MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many pointing to PDF files hosted on Shopify and other domains, suggesting a link farm or SEO manipulation tactic. One prominent URL, https://ttraff.ru/pify?keyword=lullaby+of+birdland+alto+sax+sheet+music, is flagged as a malicious redirector, indicating a likely attempt to lead users to malicious content. The ML classifier also strongly indicated maliciousness.
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=lullaby+of+birdland+alto+sax+sheet+music
- http://xivozeka.247racefuels.com/uploads/1/3/2/7/132712615/zukanapunizakezun.pdf
- http://files.artivism2019.com/uploads/1/3/1/8/131872238/sasibivos-zosuxuposepo.pdf
- http://files.oxfordstation.pl/uploads/1/3/1/8/131856333/nawidesozugojozasod.pdf
- http://petitaz.khsphotographers.com/uploads/1/3/1/1/131164250/zekelixo.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/1816/6167/files/buxaleko.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52209678420.pdf
- https://cdn.shopify.com/s/files/1/0435/5021/2264/files/collins_regional_anesthesia_free_download.pdf
- https://cdn.shopify.com/s/files/1/0434/9735/7472/files/verizon_dbir_2017.pdf
- https://cdn.shopify.com/s/files/1/0434/2710/2876/files/balevexiluvufefede.pdf
- https://cdn.shopify.com/s/files/1/0429/6874/4087/files/repusipajulupiwumeraxez.pdf
- https://cdn.shopify.com/s/files/1/0429/2100/1119/files/kijasitoxuzowuxumutavofug.pdf
- https://cdn.shopify.com/s/files/1/0432/3396/8287/files/skf_ball_bearing_catalog_download.pdf
- https://cdn.shopify.com/s/files/1/0431/1187/4716/files/jomuzebizutosunimavi.pdf
- https://cdn.shopify.com/s/files/1/0437/3138/6517/files/2002_mitsubishi_eclipse_owners_manual.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_off000057e3.binbb7f71afc2274fcccbe11bda81d49ecabb9cda934704481efd0d8b169d85c736 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x57E3 | 5512 bytes |
font_01_sfnt_off00006a7f.bin9ba820a3f182476fdaf14f68abab1831d5e20d1893d235d6004b633c5b133f38 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A7F | 10652 bytes |
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