MALICIOUS
154
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 Shopify domains hosting other PDFs, but one critical link directs to a known malicious redirector. The document body, though obfuscated, contains the text 'Kirkpatrick model of curriculum evaluation pdf' and the malicious URL, suggesting a lure to disguise the malicious intent. 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=kirkpatrick+model+of+curriculum+evaluation+pdf
- http://files.juliaberry.org/uploads/1/3/0/7/130775304/tezutu-paxivefi.pdf
- http://files.graffitiwgratitude.com/uploads/1/3/0/7/130738814/808e7b1556b9ad.pdf
- http://files.judyblakeney.us/uploads/1/3/1/3/131379712/8893932.pdf
- https://cdn.shopify.com/s/files/1/0432/2571/0750/files/39689630039.pdf
- https://cdn.shopify.com/s/files/1/0439/4424/7451/files/manefiwenas.pdf
- https://cdn.shopify.com/s/files/1/0431/1754/3588/files/3830296394.pdf
- https://cdn.shopify.com/s/files/1/0437/5399/6442/files/15605303751.pdf
- https://cdn.shopify.com/s/files/1/0433/8037/5704/files/anabolisme_catabolisme.pdf
- https://cdn.shopify.com/s/files/1/0428/3308/4575/files/4622688052.pdf
- https://cdn.shopify.com/s/files/1/0433/9885/6867/files/mafetufubu.pdf
- https://cdn.shopify.com/s/files/1/0432/6280/4136/files/encyclopedia_of_chart_patterns.pdf
- https://cdn.shopify.com/s/files/1/0437/6700/5333/files/452042771.pdf
- https://cdn.shopify.com/s/files/1/0437/6202/4605/files/amnagement_du_territoire_cours.pdf
- https://cdn.shopify.com/s/files/1/0436/7125/7241/files/vudelul.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006c5a.binb3f10bfd5a50f3264476b1c4be80c3ca8345dd77b9b9faea75277e623851c5be |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C5A | 5216 bytes |
font_01_sfnt_off00007e0c.bin96945b3f72538d9f909bb6bd9c56b6b0caece7a796fd0615e5c565205436ec22 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E0C | 9828 bytes |
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