MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/wix?keyword=adi+kar%25C4%25B1%25C5%259F%25C4%25B1m+nedir, which is also listed as a malicious redirector. Additionally, the PDF exhibits characteristics of an SEO link farm, embedding numerous external links, with the primary one pointing to static.usrfiles.com.
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=adi+kar%25C4%25B1%25C5%259F%25C4%25B1m+nedir
- https://static.usrfiles.com/ugd/b8c837_32d3486222454cd68abd59b2f62f3870.pdf
- https://static.usrfiles.com/ugd/b8c837_2c03e11b03fc4f46b2e3868bc0f208f9.pdf
- https://static.usrfiles.com/ugd/b8c837_3dac6d33d23745beac1c2bc26ccdf979.pdf
- https://cdn.shopify.com/s/files/1/0435/6620/3029/files/interview_questions_paper_format.pdf
- https://cdn.shopify.com/s/files/1/0432/1044/0862/files/36450028567.pdf
- https://cdn.shopify.com/s/files/1/0427/8085/2383/files/autolesiones_no_suicidas.pdf
- https://cdn.shopify.com/s/files/1/0430/5790/5818/files/gutazilekutexikewodewob.pdf
- https://static.usrfiles.com/ugd/b8c837_042db4c71278417f95a5e63d6f565598.pdf
- https://static.usrfiles.com/ugd/b8c837_136a7fb3610b45b89b3d2de77bad39f3.pdf
- https://static.usrfiles.com/ugd/b8c837_4c38232bcb744ef8919d9fbf7e0ddbee.pdf
- https://static.usrfiles.com/ugd/b8c837_393e1c2745cd476e9e03f675baba9934.pdf
- https://static.usrfiles.com/ugd/b8c837_41934b2beee5442ca25610b90fd6c930.pdf
- https://static.usrfiles.com/ugd/b8c837_04441d11a284475b909021614dadf60f.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_off00007771.bin4b846a7065f5528cfe591998b428e97fece46dc3920c56733e79066f64e10ba5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7771 | 5092 bytes |
font_01_sfnt_off000088ab.bin37e97ca293636eaf7305e609f7c1b2c0fa7b9852ecbcdb15399986ce7dbdab95 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x88AB | 12252 bytes |
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