MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that redirect to a known malicious infrastructure, specifically 'ttraff.ru'. The document body, though heavily obfuscated, contains a reference to 'Legend of Korra book 3' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier also strongly indicated maliciousness.
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=legend+of+korra+book+3
- https://static.usrfiles.com/ugd/7baf93_6a3b5cba8d9748e3843b4a5183ed4883.pdf
- https://static.usrfiles.com/ugd/b8c837_8a1106e07fa74690aa14897735df7630.pdf
- https://static.usrfiles.com/ugd/269bb8_31286efe7602445fb1f343beba260a0c.pdf
- https://static.usrfiles.com/ugd/b8c837_e7828048057040e9b529c254bdcd7fb6.pdf
- https://static.usrfiles.com/ugd/d54300_669080c3268f46f1bd9d97057f78c7d5.pdf
- https://static.usrfiles.com/ugd/ce14f3_6441c5e46218402b8392dcd6c7c365e8.pdf
- https://cdn.shopify.com/s/files/1/0438/9113/0536/files/birdland_bass_transcription.pdf
- https://cdn.shopify.com/s/files/1/0431/0227/3703/files/5646926013.pdf
- https://cdn.shopify.com/s/files/1/0434/5656/1318/files/7865923405.pdf
- https://cdn.shopify.com/s/files/1/0441/3535/0424/files/mibobe.pdf
- https://cdn.shopify.com/s/files/1/0431/1102/2756/files/date_du_brevet_2019_reporter.pdf
- https://cdn.shopify.com/s/files/1/0430/8631/5682/files/41943506998.pdf
- https://cdn.shopify.com/s/files/1/0432/3734/3387/files/meaning_of_sustainable_development.pdf
- https://cdn.shopify.com/s/files/1/0433/2702/9400/files/19844614238.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 |
|---|---|---|---|
font_00_sfnt_off000098d0.bincc7c87e91c904a23619ce7f005b25e5615754fdac51006494d328b71a95847e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x98D0 | 3108 bytes |
font_01_sfnt_off0000a3e1.binb8d9b4b59bae2d5dae9f49dc0880ac55850b38a6b1d11856478395a7e42e4a20 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA3E1 | 5176 bytes |
font_02_sfnt_off0000b59a.bin80962e5be0bf7ae4fc50680e9b88de43d07519e1649b3ce4ddce231ae7d9c77b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB59A | 10256 bytes |
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