MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains URLs that are part of a link farm, with one specifically pointing to a redirector. This suggests the primary purpose is to lure users to malicious sites.
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=student+centered+learning+theory+pdf
- http://files.robpartis.co.uk/uploads/1/3/0/7/130775520/d43ef80b31b09eb.pdf
- http://getono.phsgolf.net/uploads/1/3/0/7/130775380/4763031.pdf
- https://cdn.shopify.com/s/files/1/0431/3546/7669/files/soferupinugurenunasodebo.pdf
- https://cdn.shopify.com/s/files/1/0431/8475/0747/files/kudotexesetuguxawarinag.pdf
- https://cdn.shopify.com/s/files/1/0439/5266/8830/files/52269046143.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tugomedimugatusigoxafif.pdf
- https://cdn.shopify.com/s/files/1/0433/9957/7756/files/58561736980.pdf
- https://cdn.shopify.com/s/files/1/0456/8360/5663/files/android_bundle_fragment_example.pdf
- https://cdn.shopify.com/s/files/1/0434/7658/2552/files/bijadovuzofugifubowani.pdf
- https://cdn.shopify.com/s/files/1/0465/3491/8302/files/pabejaligukukufaga.pdf
- https://cdn.shopify.com/s/files/1/0440/7102/6853/files/introductory_to_circuit_analysis_13th_edition.pdf
- https://cdn.shopify.com/s/files/1/0437/8607/6309/files/bapazepojufober.pdf
- https://cdn.shopify.com/s/files/1/0437/2011/4331/files/83948422032.pdf
- https://cdn.shopify.com/s/files/1/0437/6159/8616/files/fundamental_of_stock_market.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_off00006805.bina9eab3deb57873d4b9d900d6b29416e649504ece082be44aa509a96158a879e2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6805 | 5444 bytes |
font_01_sfnt_off00007a83.binb47964b1db78f6b6a7de5fe46c755ab7379b6c441f3372f7ad695e25c340c15f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A83 | 10104 bytes |
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