MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link to a known malicious redirector infrastructure, which is a common tactic for phishing and malware distribution. The document body, though heavily obfuscated, contains the malicious URL and numerous other benign-looking PDF links, suggesting a link farm or SEO poisoning attempt. The ML classifier also 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=clinical+chemistry+2+bishop+pdf
- http://files.fbcfnh.com/uploads/1/3/2/6/132681304/9237211.pdf
- http://gaxen.justsaybeadz.com/uploads/1/3/1/3/131384721/4559760.pdf
- http://files.eastcoastdancenj.com/uploads/1/3/2/6/132696330/5c09170a4.pdf
- http://files.orilingo.com/uploads/1/3/1/8/131871721/pimujosabimuxi.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/4214/3397/files/tepiwekereferajotofowud.pdf
- https://cdn.shopify.com/s/files/1/0431/3628/6877/files/najabepo.pdf
- https://cdn.shopify.com/s/files/1/0434/7097/9237/files/lezikaxuworap.pdf
- https://cdn.shopify.com/s/files/1/0431/1190/7488/files/automorphism_in_group_theory.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48054684450.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75130531250.pdf
- https://cdn.shopify.com/s/files/1/0431/5742/2229/files/dufaxanizax.pdf
- https://cdn.shopify.com/s/files/1/0434/4568/2328/files/jidifikonajutotozorapatop.pdf
- https://cdn.shopify.com/s/files/1/0440/6686/5302/files/ranumapet.pdf
- https://cdn.shopify.com/s/files/1/0430/9296/7581/files/neither_nor_either_or.pdf
- https://cdn.shopify.com/s/files/1/0440/6634/1029/files/27711758579.pdf
- https://cdn.shopify.com/s/files/1/0430/8090/8954/files/30251280586.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_off000042fe.bin1e8eaff3d19b5070adcee5373d56600b41d7ae75c594bf34037cd4ec4f98ce3f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x42FE | 5676 bytes |
font_01_sfnt_off00005606.bin372d9761e05de36a175ff433a1c0f697c16716fc94e6369f41ed7c42a48083b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5606 | 9180 bytes |
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