MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many pointing to benign Shopify URLs, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to educational worksheets and also repeats the malicious URL, suggesting a lure to trick users into clicking it. The presence of embedded URLs and the ML classifier's high confidence indicate malicious intent.
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/wb?keyword=uniformly%20accelerated%20particle%20model%20worksheet%205%20quantitative%20acceleration%20problems
- http://files.pinkpapayasblog.com/uploads/1/3/1/6/131606366/7205486.pdf
- http://files.journeytolegacy.com/uploads/1/3/1/3/131379844/2809249.pdf
- http://files.amodeosfarm.com/uploads/1/3/2/7/132712306/jitikew.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/0609/9605/files/yamaha_rx-_v675_manual.pdf
- https://cdn.shopify.com/s/files/1/0437/8004/6997/files/50634177805.pdf
- https://cdn.shopify.com/s/files/1/0432/9147/6133/files/binomio_de_newton.pdf
- https://cdn.shopify.com/s/files/1/0430/5630/0186/files/boxizekimiduzovef.pdf
- https://cdn.shopify.com/s/files/1/0428/8924/8924/files/audi_0-_60_times.pdf
- https://cdn.shopify.com/s/files/1/0436/3019/8937/files/84960131288.pdf
- https://cdn.shopify.com/s/files/1/0429/7441/2949/files/kozimukig.pdf
- https://cdn.shopify.com/s/files/1/0435/5276/8151/files/vesaz.pdf
- https://cdn.shopify.com/s/files/1/0433/7929/4358/files/vasiretelajunev.pdf
- https://cdn.shopify.com/s/files/1/0434/5564/3813/files/social_aspects_of_development.pdf
- https://cdn.shopify.com/s/files/1/0430/4135/7973/files/bopewotisovaf.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_off00004c5b.bin9547eda78448ee97fe713d6edd23110bd1ca19de4f050252e2da1bac9e8f1702 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4C5B | 6092 bytes |
font_01_sfnt_off00006100.binc34b121c45e137a6da28da98b5295ba8b24b917e8cb8e5b2aa0cad69d0b31229 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6100 | 11944 bytes |
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