MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links, with one specifically pointing to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be part of a link farm designed to distribute other PDFs. The ML classifier strongly indicated maliciousness, and the presence of a malicious redirector suggests an attempt to lead the user to a malicious site, likely for further exploitation or credential harvesting.
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=edexcel+gcse+maths+functions+questions+and+answers
- http://pazuwan.ryashini.com/uploads/1/3/1/0/131070702/c4a2ba698.pdf
- http://sifiz.alexnewcombe.com/uploads/1/3/1/0/131070858/jesotuko.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/4939/4071/files/kant_s_categorical_imperative.pdf
- https://cdn.shopify.com/s/files/1/0439/1757/4299/files/60541905034.pdf
- https://cdn.shopify.com/s/files/1/0432/3419/7666/files/7280208755.pdf
- https://cdn.shopify.com/s/files/1/0433/9856/1957/files/21493233783.pdf
- https://cdn.shopify.com/s/files/1/0440/7204/2661/files/4389115705.pdf
- https://cdn.shopify.com/s/files/1/0433/4416/7064/files/lowabetoxoxoz.pdf
- https://cdn.shopify.com/s/files/1/0441/1051/2280/files/marine_biodiversity_hotspots_and_conservation_priorities_for_tropical_reefs.pdf
- https://cdn.shopify.com/s/files/1/0434/9739/0244/files/tuzija.pdf
- https://cdn.shopify.com/s/files/1/0431/9156/6493/files/59102714769.pdf
- https://cdn.shopify.com/s/files/1/0429/9125/5713/files/tawolodasonulelegesikif.pdf
- https://cdn.shopify.com/s/files/1/0432/5448/1058/files/gugukote.pdf
- https://cdn.shopify.com/s/files/1/0431/7980/2782/files/48352374408.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_off000078eb.bind1bd313f694c9210ca5c217073e023cb5746f14995ec0142d950756532e21987 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78EB | 5676 bytes |
font_01_sfnt_off00008c2a.binf4ca2073d34a5b90647053e243a41fe4f8dbadfa4e0096689a9f017300f8588f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8C2A | 10340 bytes |
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