MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many of which point to a redirector service. The document body text, though partially garbled, suggests a lure related to a textbook chapter, likely to entice clicks on the malicious link. The ML classifier strongly indicated maliciousness, and the PDF structure itself was flagged for containing a link farm.
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=ways+of+the+world+textbook+pdf+chapter+23
- http://files.juliannawells.com/uploads/1/3/1/6/131637881/9550118.pdf
- http://vugotikad.seekanddestroy.info/uploads/1/3/0/8/130814058/zujow.pdf
- http://files.georgiamartinteachingportfolio.com/uploads/1/3/2/3/132303219/zesujejabeno.pdf
- http://files.mdyc.com/uploads/1/3/1/3/131381518/xomajesugatomipadov.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38461358607.pdf
- https://cdn.shopify.com/s/files/1/0428/8839/6959/files/52414843217.pdf
- https://cdn.shopify.com/s/files/1/0434/7727/0692/files/30557735100.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pewobaropelizovijekozuji.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61047377128.pdf
- https://cdn.shopify.com/s/files/1/0435/2265/4362/files/83654913578.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46287179129.pdf
- https://cdn.shopify.com/s/files/1/0430/8277/6729/files/mulimiwawa.pdf
- https://cdn.shopify.com/s/files/1/0427/5775/0951/files/35650174199.pdf
- https://cdn.shopify.com/s/files/1/0429/3397/7247/files/zasejaguj.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_off000044e4.bine30a43b06b0b5c0f3c9db887c27eb448b213ccbff36b48f0ba22a132c9183708 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x44E4 | 6020 bytes |
font_01_sfnt_off0000597c.bin4cbfc0a73680349112e7ffba669ca760d4c2567559f89b89600fcbc236c6845e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x597C | 11324 bytes |
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