MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a large number of embedded links, many of which point to a link farm designed to redirect users to malicious infrastructure. The primary redirector URL identified is `https://ttraff.ru/wix?keyword=ciclo+de+carnot+formulas`. The ML classifier strongly indicated maliciousness, and the presence of a link farm suggests an attempt to distribute malware or phishing 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.ru/wix?keyword=ciclo+de+carnot+formulas
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/77eba6_6bf4f7b97c384eb1867faf3e7a8f5398.pdf
- https://static.usrfiles.com/ugd/de3d83_9dc2e697de014eb290ee5a45e02200b1.pdf
- https://static.usrfiles.com/ugd/b8c837_ad7635ca5d5647d497cd863b6d901433.pdf
- https://static.usrfiles.com/ugd/5360f8_ee850c4ea961443a86eb016454b48a5f.pdf
- https://cdn.shopify.com/s/files/1/0429/9289/4105/files/8431694841.pdf
- https://cdn.shopify.com/s/files/1/0463/3391/9393/files/35015703740.pdf
- https://cdn.shopify.com/s/files/1/0434/1828/8284/files/zeliluj.pdf
- https://static.usrfiles.com/ugd/63d3ad_cf8070bf0b3a4c6cbddd20178a535c8e.pdf
- https://static.usrfiles.com/ugd/912de2_2dfdf2f3f0cb4e5c9fdbce7cd7cae134.pdf
- https://static.usrfiles.com/ugd/cfbfd2_bb99d902dc6242e58a40a3a6b1d9f1ff.pdf
- https://static.usrfiles.com/ugd/bd5c68_573c1e3b6b224ede8a45dabb7cb04630.pdf
- https://static.usrfiles.com/ugd/5fd5c1_769a54bea8d043cda6df1beec0d7451a.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
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000067f5.bin5a695f38e65d642a29fe9cc30482a941b4db685fed8c6c7fd4dd2d75d4c4be6a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67F5 | 5072 bytes |
font_01_sfnt_off00007908.binf125e91489b1d7dd5250888557b935fcc812058c1480c440dd2cac6e905e3ec4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7908 | 14560 bytes |
font_02_sfnt_off0000a704.bin354dce64f07f3d7acdf6a04edf763950ffbfec4edcbb4bfe17b65a83544077bb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA704 | 16036 bytes |
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