/files/ap_biology_chapter_41_reading_guide_answers.pdf
- https://cdn.shopify.com/s/files/1/0427/6187/9719/files/muxuver.pdf
- https://cdn.shopify.com/s/files/1/0428/8672/5799/files/fosotixigepuwevenu.pdf
- https://cdn.shopify.com/s/files/1/0430/4617/4877/files/libijip.pdf
- https://cdn.shopify.com/s/files/1/0432/8449/6550/files/dizugufusufowabavavesuxar.pdf
- https://cdn.shopify.com/s/files/1/0431/3631/9639/files/54628837834.pdf
- https://cdn.shopify.com/s/files/1/0432/6883/3436/files/61172662990.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_off00006595.bin85533036f58096693f1162ed65f854bf463c6bea06212daacec9d4e2c23e14b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6595 | 5432 bytes |
font_01_sfnt_off000077e9.bin4a2f85693ffb168b84c269948579d553798c610dee7e2461c54dea427275f819 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77E9 | 11504 bytes |
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