MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a mass of external links, including a known malicious redirector at 'https://ttraff.ru/pify?keyword=graphing+linear+equations+vocabulary+worksheet+pdf'. The document body, though heavily obfuscated, contains text that appears to be a lure related to educational worksheets. The ML classifier strongly indicates maliciousness, and the presence of numerous PDF links suggests a link farm or redirection strategy.
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=graphing+linear+equations+vocabulary+worksheet+pdf
- http://files.deanzamoa.org/uploads/1/3/1/3/131398455/4580474.pdf
- http://files.delaneyswiftart.com/uploads/1/3/1/4/131453598/6df31149.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/4023/4917/files/domine_las_aperturas_de_ajedrez_gratis.pdf
- https://cdn.shopify.com/s/files/1/0430/7035/7653/files/60976323997.pdf
- https://cdn.shopify.com/s/files/1/0430/8720/0418/files/pre_order_traversal.pdf
- https://cdn.shopify.com/s/files/1/0439/9045/0334/files/fivuzuvitir.pdf
- https://cdn.shopify.com/s/files/1/0433/6458/1525/files/fowonipipamijuxokefi.pdf
- https://cdn.shopify.com/s/files/1/0434/0305/1175/files/arifureta_novela_ligera_descargar.pdf
- https://cdn.shopify.com/s/files/1/0432/3141/2379/files/jevekigowekilukabidin.pdf
- https://cdn.shopify.com/s/files/1/0432/1512/6692/files/2939209069.pdf
- https://cdn.shopify.com/s/files/1/0432/7754/9726/files/96818132292.pdf
- https://cdn.shopify.com/s/files/1/0433/0684/4315/files/transport_through_cell_membrane.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3100392900.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_off00009d26.bin59596cf273fad89ff0ce5000c6d7d36fbeeefaf2c0628c9e9fccc1c144a3fb28 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9D26 | 6032 bytes |
font_01_sfnt_off0000b1bb.bin3c92738146a4230bac48003eb6816419d67b4553ad70ae11618cbf0ed387772f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1BB | 16200 bytes |
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