MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link that redirects to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body text and embedded URLs suggest a lure related to downloading a programming book, which is a common tactic for phishing or malware distribution. The ML classifier also strongly flagged this PDF as malicious.
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.cc/wix?keyword=descargar+libro+programacion+en+c+++para+ingenieros
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0439/6518/6206/files/asic_design_flow_full_form.pdf
- https://cdn.shopify.com/s/files/1/0438/9643/8936/files/walter_isaacson_einstein_his_life_an.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/41557636134.pdf
- https://cdn.shopify.com/s/files/1/0436/1197/9939/files/hideout_tv_sign_up.pdf
- https://cdn.shopify.com/s/files/1/0437/9715/1904/files/carcinogenos_biologicos.pdf
- https://cdn.shopify.com/s/files/1/0430/0128/2719/files/subaru_impreza_service_manual.pdf
- https://cdn.shopify.com/s/files/1/0433/2729/1544/files/tipos_de_adjetivos_en_espaol.pdf
- https://cdn.shopify.com/s/files/1/0429/7159/4911/files/sevibupesokofog.pdf
- https://static.usrfiles.com/ugd/286fb8_75b6537d7d88412caf601503f3ce4f98.pdf
- https://static.usrfiles.com/ugd/b8c837_2986a01e740a42bebdd0852c6651dd67.pdf
- https://cdn.shopify.com/s/files/1/0438/4053/6736/files/rawiriba.pdf
- https://cdn.shopify.com/s/files/1/0438/3938/9856/files/widurisorolexek.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_off00005864.bin9b03ceac62fd38935ea7c00df60726e655792c92f9945dfe45cb987bf1ec6bf8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5864 | 5392 bytes |
font_01_sfnt_off00006aa0.bin0e426e0278b1313012a76897d1ebf764d51932a028fcc16571bc16f6aa17568b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AA0 | 11332 bytes |
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