MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains text fragments related to 'Trauma center: under the knife 2' and the malicious URL, suggesting a lure. The presence of numerous embedded URLs, many hosted on Shopify, indicates a link farm strategy, with at least one identified as a malicious redirector. The ML classifier strongly flagged this PDF as malicious.
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=trauma+center%253A+under+the+knife+2
- https://cdn.shopify.com/s/files/1/0435/5856/8097/files/libugekek.pdf
- https://cdn.shopify.com/s/files/1/0435/6059/9701/files/34512265619.pdf
- https://cdn.shopify.com/s/files/1/0437/6811/9448/files/poe_blight_league_challenges_guide.pdf
- https://cdn.shopify.com/s/files/1/0432/2682/4859/files/zuxukujefig.pdf
- https://cdn.shopify.com/s/files/1/0429/5763/5743/files/16931577212.pdf
- https://cdn.shopify.com/s/files/1/0434/7556/6752/files/67638035117.pdf
- https://cdn.shopify.com/s/files/1/0433/0897/4235/files/endless_frontier_artifact_transcend_guide.pdf
- https://cdn.shopify.com/s/files/1/0437/1605/1112/files/89865946448.pdf
- https://cdn.shopify.com/s/files/1/0433/5344/0414/files/21318352484.pdf
- https://cdn.shopify.com/s/files/1/0431/0204/4316/files/loterutipedaposamalur.pdf
- https://cdn.shopify.com/s/files/1/0433/5727/4270/files/triangle_dor_positionnement.pdf
- https://static.usrfiles.com/ugd/b8c837_a1c8e0aa06f8420399027d1e12471151.pdf
- https://static.usrfiles.com/ugd/ae059d_274dc18a1d2c46a5b70104c55ee59886.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_off000075cb.bin68725bdf37156f8b045530f17df21cb6f3c3636591cc92beb031a6e6261e1671 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75CB | 14432 bytes |
font_01_sfnt_off0000a40f.bine51207b27cee1dd5a2ba1404c48ab21adc5ef3a014f33c8d775ed2d15791e652 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA40F | 5248 bytes |
font_02_sfnt_off0000b5b9.bineae53be30ebaa6ad6039d5b978c1a847ec93c73bfe11d1c090123dec405ba303 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB5B9 | 9992 bytes |
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