MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic identified a link to known malicious redirector infrastructure at https://ttraff.ru/pify?keyword=esquire+uk+christmas+gift+guide. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same redirector URL, suggesting a lure to a malicious site disguised as a gift guide.
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=esquire+uk+christmas+gift+guide
- http://guwara.imperialgrp.com/uploads/1/3/0/7/130776213/desubupufow_lugakuxixa.pdf
- http://files.appletreecontractors.com/uploads/1/3/1/6/131607712/9709263.pdf
- http://files.fuelbarhealth.com/uploads/1/3/1/0/131071056/8851286.pdf
- https://cdn.shopify.com/s/files/1/0431/7180/7391/files/ruwafubipew.pdf
- https://cdn.shopify.com/s/files/1/0428/4219/4083/files/dajefugidilepiposeko.pdf
- https://cdn.shopify.com/s/files/1/0431/9975/8498/files/and_but_so_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0431/6073/1803/files/57362451654.pdf
- https://cdn.shopify.com/s/files/1/0432/0110/1984/files/rudram_namakam_telugu_download.pdf
- https://cdn.shopify.com/s/files/1/0430/0469/0581/files/65947764313.pdf
- https://cdn.shopify.com/s/files/1/0437/6654/6583/files/37672743861.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lojuxefututa.pdf
- https://cdn.shopify.com/s/files/1/0438/1753/3597/files/21416620975.pdf
- https://cdn.shopify.com/s/files/1/0432/3488/5796/files/tsp_70_form.pdf
- https://cdn.shopify.com/s/files/1/0430/6989/8913/files/precalculus_with_limits_3e_chapter_6.pdf
- https://cdn.shopify.com/s/files/1/0435/4097/1674/files/perupulubapumiri.pdf
- https://cdn.shopify.com/s/files/1/0435/2340/8032/files/goxazonew.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_off00006feb.bin7a043359497177618a8163226c5cab9633af4492cc848aa0077bbd37071222b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FEB | 5548 bytes |
font_01_sfnt_off0000829d.bindd1775c320aca3fbb40b69d4025ef60d4d514079bd7e1c9cd9be639eda2d59c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x829D | 10700 bytes |
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