MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or SEO poisoning attempt. One of the primary links, 'https://ttraff.ru/pify?keyword=oswaal+books+for+class+11+maths+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains similar keywords and URLs, reinforcing the lure. 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=oswaal+books+for+class+11+maths+pdf
- http://tabele.distantseasministries.com/uploads/1/3/2/3/132303195/gowig.pdf
- http://files.milleratcree.org/uploads/1/3/1/4/131452938/3791336.pdf
- http://kojuf.apolloartists.net/uploads/1/3/0/8/130873738/soratemovuf-wejew-xovowiwurawimo.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/8933/7256/files/interview_questions_on_javascript_for_freshers_with_answers.pdf
- https://cdn.shopify.com/s/files/1/0430/6790/0061/files/78225127539.pdf
- https://cdn.shopify.com/s/files/1/0431/5044/2660/files/barashada_salaada.pdf
- https://cdn.shopify.com/s/files/1/0427/4687/1974/files/levilakawa.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72163988246.pdf
- https://cdn.shopify.com/s/files/1/0437/4088/9242/files/sutifirasudabum.pdf
- https://cdn.shopify.com/s/files/1/0435/6934/8763/files/50504512110.pdf
- https://cdn.shopify.com/s/files/1/0431/7279/0428/files/47998108635.pdf
- https://cdn.shopify.com/s/files/1/0439/4565/6488/files/zejerogeluta.pdf
- https://cdn.shopify.com/s/files/1/0431/9540/0356/files/jatujerigefemik.pdf
- https://cdn.shopify.com/s/files/1/0446/2634/6147/files/list_of_car_makes_and_models_excel.pdf
- https://cdn.shopify.com/s/files/1/0432/5651/2680/files/7318394287.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_off000064fc.bind1081d092a69775c867454ff430f95382416aa1c08774bb7015878b40b09b8e5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64FC | 5772 bytes |
font_01_sfnt_off00007883.bineef4446c66bf034337aa32f149b5f2d3dcf19160a0e3b59648be634dbc4288b8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7883 | 10184 bytes |
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