MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which are disguised as legitimate files hosted on Shopify. These links ultimately redirect to a known malicious domain, ttraff.ru, indicating a link farm or redirection scheme. The ML classifier also strongly flagged this PDF as malicious. The embedded URLs are the primary indicators of malicious activity.
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=definition+nonconformity+science
- http://files.olympusvillas.com/uploads/1/3/0/7/130776655/lajeruxonosufo.pdf
- http://miwuvolik.emmett-technique.us/uploads/1/3/0/8/130813780/7b024596d2925a9.pdf
- http://nipab.jeanstandmeministries.com/uploads/1/3/1/4/131455636/9683046.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/5935/5556/files/57841457033.pdf
- https://cdn.shopify.com/s/files/1/0439/2737/1931/files/93394160870.pdf
- https://cdn.shopify.com/s/files/1/0434/7474/7558/files/92501219303.pdf
- https://cdn.shopify.com/s/files/1/0427/5660/4070/files/college_admission_process.pdf
- https://cdn.shopify.com/s/files/1/0434/7671/3637/files/separador_de_paginas.pdf
- https://cdn.shopify.com/s/files/1/0436/2030/3011/files/58162337563.pdf
- https://cdn.shopify.com/s/files/1/0430/6577/0135/files/karututorowidik.pdf
- https://cdn.shopify.com/s/files/1/0432/5883/9198/files/fugukibaru.pdf
- https://cdn.shopify.com/s/files/1/0437/4088/9240/files/91222328432.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_off00006445.bin0a639c6f1e51cd819d0b56c1af3b0352f1b7c326cc8fc2a1bd38094b6d166cd1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6445 | 4888 bytes |
font_01_sfnt_off000074e1.bin2ce50d1ca08cff52ce58e6bb237f42a095a37a5684e2d79cc72a8905b32d7a30 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74E1 | 12376 bytes |
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