MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains multiple embedded links, with one critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to an 'English course syllabus for beginner' and a URL that appears to be a lure. The ML classifier strongly flagged this PDF as malicious. The primary attack pattern involves redirecting users to malicious sites via these links.
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.com/pify?keyword=english+course+syllabus+for+beginner
- http://files.mariposaband.com/uploads/1/3/2/6/132695525/tojewakop-rulirazuwiw-rurote.pdf
- https://cdn.shopify.com/s/files/1/0433/0379/6894/files/35449090430.pdf
- https://cdn.shopify.com/s/files/1/0432/1509/3917/files/xawuxurafa.pdf
- https://cdn.shopify.com/s/files/1/0429/6700/7386/files/bikodora.pdf
- https://cdn.shopify.com/s/files/1/0430/7959/8229/files/jubuzuxepi.pdf
- https://cdn.shopify.com/s/files/1/0437/3112/4385/files/jefufunuzideparax.pdf
- https://cdn.shopify.com/s/files/1/0448/1508/9825/files/applications_of_derivatives_class_12_ncert_solutions.pdf
- https://cdn.shopify.com/s/files/1/0437/6340/0861/files/information_about_apiculture_centre_and_gather.pdf
- https://cdn.shopify.com/s/files/1/0434/2769/2695/files/75653616733.pdf
- https://cdn.shopify.com/s/files/1/0435/1072/6815/files/casio_fx_991_ce_x.pdf
- https://cdn.shopify.com/s/files/1/0432/9711/2219/files/beseneru.pdf
- https://cdn.shopify.com/s/files/1/0434/5158/0568/files/3669221383.pdf
- https://cdn.shopify.com/s/files/1/0428/7945/1289/files/normalidad_y_anormalidad_de_la_personalidad.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005a3a.bin290664fe8be4247d1bb299ab9fd38785ddee74479837a7db0ac5841f54014214 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A3A | 5144 bytes |
font_01_sfnt_off00006bb3.bin8a588ed42ec6d7c50b060c6aa7a8b56d8ae32e436176b7560f9e1196a1897d8a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BB3 | 9936 bytes |
font_02_sfnt_off00008da6.bin05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8DA6 | 4324 bytes |
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