MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that point to known malicious redirector infrastructure, specifically `https://ttraff.ru/pify?keyword=classroom+english+vocabulary+pdf`. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to disguise its malicious nature. The presence of numerous external links, many pointing to Shopify domains, indicates a link farm strategy, likely to improve search engine ranking for malicious content or to obscure the true destination.
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=classroom+english+vocabulary+pdf
- http://toxavi.mintzathletics.com/uploads/1/3/2/8/132814930/a3af5b7a5af4cfb.pdf
- http://files.freedom-conspiracy.com/uploads/1/3/0/7/130740297/notoxegep.pdf
- http://files.preciousprairieplants.com/uploads/1/3/0/7/130775987/fabavetosakufex.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0438/0668/7389/files/44668851885.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pelezegagujagemubejapo.pdf
- https://cdn.shopify.com/s/files/1/0429/7018/5879/files/baptism_certificate_template_fillable.pdf
- https://cdn.shopify.com/s/files/1/0432/8570/8953/files/carbohidratos_disacaridos.pdf
- https://cdn.shopify.com/s/files/1/0434/7930/2296/files/68081382393.pdf
- https://cdn.shopify.com/s/files/1/0429/3056/9382/files/47178486745.pdf
- https://cdn.shopify.com/s/files/1/0437/7336/2325/files/22428144665.pdf
- https://cdn.shopify.com/s/files/1/0430/8706/9348/files/lerajuzav.pdf
- https://cdn.shopify.com/s/files/1/0433/9154/9590/files/organic_compound_chemistry.pdf
- https://cdn.shopify.com/s/files/1/0427/8393/2582/files/45860295701.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_off00007e63.bin4c3cdce86549954c4d9110a1d4352099deb08ca2ffff8a912a58a4f964c73df8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E63 | 5776 bytes |
font_01_sfnt_off000091e3.bin31e85c7ae7e9d762612988da1c0d1d42bb57a2e7a476fe94014047d31875c646 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x91E3 | 9956 bytes |
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