MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm designed to appear as free book downloads, with the primary malicious redirector URL being https://ttraff.ru/pify?keyword=direct+and+alternating+current+machinery+2nd+edition+pdf+free+download. This heuristic firing indicates the document's intent is to redirect users to potentially harmful content. The ML classifier strongly supports the malicious nature of this PDF.
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=direct+and+alternating+current+machinery+2nd+edition+pdf+free+download
- http://files.cruzlaminates.com/uploads/1/3/1/4/131453062/6455430.pdf
- http://files.rentedfashion.com/uploads/1/3/0/7/130776015/7992082.pdf
- http://files.acestudio.be/uploads/1/3/1/3/131383964/gipasixojejat.pdf
- https://cdn.shopify.com/s/files/1/0433/7880/2846/files/mulakap.pdf
- https://cdn.shopify.com/s/files/1/0450/7992/0803/files/cancionero_camino_neocatecumenal.pdf
- https://cdn.shopify.com/s/files/1/0432/7066/8453/files/24560532362.pdf
- https://cdn.shopify.com/s/files/1/0450/4177/8838/files/advanced_calculus_for_applications_hildebrand.pdf
- https://cdn.shopify.com/s/files/1/0430/3234/6773/files/the_famished_road_analysis.pdf
- https://cdn.shopify.com/s/files/1/0431/7547/7407/files/lasobulesugatupobobokev.pdf
- https://cdn.shopify.com/s/files/1/0429/9702/2871/files/najevedubizororefe.pdf
- https://cdn.shopify.com/s/files/1/0431/1223/5174/files/buvuf.pdf
- https://cdn.shopify.com/s/files/1/0452/9078/2881/files/aadhar_card_download_online_by_aadhaar_number.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_off00004dde.bind910961aca1e6cf833358563feae1b4156eff1b3dcf5725918afabed1299ead2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4DDE | 5716 bytes |
font_01_sfnt_off00006143.bin4ac59708e126821efb7f7f5e26f748a1fa1a784f244a08a26a6c853c1feecdb1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6143 | 9520 bytes |
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