MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=msi+970+gaming+atx'. Additionally, it exhibits a PDF link farm behavior, embedding numerous external links, with the first being 'https://static.usrfiles.com/ugd/b8c837_869d5a25261f49dfa59570634880b37f.pdf'. The ML classifier also strongly indicated maliciousness. The document body, though garbled, contains keywords that likely serve as lures for the malicious link.
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=msi+970+gaming+atx
- https://static.usrfiles.com/ugd/b8c837_869d5a25261f49dfa59570634880b37f.pdf
- https://static.usrfiles.com/ugd/ec0c41_eb06e21e2856449e93bc943279c3dd9b.pdf
- https://static.usrfiles.com/ugd/7baf93_a02d8abfef324f1caa8d0fe9cd66fb07.pdf
- https://static.usrfiles.com/ugd/ab922d_9a59891f7a694b65847dc83a3ba4e2c2.pdf
- https://static.usrfiles.com/ugd/ac72e0_644c7ece3d7644b099a2e93707dfca5a.pdf
- https://static.usrfiles.com/ugd/0c4177_0b522a519d9241d88a229d5c87a57545.pdf
- https://static.usrfiles.com/ugd/cafc24_a80737b997ec47b8b6434e4073cd3f8e.pdf
- https://static.usrfiles.com/ugd/a6e5e9_aefa9e67de2c4c4cab498dac6f8c4b52.pdf
- https://static.usrfiles.com/ugd/8ba634_a95d33d829cc44b2823c2ed1362fec17.pdf
- https://static.usrfiles.com/ugd/b8c837_3a1035ac50134c5da3e49d72c27d05b6.pdf
- https://static.usrfiles.com/ugd/63d3ad_0564d08f460e4a1da1a5815c8870c69e.pdf
- https://cdn.shopify.com/s/files/1/0428/4976/3494/files/nutamerapizokivuwifanoto.pdf
- https://cdn.shopify.com/s/files/1/0430/5269/5703/files/medical_english_course_book.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_off00006189.bin7ea183ad549b520e2b27925917e76b43e1c68f040447c935d17e173fbdb9e0e9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6189 | 5328 bytes |
font_01_sfnt_off000073a0.binb3601c730a8bd67248d52e4b868a51b6f0ad1ae97f9505b8f9db0fc1f876e315 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73A0 | 10976 bytes |
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