MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of these links redirects to a known malicious domain (ttraff.com), indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, suggests a lure related to 'Biology book class 10 pdf download'. The ML classifier strongly flagged this PDF as malicious.
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=biology+book+class+10+pdf+download
- http://files.lastwordsfortheroad.com/uploads/1/3/0/8/130874090/1598702.pdf
- http://files.lynngreerart.com/uploads/1/3/0/8/130873807/8bc6b3fd4a41b.pdf
- http://files.coxevolab.org/uploads/1/3/1/3/131380733/b435077a189.pdf
- http://files.newtonchineseschool-1.org/uploads/1/3/2/6/132682878/5051054.pdf
- https://cdn.shopify.com/s/files/1/0430/7140/6234/files/52880513244.pdf
- https://cdn.shopify.com/s/files/1/0431/9110/7752/files/zunotakub.pdf
- https://cdn.shopify.com/s/files/1/0429/3686/0839/files/41569033841.pdf
- https://cdn.shopify.com/s/files/1/0431/8956/7650/files/visozurumaso.pdf
- https://cdn.shopify.com/s/files/1/0431/4929/5770/files/tilup.pdf
- https://cdn.shopify.com/s/files/1/0429/3240/4380/files/95428263344.pdf
- https://cdn.shopify.com/s/files/1/0433/7732/8278/files/sugusom.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lipowu.pdf
- https://cdn.shopify.com/s/files/1/0431/0201/1548/files/96406741692.pdf
- https://cdn.shopify.com/s/files/1/0428/1673/3340/files/47341230210.pdf
- https://cdn.shopify.com/s/files/1/0435/2848/7072/files/jakotukigovuna.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9908973296.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/
- https://cdn.shopify.com/s/files/1/0429/3686/0839/files/415
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006c70.binbeca16b81c1f4ade379debde622512549beaae4c1cc4f67f4140266075822807 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C70 | 5460 bytes |
font_01_sfnt_off00007f17.bin50585988420527cb21fc0b729d23c3d1c9329ca4e3d2fe7bc036d848b16f3a77 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F17 | 10756 bytes |
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