MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a malicious redirector link disguised as a search result for a technical topic. The ML classifier strongly flagged this PDF as malicious. The primary IOC is the redirector URL, which is designed to lead users to further malicious content.
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=time+complexity+of+all+sorting+and+searching+algorithms+pdf
- http://files.northernchainspecialties.com/uploads/1/3/0/7/130775215/rivuzomogiz.pdf
- http://files.burkettbuilding.com/uploads/1/3/0/8/130874490/soralofajekanilem.pdf
- http://files.coolcaribbeanvacations.com/uploads/1/3/0/7/130775837/c945b79.pdf
- http://files.foreverbostons.com/uploads/1/3/1/4/131482916/lopujubavijasagu.pdf
- https://cdn.shopify
- https://cdn.shopify.com/s/files/1/0438/2271/0941/files/21616376960.pdf
- https://cdn.shopify.com/s/files/1/0429/7539/5993/files/vufuvujegubajexakoz.pdf
- https://cdn.shopify.com/s/files/1/0440/9557/0072/files/44465770897.pdf
- https://cdn.shopify.com/s/files/1/0432/7096/3350/files/pozuzenolizudosipidinulat.pdf
- https://cdn.shopify.com/s/files/1/0430/7625/5897/files/tuminuteniboxakege.pdf
- https://cdn.shopify.com/s/files/1/0434/2244/9820/files/85233253519.pdf
- https://cdn.shopify.com/s/files/1/0435/0525/4566/files/xakak.pdf
- https://cdn.shopify.com/s/files/1/0434/1553/5774/files/gukevok.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49816413057.pdf
- https://cdn.shopify.com/s/files/1/0428/8380/9439/files/mulonezunakos.pdf
- https://cdn.shopify.com/s/files/1/0427/4801/8855/files/28871027367.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 |
|---|---|---|---|
stream_007_off0000a7bb.bincf14984b9870bb1f6fa8641299a7537056e41895618ba27a50753824063be083 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xA7BB | 17148 bytes |
font_00_sfnt_off00006958.bin35a9f648cbd3accbea04d0b922b9d90281fd1857b5fd98f2c0494f0c514f5d88 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6958 | 5476 bytes |
font_01_sfnt_off00007bc9.bin72f4e7427f510eeb7446c2dbf4ff2e2bda16c21cd096066d7cede2e8d627d5c3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BC9 | 13948 bytes |
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