MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify, suggesting an attempt at SEO manipulation. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=ora%25C3%25A7%25C3%25A3o+subordinada+adjetiva+exercicios+com+gabarito+9+ano'. While no scripts were directly extracted, the PDF structure and the presence of embedded URLs indicate a malicious intent to redirect users to potentially harmful 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=ora%25C3%25A7%25C3%25A3o+subordinada+adjetiva+exercicios+com+gabarito+9+ano
- http://files.jasonicholas.com/uploads/1/3/1/4/131453588/jeruzitito_gulabet_masakovanijipak_kovinafipez.pdf
- http://kitigasiw.aleafintheforest.com/uploads/1/3/0/9/130969723/947591.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/9019/8180/files/20165308962.pdf
- https://cdn.shopify.com/s/files/1/0433/8181/7495/files/91527391015.pdf
- https://cdn.shopify.com/s/files/1/0432/7673/0533/files/l_adjectif_attribut_et_pithte.pdf
- https://cdn.shopify.com/s/files/1/0433/3902/2494/files/zepajiremu.pdf
- https://cdn.shopify.com/s/files/1/0446/2762/4099/files/iot_based_home_automation.pdf
- https://cdn.shopify.com/s/files/1/0432/6562/2184/files/vewinavixasilemijuxu.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/godikuka.pdf
- https://cdn.shopify.com/s/files/1/0433/9118/9157/files/47692460.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006678.bin76383e089be17b2b270c3c2d19aa6269c4ee9b72b0cf09ca917394b8ca077f4d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6678 | 6256 bytes |
font_01_sfnt_off00007ad0.bin51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AD0 | 1800 bytes |
font_02_sfnt_off0000835e.bin5b599b71843d37ae01c866333775b51e9650a7da8e6512684b3e06ab841034a1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x835E | 12620 bytes |
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