MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is likely the primary malicious payload delivery mechanism. 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.com/pify?keyword=intermediate+cuneiform+fracture+radiology
- http://files.jbdpta.com/uploads/1/3/0/9/130969356/1484727.pdf
- http://files.ajeplanners.com/uploads/1/3/1/4/131406816/sifojopese_nidukuzinagimo_xutokajofuzi_roxurugar.pdf
- http://buwiwe.anahataheart.com/uploads/1/3/1/3/131398140/6965856.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0440/5110/3894/files/kontakt_5._6._5_r2r.pdf
- https://cdn.shopify.com/s/files/1/0433/5576/6942/files/platform_toolset_visual_studio.pdf
- https://cdn.shopify.com/s/files/1/0431/2940/5600/files/welinoxoromuwutizefawole.pdf
- https://cdn.shopify.com/s/files/1/0436/2479/2224/files/15547588908.pdf
- https://cdn.shopify.com/s/files/1/0433/6690/8054/files/witudojoruwudarufef.pdf
- https://cdn.shopify.com/s/files/1/0434/0318/2243/files/kasoxiponogisujitibafo.pdf
- https://cdn.shopify.com/s/files/1/0432/3475/4728/files/77499653247.pdf
- https://cdn.shopify.com/s/files/1/0437/9721/7440/files/tratamiento_de_la_sinusitis.pdf
- https://cdn.shopify.com/s/files/1/0450/6012/8931/files/inserir_assinatura_digital_em_arquivo.pdf
- https://cdn.shopify.com/s/files/1/0431/0876/1764/files/80679091996.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_off00005e3d.bin06c668a25f50ca530b56b8d2a516c9c4d00c3b9448072b953dc639d0897a8239 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E3D | 5200 bytes |
font_01_sfnt_off00006fda.bin34b772799bded767a2e4e36b6eb398020c7e8d1a0ff7634f7c504b4280324c5f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FDA | 10376 bytes |
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