MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.cc/pify?keyword=tri+fold+brochure+blank+template+free'. The document body, though heavily obfuscated, contains this same URL, suggesting it is the primary lure. The presence of a large number of external PDF links, many pointing to Shopify, indicates a link farm strategy, likely to improve SEO for malicious content or to obscure the true destination. The ML classifier strongly supports the malicious nature of this PDF.
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.cc/pify?keyword=tri+fold+brochure+blank+template+free
- http://files.stepup4education.com/uploads/1/3/0/9/130969476/8093307.pdf
- https://cdn.shopify.com/s/files/1/0440/7151/8373/files/85152381138.pdf
- https://cdn.shopify.com/s/files/1/0432/5530/0249/files/zoo_animals_flashcards.pdf
- https://cdn.shopify.com/s/files/1/0428/3210/1543/files/logofifodobirufake.pdf
- https://cdn.shopify.com/s/files/1/0457/6690/1924/files/scala_functional_programming_patterns.pdf
- https://cdn.shopify.com/s/files/1/0440/6847/0936/files/windows_installer_3._1.pdf
- https://cdn.shopify.com/s/files/1/0432/9095/1848/files/d_d_knight_class.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63912397784.pdf
- https://cdn.shopify.com/s/files/1/0455/3906/6021/files/46783679339.pdf
- https://cdn.shopify.com/s/files/1/0432/3858/8573/files/22223922311.pdf
- https://cdn.shopify.com/s/files/1/0427/9848/1564/files/76708671472.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_off00004ec9.binb642343dcffa5be0e9d12d01ad453d42796a8a64e8bf7149dbc50cae1da96dbd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4EC9 | 5368 bytes |
font_01_sfnt_off000060db.bin13ed50bfe8f65f565396ffb4f6ccf5f5e9bc7e48acc0456b79000cb537c3e632 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60DB | 12780 bytes |
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