MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a significant number of embedded links, with one identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/pify?keyword=angiosperms+vs+gymnosperms+pdf, which is flagged as a malicious redirector. This suggests the document's primary purpose is to lure users to malicious sites.
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.ru/pify?keyword=angiosperms+vs+gymnosperms+pdf
- http://files.eskynazarene.org/uploads/1/3/0/7/130739621/4146304.pdf
- http://files.yukonsbeard.com/uploads/1/3/1/3/131379719/5431825.pdf
- http://sizasine.sharpbydesign.com/uploads/1/3/1/4/131407995/bca1a2d2bfae.pdf
- https://cdn.shopify.com/s/files/1/0435/6869/3407/files/azamgarh_map_download.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90685258811.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pusowa.pdf
- https://cdn.shopify.com/s/files/1/0433/2093/4558/files/82455546139.pdf
- https://cdn.shopify.com/s/files/1/0437/4796/7130/files/junib.pdf
- https://cdn.shopify.com/s/files/1/0433/5930/5880/files/62598275755.pdf
- https://cdn.shopify.com/s/files/1/0430/6498/3703/files/bakuzukonakobes.pdf
- https://cdn.shopify.com/s/files/1/0432/9163/9974/files/10081818623.pdf
- https://cdn.shopify.com/s/files/1/0436/3934/1216/files/skf_bearing_nomenclature.pdf
- https://cdn.shopify.com/s/files/1/0434/6835/7796/files/pazomasunamomitapa.pdf
- https://cdn.shopify.com/s/files/1/0428/3655/7987/files/rixepurobo.pdf
- https://cdn.shopify.com/s/files/1/0436/0473/8206/files/doxufomudonunutapox.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_off000064af.bin7c2ebc8ce8619670d9f7a308aeb495fe3a386fdfcda5d8f3d92d07b300db00f6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64AF | 5268 bytes |
font_01_sfnt_off000076a0.bincba5ef1f8c8d770ab27540245350bc5b94a75a273d1c2a082e5f5e1b2a046336 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76A0 | 10144 bytes |
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