MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/wix?keyword=understanding+the+linux+kernel+third, which is identified as a malicious redirector. The presence of numerous embedded links, many pointing to Shopify domains, suggests an attempt to disguise malicious activity within a seemingly legitimate document structure. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 3
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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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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=understanding+the+linux+kernel+third
- https://cdn.shopify.com/s/files/1/0460/2032/9631/files/bubble_struggle_pc.pdf
- https://cdn.shopify.com/s/files/1/0431/9431/9009/files/76332226870.pdf
- https://cdn.shopify.com/s/files/1/0459/9601/5773/files/14261889471.pdf
- https://cdn.shopify.com/s/files/1/0462/1418/5114/files/70013576906.pdf
- https://cdn.shopify.com/s/files/1/0437/7473/8593/files/sba_form_413.pdf
- https://cdn.shopify.com/s/files/1/0432/4301/2256/files/applied_linguistics_to_foreign_language_teaching_and_learning.pdf
- https://cdn.shopify.com/s/files/1/0434/6478/6086/files/21235555849.pdf
- https://cdn.shopify.com/s/files/1/0432/6873/5140/files/ahlan_wa_sahlan_textbook_free.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50751207741.pdf
- https://cdn.shopify.com/s/files/1/0433/0985/8984/files/mugifitizulazo.pdf
- https://cdn.shopify.com/s/files/1/0430/7730/4481/files/1989_procraft_bass_boat_owners_manual.pdf
- https://cdn.shopify.com/s/files/1/0429/4891/9450/files/vabugumajufavowaf.pdf
- https://static.usrfiles.com/ugd/b8c837_fde285ca2f0545b58b282b894a371ec7.pdf
- https://static.usrfiles.com/ugd/136d07_920fb7d4cf014fd79a2c5fb777b039c7.pdf
- https://static.usrfiles.com/ugd/b8c837_20e9b76d67f040d0ae4bcbbd3b4ace65.pdf
- https://static.usrfiles.com/ugd/b916f4_9adfe6ce4573485ab38d125b5e25821b.pdf
- https://static.usrfiles.com/ugd/b8c837_1de383fdc8ff445f9343ab234c04cb5e.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_off0000662c.bin9e0e23cd92030d8767b47518e7e13b797fa293cc83357519c33f0d83ecd76b5b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x662C | 5208 bytes |
font_01_sfnt_off000077d3.bin95bf13e33e2d80ab428c68b3fd7ae573691f377556baed7607f69087c9abce00 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77D3 | 14632 bytes |
font_02_sfnt_off0000a4d7.bine4fbeb38030c3769964c1a5951c533a55f21893d08e7f16e9b1af1c698f23ca6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA4D7 | 16300 bytes |
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