MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a heuristic firing for linking to known malicious redirector infrastructure, specifically `https://ttraff.cc/pify?keyword=biology+campbell+reece+pdf`. It also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and several benign-looking Shopify URLs, suggesting a lure to download content that ultimately leads to the malicious redirector.
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=biology+campbell+reece+pdf
- http://files.findyourporch.com/uploads/1/3/0/7/130776267/tifen.pdf
- http://didati.joeledoux.com/uploads/1/3/0/7/130776760/foloki_mapewuladalijo.pdf
- http://files.rushinghomerentals.com/uploads/1/3/0/7/130775528/7c25d60d68d7c.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0439/3166/4552/files/69117662245.pdf
- https://cdn.shopify.com/s/files/1/0432/6244/3683/files/24174909715.pdf
- https://cdn.shopify.com/s/files/1/0437/1356/0727/files/linear_algebra_friedberg_solutions.pdf
- https://cdn.shopify.com/s/files/1/0431/5276/9192/files/jafibigewakuxogere.pdf
- https://cdn.shopify.com/s/files/1/0435/6590/8136/files/que_son_energias_renovables.pdf
- https://cdn.shopify.com/s/files/1/0428/8797/0975/files/86914968919.pdf
- https://cdn.shopify.com/s/files/1/0430/9798/1082/files/51139673371.pdf
- https://cdn.shopify.com/s/files/1/0435/2396/5079/files/16804414534.pdf
- https://cdn.shopify.com/s/files/1/0439/8841/8718/files/bafoliwopetivekuwokosozu.pdf
- https://cdn.shopify.com/s/files/1/0431/4441/3341/files/kulimukegorotaxumej.pdf
- https://cdn.shopify.com/s/files/1/0430/6278/8245/files/xebudopesabenusukubo.pdf
- https://cdn.shopify.com/s/files/1/0429/5147/5351/files/6526718247.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_off0000647d.bin4d1956cf8c576438c766962171ed6a4018d0d2a8c4addb8f235a6fcc8a88c0a4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x647D | 5588 bytes |
font_01_sfnt_off00007760.bin9e600b4c81ff8cc297b7896472837b940e31eae298598c5f8291b3d8e293395c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7760 | 10420 bytes |
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