MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious by a machine learning classifier and contains numerous embedded links. One critical heuristic identified it as a PDF redirector link pointing to ttraff.ru, and another as a PDF link farm with many external links. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/wix?keyword=filosofia+de+la+educacion, suggesting a lure related to 'philosophy of education'. The primary malicious IOC is the redirector URL.
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=filosofia+de+la+educacion
- https://static.usrfiles.com/ugd/79e0dc_900925f71b2540f78f4873759981aa53.pdf
- https://static.usrfiles.com/ugd/b444d4_81f6f235cd9044378b82fc68a281d58f.pdf
- https://static.usrfiles.com/ugd/7ff653_26bf3967f980450b8358e3cefae4ac7f.pdf
- https://static.usrfiles.com/ugd/48f461_dec66c122ccd49d9a5230ad1bba8cc17.pdf
- https://static.usrfiles.com/ugd/111c46_75237cca8d754d4ca6a3f3314c62284f.pdf
- https://static.usrfiles.com/ugd/cfbfd2_7da777f6d5434548afa226605a80b033.pdf
- https://cdn.shopify.com/s/files/1/0433/9207/3895/files/calendario_escolar_2020_panama.pdf
- https://cdn.shopify.com/s/files/1/0433/2843/8427/files/54792130575.pdf
- https://cdn.shopify.com/s/files/1/0428/0041/4883/files/bejitatut.pdf
- https://cdn.shopify.com/s/files/1/0434/0632/7957/files/bmp_high_speed_doors_manual.pdf
- https://cdn.shopify.com/s/files/1/0431/8278/4676/files/57917823003.pdf
- https://static.usrfiles.com/ugd/764aaa_a7552be26ae04732989246dbdd5983b6.pdf
- https://static.usrfiles.com/ugd/b8c837_cfea9a07c9134d0aafa2fb585b925d37.pdf
- https://static.usrfiles.com/ugd/5b9a87_ee292390ca9041fab0d4962434dcd04a.pdf
- https://static.usrfiles.com/ugd/f3ecbe_e5ca9fbc45974f1c9f40897c14ca63a6.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_off00006738.bine27615f840cbf450d5c5530a62bd0688100f0832b48ab8a1a12b10223addab84 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6738 | 4876 bytes |
font_01_sfnt_off000077da.binde59c3f95b3683684b1d9b005d64e7684d9ee8434ea6b12c13c1539952d02403 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77DA | 10540 bytes |
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