MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains, suggesting a link farm or redirection scheme. One prominent URL, 'https://ttraff.cc/pify?keyword=chemistry+a+level+textbook+answers+edexcel', is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains references to educational materials, likely as a lure.
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=chemistry+a+level+textbook+answers+edexcel
- http://files.kidsinthecockpit.net/uploads/1/3/1/4/131406412/db7698b.pdf
- http://gemuze.pittsburgseafoodandmusicfestival.com/uploads/1/3/1/4/131410227/nezevo.pdf
- http://mugotoru.milwaukeedowntownchiropractic.com/uploads/1/3/0/9/130969179/50876601.pdf
- http://files.uscycs.org/uploads/1/3/1/4/131407148/bejumi.pdf
- https://cdn.shopify.com/s/files/1/0433/0032/3478/files/wakexefogozatimuzasunedoz.pdf
- https://cdn.shopify.com/s/files/1/0433/2588/2520/files/54557094336.pdf
- https://cdn.shopify.com/s/files/1/0432/9557/2126/files/wadegetibati.pdf
- https://cdn.shopify.com/s/files/1/0436/0519/6957/files/nonenebidatugu.pdf
- https://cdn.shopify.com/s/files/1/0435/3402/4855/files/mundra_berthing_report_today.pdf
- https://cdn.shopify.com/s/files/1/0431/0954/8188/files/83843042231.pdf
- https://cdn.shopify.com/s/files/1/0435/0948/1626/files/bawawelepaxoweg.pdf
- https://cdn.shopify.com/s/files/1/0450/3601/1678/files/pujedamezonisobin.pdf
- https://cdn.shopify.com/s/files/1/0431/5031/1579/files/tafis.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004ec1.binfce01f0f3c7af56d52a922dc02fafd80261c0cb857907deb3a7e22ba7b6497e2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4EC1 | 5516 bytes |
font_01_sfnt_off0000616d.bin3d0ee3426770d5b7bc7a0c776bd331e7d6dc9c113d2c012a7a1c3ec183043224 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x616D | 13676 bytes |
font_02_sfnt_off00008d00.bin4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D00 | 4324 bytes |
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