MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was flagged as malicious by a machine learning classifier and contains a high number of embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/wix?keyword=mr+blue+sky', which is also listed as a malicious redirector. The presence of numerous links to external PDFs suggests a link farm designed to distribute malicious content or engage in SEO poisoning.
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.cc/wix?keyword=mr+blue+sky
- https://static.usrfiles.com/ugd/33a2e4_d777007b6dc54f22a98178d9e513e653.pdf
- https://static.usrfiles.com/ugd/b8c837_a3912266a6694ec7a4038ccb1f1778ca.pdf
- https://static.usrfiles.com/ugd/7598fa_5797a93134d94a7287c278011f2e5447.pdf
- https://static.usrfiles.com/ugd/913720_9c5aea2e48d045aebe0d8125e74a42af.pdf
- https://static.usrfiles.com/ugd/1cfe37_d458656441314c9bacf056a5ac547b09.pdf
- https://static.usrfiles.com/ugd/2ac701_f6680c51799a406caa1473a3ba6a412e.pdf
- https://static.usrfiles.com/ugd/b8c837_a0f184f9bf4349768a38ab38577e1672.pdf
- https://static.usrfiles.com/ugd/b5472a_19c6c5d0315d4c7e8cb152c4a5314580.pdf
- https://static.usrfiles.com/ugd/96768c_4f58fe0eaf9f4bcfb2af738158cf2260.pdf
- https://cdn.shopify.com/s/files/1/0430/4666/6389/files/7690926437.pdf
- https://cdn.shopify.com/s/files/1/0434/0567/2597/files/canine_distemper_treatment.pdf
- https://cdn.shopify.com/s/files/1/0430/1714/2433/files/best_gacha_games_2019_android.pdf
- https://cdn.shopify.com/s/files/1/0460/1983/8119/files/83054595366.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_off00006dcb.bin62d9acd3164f0fba9cf263d655381d32422e27a2f3bcd741671f1e29bfadcaaa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DCB | 4780 bytes |
font_01_sfnt_off00007e2f.binb5487e6c8b4fd96bbb902b5aba65fe246e177962f5a2695c5a9e04a3ad976f07 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E2F | 11004 bytes |
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