MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that lead to a redirector service, which is a common tactic for distributing malware or phishing pages. The document body, though heavily obfuscated, contains text related to educational materials and a URL that appears to be a lure. The ML classifier strongly indicated maliciousness, and the PDF structure itself contains numerous links, many pointing to benign Shopify domains but one critical link to a known 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.com/pify?keyword=cambridge+igcse+business+studies+student+book+pdf
- http://rarujinaf.objectpages.com/uploads/1/3/1/4/131453872/jogadug_falerun_visimuleve_fibawesazu.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://cdn.shopify.com/s/files/1/0439/0299/2536/files/google_sheet_to.pdf
- https://cdn.shopify.com/s/files/1/0431/4939/4071/files/90992157282.pdf
- https://cdn.shopify.com/s/files/1/0434/3480/3352/files/ginujonulatafak.pdf
- https://cdn.shopify.com/s/files/1/0429/6340/2905/files/48381263844.pdf
- https://cdn.shopify.com/s/files/1/0434/3028/1377/files/87555674113.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zobirunutopuwipigodilig.pdf
- https://cdn.shopify.com/s/files/1/0440/3894/6981/files/6956611475.pdf
- https://cdn.shopify.com/s/files/1/0438/3395/0358/files/arithmetic_progression_class_10.pdf
- https://cdn.shopify.com/s/files/1/0428/5480/9759/files/jopatuvaferadu.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004813.bin32eabcf06724f6677a55ba2d36aa26e43cc2ea93af9006152b00d15b9e21a7c3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4813 | 5552 bytes |
font_01_sfnt_off00005ae3.binf446e90b85ef48ed70d0d2c7ce54a980066679862309601e76ba3e5ca5201cda |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5AE3 | 10168 bytes |
font_02_sfnt_off00007d9e.bin1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D9E | 4324 bytes |
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