MALICIOUS
128
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a critical heuristic firing for a malicious redirector link, specifically 'https://ttraff.link/wix?keyword=difference+between+biochar+and+charcoal+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links pointing to external resources, many hosted on 'static.usrfiles.com'. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The urgency lure heuristic further supports the deceptive nature of the document.
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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.link/wix?keyword=difference+between+biochar+and+charcoal+pdf
- https://static.usrfiles.com/ugd/0dd040_3795651af192442cb0ff9d2e3cbc7dc9.pdf
- https://static.usrfiles.com/ugd/3402b1_aa1d16ce5f504a7a82c144ffbddb5bf1.pdf
- https://static.usrfiles.com/ugd/44b221_3cba869c4dbf40e7851dc1cd88fe04b4.pdf
- https://static.usrfiles.com/ugd/6166c9_297c80acaaa44e3ab16e48677ff7be25.pdf
- https://static.usrfiles.com/ugd/225520_80cbc333ac4d4e8c9abb5536494c2d6a.pdf
- https://static.usrfiles.com/ugd/ff2e72_c990c9c92ac34ef99c20868e9c4b2c38.pdf
- https://static.usrfiles.com/ugd/a0905b_103edbf2401e47fc9343f7080e7fd231.pdf
- https://static.usrfiles.com/ugd/0ad6c7_657615fd48d3492f883d072a7a451bc9.pdf
- https://static.usrfiles.com/ugd/1e533a_3ff7083cc9f14ff8b55aeac76f2ac166.pdf
- https://static.usrfiles.com/ugd/9f6a24_8be4632647d14aba886fa1fbca22ec26.pdf
- https://static.usrfiles.com/ugd/ea2f88_514ae38970944089a15ce524e467cce0.pdf
- https://static.usrfiles.com/ugd/67f5f7_7b3ef812f05e485093cdec618a78d1ce.pdf
- https://static.usrfiles.com/ugd/b910ae_fce62e0dc7a047468f5d5ca8f3836380.pdf
- https://cdn.shopify.com/s/files/1/0428/4458/6140/files/ctet_syllabus_2018_in_english.pdf
- https://cdn.shopify.com/s/files/1/0432/6686/7362/files/sql_server_2020_alwayson_availability_groups_step_by_step.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_off000112f7.bin9a9da24dd61f81c5018f87f7f19c8be5cbd8c71334f997b097c51f42d77ee737 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112F7 | 5296 bytes |
font_01_sfnt_off0001250c.bin4559c83ec91cc734dd7847ab2d14ab562990fa5f8a435bf270269c8fe0d851fb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1250C | 11924 bytes |
font_02_sfnt_off00014d8e.binaabbb95e4258a1bccfe6759090a0a8b97a33e8154131110566ffb2eaa8fdb080 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14D8E | 16148 bytes |
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