MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links, with the primary one pointing to a known malicious redirector. Several heuristics indicate this PDF is part of a link farm, likely for SEO poisoning or to distribute malicious content. The ML classifier also strongly flagged this PDF as malicious. The embedded URL 'https://ttraff.ru/pify?keyword=solving+inequalities+pdf+worksheet' is the most critical IOC.
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=solving+inequalities+pdf+worksheet
- http://files.ardsbattalionbb.org/uploads/1/3/1/3/131398367/juluz.pdf
- http://xokone.kengallucciocup.com/uploads/1/3/0/7/130776499/84c6fc6a77fa.pdf
- http://files.erictigley.com/uploads/1/3/2/6/132696029/8971624.pdf
- http://kesema.operationcleanoutia.com/uploads/1/3/0/7/130738970/c69b832470f.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0436/9380/1625/files/welebeju.pdf
- https://cdn.shopify.com/s/files/1/0430/9801/3845/files/55946479205.pdf
- https://cdn.shopify.com/s/files/1/0427/6482/8839/files/14918349994.pdf
- https://cdn.shopify.com/s/files/1/0428/8492/3555/files/grade_9_english_module_4_anglo_american_literature.pdf
- https://cdn.shopify.com/s/files/1/0431/9471/2228/files/batewufetiruzuva.pdf
- https://cdn.shopify.com/s/files/1/0436/9262/1978/files/90341406986.pdf
- https://cdn.shopify.com/s/files/1/0428/2613/7756/files/vubofagilareragalumulaxew.pdf
- https://cdn.shopify.com/s/files/1/0430/6888/3106/files/7806962092.pdf
- https://cdn.shopify.com/s/files/1/0434/8739/6004/files/boost_your_self_esteem.pdf
- https://cdn.shopify.com/s/files/1/0434/4227/4454/files/mobo_market_downloads.pdf
- https://cdn.shopify.com/s/files/1/0431/7505/1415/files/78119407667.pdf
- https://cdn.shopify.com/s/files/1/0440/6296/5912/files/fepupejorevukadenip.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_off0000869b.bin9a09987d9b6018159fca9fd8387cf2e09e03aa9aa36b9156bc4bd4e0d149498b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x869B | 5748 bytes |
font_01_sfnt_off00009a35.bin44a4ed0655c5de1951cb54195e01dab7d9d99dbf8dba564ac8a2d7a8e46d0a9d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A35 | 15592 bytes |
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