MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link disguised as an educational resource, which redirects to a known malicious domain. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms this, and the ML_NYX_PDF_MALICIOUS score indicates a high probability of malicious intent. The document body, though heavily obfuscated, contains text related to 'inverse variation problem solving' and the malicious URL, suggesting a lure to a scam or phishing site.
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/wix?keyword=inverse+variation+problem+solving+with+answers
- https://cdn.shopify.com/s/files/1/0431/3628/6877/files/67039325789.pdf
- https://cdn.shopify.com/s/files/1/0435/2226/1143/files/pharmacy_technician_practice_test.pdf
- https://cdn.shopify.com/s/files/1/0435/0876/0735/files/27835478288.pdf
- https://static.usrfiles.com/ugd/d4a9d6_01addc3bb66f460288916c259302a785.pdf
- https://static.usrfiles.com/ugd/77eba6_5d1b3ce60cce49b982066f8701e4ba16.pdf
- https://cdn.shopify.com/s/files/1/0435/2750/4024/files/tesaze.pdf
- https://cdn.shopify.com/s/files/1/0431/6636/7895/files/2005_ford_escape_repair_manual.pdf
- https://cdn.shopify.com/s/files/1/0428/3102/0198/files/fenelawis.pdf
- https://static.usrfiles.com/ugd/0fdb6d_4c468c68bbc648fe880b9d37cd95a052.pdf
- https://static.usrfiles.com/ugd/1c90dc_6929bc9144ef44659005c1bca3f8d011.pdf
- https://static.usrfiles.com/ugd/8e1900_d92574f6b8b849a58dcb99e5390c03bf.pdf
- https://static.usrfiles.com/ugd/73c254_d4a7f39026bb447888d6fefffc98c4a5.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005b7e.bin713c5051d37426afefced57dd55c4509bdb8bfba789c1db279cf5cb1b8e1a7fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B7E | 5460 bytes |
font_01_sfnt_off00006df7.bin60683af501c6e1b824b46743d768cd37daa04058279025c71fc1049cd0074b90 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DF7 | 10476 bytes |
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